Podcast
Questions and Answers
Which of the following is not a linear regression model?
Which of the following is not a linear regression model?
- 2-Y = a + b + (X1 / X2)
- Y = aX1 + X2
- Y = a + X1 + bX2
- Y = a + bx1 + x1x2 (correct)
Which OP-AMP circuit uses resistance in series and capacitance in feedback?
Which OP-AMP circuit uses resistance in series and capacitance in feedback?
- Integrator (correct)
- Band Pass Filter
- Differentiator
- Stop Band Filter
In which of the following stages are you more likely to find status reports, many changes, and the creation of forecasts?
In which of the following stages are you more likely to find status reports, many changes, and the creation of forecasts?
- Planning (correct)
- Delivering
- Executing
- Conceptualizing
- Defining
The intersecting point for WBS and OBS is:
The intersecting point for WBS and OBS is:
The final step in the definition of a work breakdown structure is to:
The final step in the definition of a work breakdown structure is to:
What is the least instructive solution to connect hijacking?
What is the least instructive solution to connect hijacking?
A 10MVA generator has a power factor of 0.866 lagging. The reactive power produced will be:
A 10MVA generator has a power factor of 0.866 lagging. The reactive power produced will be:
For a transformer to be tested at full load conditions but consuming only losses from the main, we do:
For a transformer to be tested at full load conditions but consuming only losses from the main, we do:
A 400V/100V, 10KVA two winding transformer is reconnected as an auto transformer across a suitable voltage source. The maximum rating of such an arrangement could be:
A 400V/100V, 10KVA two winding transformer is reconnected as an auto transformer across a suitable voltage source. The maximum rating of such an arrangement could be:
A single-phase, 2200/200 V transformer takes 1 A at the HT side or no load at a power factor of 0.385. The iron losses are:
A single-phase, 2200/200 V transformer takes 1 A at the HT side or no load at a power factor of 0.385. The iron losses are:
Neglecting resistance, at constant flux density, the power required per kilogram to magnetize the iron core of a transformer is 0.8 W at 25 Hz and 2.04 W at 60 Hz. The power required per kilogram for 100 Hz is:
Neglecting resistance, at constant flux density, the power required per kilogram to magnetize the iron core of a transformer is 0.8 W at 25 Hz and 2.04 W at 60 Hz. The power required per kilogram for 100 Hz is:
What are morals?
What are morals?
For maximum voltage regulation, tan Φ = ______
For maximum voltage regulation, tan Φ = ______
For zero voltage regulation, tan Φ = ______
For zero voltage regulation, tan Φ = ______
What is the shunt resistance in a D'arsonval meter as a DC ammeter?
What is the shunt resistance in a D'arsonval meter as a DC ammeter?
What is the formula for Series resistance in a D'arsonval meter as a DC voltmeter?
What is the formula for Series resistance in a D'arsonval meter as a DC voltmeter?
Match the six steps to the Work Breakdown Structure:
Match the six steps to the Work Breakdown Structure:
Match the steps of Project Scope Management:
Match the steps of Project Scope Management:
Match the following components with their descriptions:
Match the following components with their descriptions:
A passive filter can:
A passive filter can:
Which of the following types of material has high thermal and electrical conductivity? A. Ceramic, B. Metal, C. __________ (any other write here)
Which of the following types of material has high thermal and electrical conductivity? A. Ceramic, B. Metal, C. __________ (any other write here)
What is the required minimum clearance distance, R, if the phase voltage of the live parts is 13,800V?
What is the required minimum clearance distance, R, if the phase voltage of the live parts is 13,800V?
Which of the following systems uses Assembly language?
Which of the following systems uses Assembly language?
Which is not part of Scope Management?
Which is not part of Scope Management?
Project life cycle is different than product life cycle in that project life cycle:
Project life cycle is different than product life cycle in that project life cycle:
What is the worth after 5 years of an investment of One Million Qatari Riyals if the APR is 9% paid monthly?
What is the worth after 5 years of an investment of One Million Qatari Riyals if the APR is 9% paid monthly?
Which is not a resource related to activities?
Which is not a resource related to activities?
Embedded Systems should have the best dynamic response.
Embedded Systems should have the best dynamic response.
A battery which factor is least dependent for long self-discharge property:
A battery which factor is least dependent for long self-discharge property:
What is analysis technique to determine the effect of multi-sources?
What is analysis technique to determine the effect of multi-sources?
What is the low pass filter?
What is the low pass filter?
What is the resistance for 100W and 200V potentials?
What is the resistance for 100W and 200V potentials?
A cyclic redundancy check (CRC) generator is based on the Exclusive OR operation.
A cyclic redundancy check (CRC) generator is based on the Exclusive OR operation.
Engineers are:
Engineers are:
The voltage measured between Corner B and ground is most nearly:
The voltage measured between Corner B and ground is most nearly:
The magnitude of the line current in phase C is most nearly:
The magnitude of the line current in phase C is most nearly:
Which one is the harmonic source in the following list?
Which one is the harmonic source in the following list?
A low-pass filter is used to:
A low-pass filter is used to:
A 3-phase, 60-Hz induction motor has how many poles?
A 3-phase, 60-Hz induction motor has how many poles?
Which of the following is a name for a set of indices and values?
Which of the following is a name for a set of indices and values?
Your boss has just approved the initiation of a project. What should the project manager do first?
Your boss has just approved the initiation of a project. What should the project manager do first?
The spinning reserve is the:
The spinning reserve is the:
The two resistances R1 and R2 give combined resistance of 4.5 ohms when in series and 1 ohm when in parallel. The resistances are:
The two resistances R1 and R2 give combined resistance of 4.5 ohms when in series and 1 ohm when in parallel. The resistances are:
An underground system is built for a military marine system. The insulation is designed for which voltage level?
An underground system is built for a military marine system. The insulation is designed for which voltage level?
The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be:
The voltage gain of an amplifier with 9% negative feedback is 10. The voltage gain without feedback will be:
Block plot shown below, what type?
Block plot shown below, what type?
Terminal represents control input of BJT:
Terminal represents control input of BJT:
The minimum standard wire gauge of earth wire is:
The minimum standard wire gauge of earth wire is:
An activity in a project network can be represented by which of the following?
An activity in a project network can be represented by which of the following?
Harmonics in a system are mainly due to:
Harmonics in a system are mainly due to:
What is the analysis technique to determine the effect of multi-sources?
What is the analysis technique to determine the effect of multi-sources?
What is meant by Ethics?
What is meant by Ethics?
The collector region of a transistor is doped?
The collector region of a transistor is doped?
First line in Transmission is used for?
First line in Transmission is used for?
Which one of the engineering characteristics can best explain the following concept? Base your decision on reason rather than emotion.
Which one of the engineering characteristics can best explain the following concept? Base your decision on reason rather than emotion.
According to the Nyquist Sampling Theorem, a sufficient condition for these to be no aliasing in the sampled signal is that the highest frequency in the signal must be:
According to the Nyquist Sampling Theorem, a sufficient condition for these to be no aliasing in the sampled signal is that the highest frequency in the signal must be:
If the signal power is doubled at a given transmitter, what is the decibel increase?
If the signal power is doubled at a given transmitter, what is the decibel increase?
In optical communication, Frequency Division Multiplexing (FDM) is called?
In optical communication, Frequency Division Multiplexing (FDM) is called?
TQM stands for?
TQM stands for?
Which is liquid in the following substances?
Which is liquid in the following substances?
The power factor of an alternator is obtained from its:
The power factor of an alternator is obtained from its:
An OP-AMP based inverting amplifier; the INPUT impedance is:
An OP-AMP based inverting amplifier; the INPUT impedance is:
An OP-AMP based Non-inverting amplifier; the INPUT impedance is:
An OP-AMP based Non-inverting amplifier; the INPUT impedance is:
Which circuit breaker is commonly used at the distribution level?
Which circuit breaker is commonly used at the distribution level?
What does it mean if the fuse rate is 8 Ampere?
What does it mean if the fuse rate is 8 Ampere?
What is the term for component arrangement for waves in transmitting and receiving?
What is the term for component arrangement for waves in transmitting and receiving?
What is the dumping ratio O/P / I/P = U/R where S = 1?
What is the dumping ratio O/P / I/P = U/R where S = 1?
An alternator operates at _____ for capacitive loads.
An alternator operates at _____ for capacitive loads.
The minimum time to complete the project is?
The minimum time to complete the project is?
What tuning frequency is used in the local oscillator for a station at 540 kHz?
What tuning frequency is used in the local oscillator for a station at 540 kHz?
For which topology can 10BaseT not be used without additional hardware conversion?
For which topology can 10BaseT not be used without additional hardware conversion?
High voltage windings of transformers have _____ resistivity than the low voltage side.
High voltage windings of transformers have _____ resistivity than the low voltage side.
What is the ACR of a conductor with 7 steel wires and 25 aluminum wires?
What is the ACR of a conductor with 7 steel wires and 25 aluminum wires?
The output D in the circuit is:
The output D in the circuit is:
What is the speed of wave in a cable if the cable length is 1000m and the time of returning signal is 9.43μsec?
What is the speed of wave in a cable if the cable length is 1000m and the time of returning signal is 9.43μsec?
The equivalent circuit of an induction machine at no load is the same as that of the transformer but with?
The equivalent circuit of an induction machine at no load is the same as that of the transformer but with?
Which of these is not a rule of interaction?
Which of these is not a rule of interaction?
Within the battery, conventional current flow is?
Within the battery, conventional current flow is?
Activity on arrow needs to use dummy activities to avoid precedence problems due to?
Activity on arrow needs to use dummy activities to avoid precedence problems due to?
What is the average value of the signal v(t) = 5 sin(377t)?
What is the average value of the signal v(t) = 5 sin(377t)?
For a 3-phase transformer rated at 25MVA with 8 percent impedance, what is the per unit impedance on a 100 MVA base?
For a 3-phase transformer rated at 25MVA with 8 percent impedance, what is the per unit impedance on a 100 MVA base?
A DC voltmeter with coil resistance 150Ω and sensitivity of 10,000Ω/V is used. What type and magnitude of resistance is required?
A DC voltmeter with coil resistance 150Ω and sensitivity of 10,000Ω/V is used. What type and magnitude of resistance is required?
The offset of a particular segment varies from?
The offset of a particular segment varies from?
A power gain of 30dB is equivalent to which amplification factor?
A power gain of 30dB is equivalent to which amplification factor?
The power factor of an alternator depends on?
The power factor of an alternator depends on?
Fluorescent light flickers due to?
Fluorescent light flickers due to?
Which of the following theorems is used for frequency?
Which of the following theorems is used for frequency?
Which of the following can represent an activity on a project network?
Which of the following can represent an activity on a project network?
The Accreditation Board for Engineering and Technology (ABET) is an accrediting agency for?
The Accreditation Board for Engineering and Technology (ABET) is an accrediting agency for?
A cyclic redundancy check (CRC) generator is based on what operation?
A cyclic redundancy check (CRC) generator is based on what operation?
First step of scope planning starts with?
First step of scope planning starts with?
The term Fast Track means?
The term Fast Track means?
In the figure, how are 6Ω, 3Ω, and 9Ω connected?
In the figure, how are 6Ω, 3Ω, and 9Ω connected?
A Cascade amplifier is used to reduce load effect; the output impedance will be?
A Cascade amplifier is used to reduce load effect; the output impedance will be?
The output of a Cascade amplifier is?
The output of a Cascade amplifier is?
The CPU architecture shown in the figure below is best described as?
The CPU architecture shown in the figure below is best described as?
Incandescent lamps work normally with best efficiency at what power factor?
Incandescent lamps work normally with best efficiency at what power factor?
HRC Fuse means High Rupturing Capacity?
HRC Fuse means High Rupturing Capacity?
System means group of elements making a function?
System means group of elements making a function?
A certain communication channel has a signal to noise ratio of 7 and a bandwidth of 10kHz. What is the channel capacity?
A certain communication channel has a signal to noise ratio of 7 and a bandwidth of 10kHz. What is the channel capacity?
Software maintenance activities can be classified into several maintenance types. Which of the following is not a software maintenance type?
Software maintenance activities can be classified into several maintenance types. Which of the following is not a software maintenance type?
An industrial plant is served by a 12470-v delta/480-v grounded-wye transformer. What is the best protection of the transformer against lightning strikes?
An industrial plant is served by a 12470-v delta/480-v grounded-wye transformer. What is the best protection of the transformer against lightning strikes?
What is the primary difference between a programmable logic array designated 16R8 and one designated 20R8?
What is the primary difference between a programmable logic array designated 16R8 and one designated 20R8?
What type of bond guarantees that if a contractor goes broke on a project, the surety will pay the necessary amount to complete the job?
What type of bond guarantees that if a contractor goes broke on a project, the surety will pay the necessary amount to complete the job?
The one-line diagram below represents three single phase transformers connected in a delta-wye arrangement. What is the turns ratio of individual single-phase transformers?
The one-line diagram below represents three single phase transformers connected in a delta-wye arrangement. What is the turns ratio of individual single-phase transformers?
An engineer chooses open collector output TTL technology to drive a device. What is the function of this circuit?
An engineer chooses open collector output TTL technology to drive a device. What is the function of this circuit?
Which of the following junction nodes are forward biased?
Which of the following junction nodes are forward biased?
Which of the following best describes the sequential steps in an Object-Oriented design?
Which of the following best describes the sequential steps in an Object-Oriented design?
Increasing the current withdrawn from a battery has what effect on the battery capacity and why?
Increasing the current withdrawn from a battery has what effect on the battery capacity and why?
Which load is placed in a 3-phase, 4-wire system between phase B and phase C with a phase-to-phase voltage of 13.2kV?
Which load is placed in a 3-phase, 4-wire system between phase B and phase C with a phase-to-phase voltage of 13.2kV?
What is the equivalent resistance of 100 resistors of 100 ohm each connected in parallel?
What is the equivalent resistance of 100 resistors of 100 ohm each connected in parallel?
A 3-phase capacitor rated at 240V and 110 kVAR corrects the power factor of a 3-phase induction motor operating at 280 V. What reactive power does it provide?
A 3-phase capacitor rated at 240V and 110 kVAR corrects the power factor of a 3-phase induction motor operating at 280 V. What reactive power does it provide?
Assuming a fuel cell produces a no-load voltage of 230V at a rated voltage of 300V providing 2.0MW to a DC-AC converter, what is the total internal resistance?
Assuming a fuel cell produces a no-load voltage of 230V at a rated voltage of 300V providing 2.0MW to a DC-AC converter, what is the total internal resistance?
Permanent magnet has a relative permeability that is _____ magnetic material?
Permanent magnet has a relative permeability that is _____ magnetic material?
For effective earthing, which mixture is preferred for filling around the earth electrode?
For effective earthing, which mixture is preferred for filling around the earth electrode?
A discrete silicon semiconductor diode is forward biased at 0.75V; what is the approximate current?
A discrete silicon semiconductor diode is forward biased at 0.75V; what is the approximate current?
For last switching of an NMOS R-pull up inverter, (W/L) should be?
For last switching of an NMOS R-pull up inverter, (W/L) should be?
The voltage regulation of an alternator is ____ for capacitive loads?
The voltage regulation of an alternator is ____ for capacitive loads?
The first step of project scope definition is to?
The first step of project scope definition is to?
While a machine is in operation, the slip of the synchronous machine is?
While a machine is in operation, the slip of the synchronous machine is?
If the induction motor speed at no-load is 745 RPM, what is the speed of the motor?
If the induction motor speed at no-load is 745 RPM, what is the speed of the motor?
Synchronous speed for a motor that is 1600 RPM at 60 Hz; calculate the number of poles.
Synchronous speed for a motor that is 1600 RPM at 60 Hz; calculate the number of poles.
BJT will act as a switch in which region?
BJT will act as a switch in which region?
What is pipelining?
What is pipelining?
A room with a floor area of 50ft x 30ft and ceiling height of 10ft has luminaires suspended 2ft from the ceiling. Assuming a working plane of 30in and a required illumination level of 50fc, what is the net luminous flux using fixtures with a coefficient of utilization of 0.78?
A room with a floor area of 50ft x 30ft and ceiling height of 10ft has luminaires suspended 2ft from the ceiling. Assuming a working plane of 30in and a required illumination level of 50fc, what is the net luminous flux using fixtures with a coefficient of utilization of 0.78?
A motor is equipped with an optical shaft encoder providing 200 pulses per motor revolution. The speed (rpm) of the motor is?
A motor is equipped with an optical shaft encoder providing 200 pulses per motor revolution. The speed (rpm) of the motor is?
BJT will amplify in which region?
BJT will amplify in which region?
Which of the following is related to observation in a measuring instrument?
Which of the following is related to observation in a measuring instrument?
A digital signal needs to be modulated and transmitted. If we need to transmit 4 bits, what is the maximum number of ways it can be transmitted?
A digital signal needs to be modulated and transmitted. If we need to transmit 4 bits, what is the maximum number of ways it can be transmitted?
When using a Zener diode in regulator circuits, the output shape will be affected by?
When using a Zener diode in regulator circuits, the output shape will be affected by?
The motor used in travelling cranes is?
The motor used in travelling cranes is?
Which of the following is not the transmission voltage in Qatar?
Which of the following is not the transmission voltage in Qatar?
Which of the transmission voltage is not applied in Qatar Electrical Specifications?
Which of the transmission voltage is not applied in Qatar Electrical Specifications?
Regarding the software lifecycle, which of the following is not true concerning integration testing?
Regarding the software lifecycle, which of the following is not true concerning integration testing?
The forward pass in project network calculation determines the?
The forward pass in project network calculation determines the?
The single-phase motor used with household ceiling fans is?
The single-phase motor used with household ceiling fans is?
The source voltage in the circuit shown is $v= 100sin 377t$, the peak reverse voltage applied to the diode would be?
The source voltage in the circuit shown is $v= 100sin 377t$, the peak reverse voltage applied to the diode would be?
All of the following are properties of fuses rather than circuit breakers, with one exception, which item is the property of circuit breakers?
All of the following are properties of fuses rather than circuit breakers, with one exception, which item is the property of circuit breakers?
What is the maximum allowable size of the over-current device normally allowed to protect an AWG #12 THHW conductor temperature of 550C?
What is the maximum allowable size of the over-current device normally allowed to protect an AWG #12 THHW conductor temperature of 550C?
A single-phase transformer rated 100/7.2kV has an impedance of 10.0%. During a factory short circuit test done at rated current, the voltage at the HV terminals will be most nearly:
A single-phase transformer rated 100/7.2kV has an impedance of 10.0%. During a factory short circuit test done at rated current, the voltage at the HV terminals will be most nearly:
A radio station transmits 50kW with a directive gain of 105. What is the power density 10km from the radiating antenna?
A radio station transmits 50kW with a directive gain of 105. What is the power density 10km from the radiating antenna?
The SCADA system configuration uses input from an instrument CT with a ratio of 100:5. The transducer supplying the SCADA has a full-scale AC current value of 2.5A. What is most nearly the maximum current in the primary side of the CT?
The SCADA system configuration uses input from an instrument CT with a ratio of 100:5. The transducer supplying the SCADA has a full-scale AC current value of 2.5A. What is most nearly the maximum current in the primary side of the CT?
What is an HRC fuse?
What is an HRC fuse?
Which of the following describes the leakage flux?
Which of the following describes the leakage flux?
For forward biasing, which of the following combinations is correct?
For forward biasing, which of the following combinations is correct?
Which of the following parallel resistances will have the highest value of the equivalent resistance?
Which of the following parallel resistances will have the highest value of the equivalent resistance?
In the 3-phase system, what is the neutral?
In the 3-phase system, what is the neutral?
What is the minimum diode power rating that can be used?
What is the minimum diode power rating that can be used?
Which of the following characteristics is not typical of a project manager?
Which of the following characteristics is not typical of a project manager?
Synchronous speed for a motor at 1200 RPM and 100Hz, calculate the number of poles:
Synchronous speed for a motor at 1200 RPM and 100Hz, calculate the number of poles:
The CPU architecture shown in the figure below is best described as:
The CPU architecture shown in the figure below is best described as:
While the machine is in operation, the slip of the synchronous machine is:
While the machine is in operation, the slip of the synchronous machine is:
What is the required net luminous flux (lumens) for a room with a floor area of 50ft x 30ft and a ceiling height of 10ft assuming a working plane of 30in and a required illumination level of 50fc?
What is the required net luminous flux (lumens) for a room with a floor area of 50ft x 30ft and a ceiling height of 10ft assuming a working plane of 30in and a required illumination level of 50fc?
Block plot shown below, what type?
Block plot shown below, what type?
In HDL based digital systems, the arithmetic multiplication function is difficult to synthesize. Design solutions to this challenge do not include:
In HDL based digital systems, the arithmetic multiplication function is difficult to synthesize. Design solutions to this challenge do not include:
Intersymbol interference is eliminated by applying which of the following?
Intersymbol interference is eliminated by applying which of the following?
Which is liquid in the following substances?
Which is liquid in the following substances?
Which of the following is based on Ohm's Law?
Which of the following is based on Ohm's Law?
Harmonic currents present in a power system may cause:
Harmonic currents present in a power system may cause:
How can we convert inches to centimeters?
How can we convert inches to centimeters?
Which of the following types of material has high thermal and electrical conductivity?
Which of the following types of material has high thermal and electrical conductivity?
The Bode plot for the circuit shown A = V2 / V1, is:
The Bode plot for the circuit shown A = V2 / V1, is:
Which one is the highest input impedance?
Which one is the highest input impedance?
A differential relay designed to protect a zone of the distribution system uses current transformers (CTs) connected to annual CTs. If the values do not match, which of the following is the least likely outcome?
A differential relay designed to protect a zone of the distribution system uses current transformers (CTs) connected to annual CTs. If the values do not match, which of the following is the least likely outcome?
A biomedical signal is sampled at 128Hz, no anti-aliasing filter is used. Spectral analysis on the sampled data shows strong signals. The most likely source of the 58 Hz component is:
A biomedical signal is sampled at 128Hz, no anti-aliasing filter is used. Spectral analysis on the sampled data shows strong signals. The most likely source of the 58 Hz component is:
A system with an initial cost of 90000 dollars has an operating cost of 2.50 dollars per hour and is operated 16hr/day for 300 days/year. After 10 years, what is the total analyzed cost over the 10-year life?
A system with an initial cost of 90000 dollars has an operating cost of 2.50 dollars per hour and is operated 16hr/day for 300 days/year. After 10 years, what is the total analyzed cost over the 10-year life?
Which engineering discipline would be best suited to manage the construction of a natural gas pipeline?
Which engineering discipline would be best suited to manage the construction of a natural gas pipeline?
When an activity network is developed using forward and backward passes, what can be determined?
When an activity network is developed using forward and backward passes, what can be determined?
Two tower antennas with height of 90 meters, what is the maximum distance between them for good communication?
Two tower antennas with height of 90 meters, what is the maximum distance between them for good communication?
Why is steel used in concrete structures?
Why is steel used in concrete structures?
An engineer is offered some additional gifts and services in exchange for using superior materials on a remodeling project, which was not detailed in the contract. What should he do?
An engineer is offered some additional gifts and services in exchange for using superior materials on a remodeling project, which was not detailed in the contract. What should he do?
You are a project manager for a company that supplies parts to the government. Part of your budget plan shows an average cost that can reduce move units. What theory describes the rationale for budget planning?
You are a project manager for a company that supplies parts to the government. Part of your budget plan shows an average cost that can reduce move units. What theory describes the rationale for budget planning?
The extensive use of gypsum wallboard in construction is attributed to all the following characteristics except:
The extensive use of gypsum wallboard in construction is attributed to all the following characteristics except:
Which of the following is not considered to be a characteristic of a project?
Which of the following is not considered to be a characteristic of a project?
The equivalent circuit of an induction machine at no load is the same as that of a transformer but with:
The equivalent circuit of an induction machine at no load is the same as that of a transformer but with:
The interdisciplinary nature of engineering has implications for the appropriateness of specialization. Which statement is correct?
The interdisciplinary nature of engineering has implications for the appropriateness of specialization. Which statement is correct?
In a typical computer architecture, what is the minimum set of registers necessary for general operation?
In a typical computer architecture, what is the minimum set of registers necessary for general operation?
A basic Time Domain Reflectometer (TDR) system with an oscilloscope displays the waveform at the input end of a line in a Non-Return Zero (NRZ) digital system. A 1000m cable is terminated with a short circuit at the far end. The first reflected wave appears 9.43μs after the incident wave. The actual velocity in the cable divided by the speed of light is:
A basic Time Domain Reflectometer (TDR) system with an oscilloscope displays the waveform at the input end of a line in a Non-Return Zero (NRZ) digital system. A 1000m cable is terminated with a short circuit at the far end. The first reflected wave appears 9.43μs after the incident wave. The actual velocity in the cable divided by the speed of light is:
The maximum power in a synchronous machine is obtained when the load angle is:
The maximum power in a synchronous machine is obtained when the load angle is:
Increasing the water-cement ratio in concrete mix results in:
Increasing the water-cement ratio in concrete mix results in:
The frequency of the voltage waveform generated by an alternator having 4 poles and rotating at 750 RPM will be:
The frequency of the voltage waveform generated by an alternator having 4 poles and rotating at 750 RPM will be:
Which of the following braking systems is used in the induction motor?
Which of the following braking systems is used in the induction motor?
When an induction motor runs at synchronous speed, the torque will be:
When an induction motor runs at synchronous speed, the torque will be:
Breaking of induction motor can be classified as:
Breaking of induction motor can be classified as:
The noise margins of an inverter with VOH=3V, VH=2V, VOL=0.5V, VIL=0.8V is:
The noise margins of an inverter with VOH=3V, VH=2V, VOL=0.5V, VIL=0.8V is:
Which of the following situations requires a change order?
Which of the following situations requires a change order?
What is the maximum phase-to-phase voltage for an induction motor in the figure?
What is the maximum phase-to-phase voltage for an induction motor in the figure?
In a 3-phase balanced system with Irms = 60A and 3rd harmonic phase current of 3A, what will be the neutral current?
In a 3-phase balanced system with Irms = 60A and 3rd harmonic phase current of 3A, what will be the neutral current?
In Ohm's Law, current is related to:
In Ohm's Law, current is related to:
___ activities must be completed immediately before a particular activity.
___ activities must be completed immediately before a particular activity.
Value engineering has the purpose of:
Value engineering has the purpose of:
In a 3-phase system, what is the neutral?
In a 3-phase system, what is the neutral?
The output D in the circuit is:
The output D in the circuit is:
Which circuit breaker is commonly used at the distribution level?
Which circuit breaker is commonly used at the distribution level?
The equivalent circuit of an induction machine at no load is the same as that of a transformer but with:
The equivalent circuit of an induction machine at no load is the same as that of a transformer but with:
The electric flux passing out through a closed surface is equal to:
The electric flux passing out through a closed surface is equal to:
What is the minimum gauge size of the earthing cable?
What is the minimum gauge size of the earthing cable?
Field programmable gate arrays (FPGAs) and other array logic devices normally contain numerous flip-flops. These flip-flops are generally of which type?
Field programmable gate arrays (FPGAs) and other array logic devices normally contain numerous flip-flops. These flip-flops are generally of which type?
A discrete silicon semiconductor diode is forward biased at 0.75V, what is the approximate current?
A discrete silicon semiconductor diode is forward biased at 0.75V, what is the approximate current?
The motor used in a traveling crane is:
The motor used in a traveling crane is:
Your boss has just approved the initiation of a project to celebrate Qatar National Day. As the project manager, what should you do?
Your boss has just approved the initiation of a project to celebrate Qatar National Day. As the project manager, what should you do?
In general, when comparing BJT and MOSFET transistors, which statements are true?
In general, when comparing BJT and MOSFET transistors, which statements are true?
In a 50Hz induction machine, if the no-load speed is 2900 RPM, what is the slip frequency?
In a 50Hz induction machine, if the no-load speed is 2900 RPM, what is the slip frequency?
Changing the excitation in a grid having an alternator connected to it will have the following effect:
Changing the excitation in a grid having an alternator connected to it will have the following effect:
Which of the following systems uses Assembly language?
Which of the following systems uses Assembly language?
Which of the following is based on Ohm's Law?
Which of the following is based on Ohm's Law?
What is the bond for the attraction of a water molecule?
What is the bond for the attraction of a water molecule?
If the rotor is in a standstill position, what is slip?
If the rotor is in a standstill position, what is slip?
An architect visits the site and finds the gypsum installation ongoing is of very low grade. What immediate action should he take?
An architect visits the site and finds the gypsum installation ongoing is of very low grade. What immediate action should he take?
If the motor is running with a very heavy load and suddenly the mechanical load is reduced to zero, what will be the effect on the motor?
If the motor is running with a very heavy load and suddenly the mechanical load is reduced to zero, what will be the effect on the motor?
What is the theory of utilitarianism?
What is the theory of utilitarianism?
What would an initial investment of 1 million QR be after 5 years if the APR = 9% accumulated monthly?
What would an initial investment of 1 million QR be after 5 years if the APR = 9% accumulated monthly?
Which of the following is not an opportunity to do the project?
Which of the following is not an opportunity to do the project?
100 resistors of 100 ohm each are connected in parallel. Their equivalent resistance will be:
100 resistors of 100 ohm each are connected in parallel. Their equivalent resistance will be:
Cut-off frequency in a transistor is defined by:
Cut-off frequency in a transistor is defined by:
The third harmonic of the Fourier series for the waveform in the figure has a frequency (Hz) of:
The third harmonic of the Fourier series for the waveform in the figure has a frequency (Hz) of:
Major factors to be considered while designing a distribution system include:
Major factors to be considered while designing a distribution system include:
Which one of the following is not an insulating material?
Which one of the following is not an insulating material?
Resource leveling usually results in:
Resource leveling usually results in:
Concepts of resource leveling work by:
Concepts of resource leveling work by:
The starting capacitor of a single-phase motor is:
The starting capacitor of a single-phase motor is:
What is the role of ABET (Accreditation Board for Engineering & Technology)?
What is the role of ABET (Accreditation Board for Engineering & Technology)?
What does the power factor stand for?
What does the power factor stand for?
Strain unit is:
Strain unit is:
What is the function of the barometer?
What is the function of the barometer?
Study Notes
Electrical/Electronic Engineering Concepts
- Alternator Excitation: An alternator is over-excited when operating at a leading power factor.
- Synchronous Motor: A synchronous motor is considered over-excited when operating at a leading power factor.
- Micro Antenna: Refers to a short antenna design used for communication needs.
- Fast Track Scheduling: Primarily used to guarantee project costs before construction begins.
- Harvard Architecture: Characterized by separate code and data memory spaces.
- Magnetic Force: The force on a moving charge in a magnetic field is always perpendicular to the field direction.
- Conductance Unit: Measured in mhos (or siemens).
- ABET: Stands for Accreditation Board for Engineering and Technology.
- Transfer Function Phase Shift: At very high frequencies, the phase shift can be -90°.
- Fourier Series: The third harmonic's frequency can vary significantly based on the waveform in question.
- Transmission Line Wires: The wire at the top is typically a ground wire, not a phase or neutral wire.
- Three-Stage RF Amplifier: The total noise figure for a specific amplifier configuration can be calculated based on the stages involved.
- Automobile Factory Design: Mechanical Engineers are best suited for designing and operating automobile factories.
- Leakage Flux: Refers to flux that does not contribute to the operation of the circuit, different from the mutual flux.
- Fast Tracking in Projects: Means commencing the project before designs are fully complete.
- Combination of Resistors: Can be arranged to achieve specific effective resistance values, such as 4Ω.
- Temperature Sensors: Operate linearly, with output voltage correlating to temperature measured.
- Parallel Transformer Operation: Requires correct polarity, equal voltage and frequency ratings, and equivalent impedance.
- NOR Gate Logic: Outputs a high signal only when all inputs are low.
- Digital Telecommunication: Connection-oriented services like ATM provide reliable data transmission.
- AM Modulation: The standard commercial technique is DSB-LC (Double Sideband Amplitude Modulation).
- NMOS Inverter Biasing: A small W/L ratio is preferred for switch functionality.
- Real-Time Kernel: An effective real-time operating system should focus on task scheduling and dispatching.
- Signal Bandwidth Classification: Using bandwidth BW of 2kHz corresponds typically to voice grade HF signals.
- Induction Motors Slip: At no load, slip is usually less than 1%, while medium-sized induction motors average around 4%.
- Procurement Delays: A delay of 2 days in material procurement can directly impact project completion timelines.
- Over-Excited Alternator: Leads to a leading power factor scenario.
- Input Impedance of Cascade Amplifiers: Similar to the input impedance of the preceding stage.
- Induction Motor Torque at Synchronous Speed: Results in zero torque.
- Power Factor Definition: Represents the cosine of the angle between voltage and current.
- Minimum Earth Cable Size: Standard gauge size is often 16 SWG.
- DC Offset Removal: Best achieved using a high-pass filter.
- Forward Biasing: Requires the anode to be at a higher voltage than the cathode.
- Transformer Resistivity: High voltage windings typically have higher resistance compared to low voltage.
- Amplifier Gain: An amplifier's gain is maximized in the active region.
- MOSFET Classification: A specific type of transistor.
- Loading Effects: Minimizing these effects often requires careful selection of circuit components and configurations.
- Alternator Efficiency: Factors such as armature losses significantly impact efficiency on no-load conditions.
- Transformer Saturation: Affects efficiency and no-load losses.
- Output Impedance: For cascaded amplifiers, a low output impedance helps minimize loading effects.
- Uninterruptible Power Supply Connection: Must be parallel to feed electrical power at critical times.
- Neutral Line Function: Serves as the return path for fault currents in a three-phase system.
- New Work Scope Actions: Engaging with management before accepting and proceeding is crucial for new project scopes.
- Active Filters: Serve multiple functions, including filtering and amplification.
- Embedded Systems: Should aim for optimal dynamic response characteristics.
- Amplifier Gain without Feedback: Can be determined from the feedback amount applied.
- Transformer Humming: Mainly caused by vibrations in core laminations.
- Calculated Power: For the given circuit, wattage calculations involve complex impedance assessments.
- Transmission Line Reflections: Performance can be analyzed based on reflected wave characteristics in conjunction with cable parameters.
- AMP Classification: Various methods and circuitry are defined to enhance AM receiver performance.
- Project Management Skills: Involves overseeing unique and non-repetitive tasks along with maintaining technical acumen.
- Current Flow: Magnetic field intensity around a conductor is determined by current flow and distance from the conductor.
- Braking Methods in Motors: Include dynamic, regenerative, and plugging techniques.
- Final Review Processes: Important for confirming alignment with all requirements before project approvals.
- Cascade Amplifiers: Impedance consideration is critical at both input and output stages to reduce loading effects.
- Signal Magnitude Assessments: Voltage sources produce different current levels based on resistance configurations.
- Transformer Analysis: Open circuit tests provide insight into core losses and efficiency metrics.
- Electric Flux: Related to the net charge enclosed within a closed surface.
- Projected Power Ratings: Calculated based on voltage variation demands and load conditions.
- Cable Insulation Standards: Must reflect environmental conditions and voltage requirements.
- Wave Speed in Cables: Calculated based on signal return time and cable length.
These notes encapsulate essential ideas and principles relevant to Electrical and Electronic Engineering, providing a solid foundation for further study and comprehension.### Electrical Engineering Concepts
- Electrode Associations: Transition from anion to cation occurs at the positive electrode, while cation to anion transition occurs at the negative electrode.
- Activity Arrows: Dummy activities can help prevent precedence problems that arise from parallel or merge activities.
- Average Signal Value: For the function v(t) = 5 sin(377t), the average value is calculated as Vavg = 2Vm / π, resulting in approximately 3.2V.
Transformers and Impedance
- Transformer Ratings: A 3-phase transformer rated at 25MVA, with an impedance of 8%, converts its per unit impedance to 0.32 when referenced to a 100 MVA system.
- Capacitance for Power Factor Correction: A 3-phase capacitor can provide reactive power adjustments based on its rated voltage and current specifications.
Measuring Instruments and Testing
- Voltmeter Resistance: A DC voltmeter with a coil resistance of 150Ω and sensitivity of 10,000Ω/V requires additional series resistance of 1MΩ to measure up to 100V.
- Electronic Testing: Integration testing is critical in software lifecycle management, ensuring modules function together correctly in both top-down and bottom-up testing methodologies.
Motor Usage and Performance
- Synchronous Motors: These devices can operate with a leading power factor; however, when not driving a load, they are known as synchronous condensers.
- Induction Motor Specifications: For a 3-phase induction motor with specific load characteristics, line current calculations reveal phase current values, influencing overall load management.
Project Management
- Scope Definition: The first step in defining a project scope is identifying major customer objectives, which is essential for project success.
- Project Life Cycle: Stages include initiation, planning, execution, and delivery/closure, each crucial to project success.
Electrical Parameters and Calculations
- Power Gain: A power gain of 30dB translates to an amplification factor of 1000.
- Channel Capacity: Calculating channel capacity involves the signal-to-noise ratio and bandwidth, which can be determined using Shannon's theorem.
Circuit Elements and Configurations
- Resistor Configurations: Two resistors combined in series yield a higher resistance than in parallel configurations. Example calculations indicate specific resistance values based on combined resistance formulas.
- Harmonics and Load Types: Various loads, including variable impedance, power electronics, and saturable magnetic loads, contribute to harmonics within a system.
Signal Processing and Filtering
- Low-Pass Filters: Designed to stop high frequencies while allowing low frequencies to pass through.
- Harmonic Sources: Identified sources of harmonics in electrical systems and their impact on signal quality.
General Engineering Principles
- Voltage and Current Regulation: Understanding voltage regulation principles, including how it varies with the nature of the load, is crucial for designing stable electrical systems.
- Circuit Components: The functionality of diodes, BJTs, and capacitors is fundamental in circuit design, influencing overall system performance and stability.
These notes capture key facts and concepts integral to electrical and electronic engineering, aiding in the study and understanding of complex topics.### Arithmetic Multiplication Challenges in HDL
- Arithmetic multiplication in hardware description languages (HDLs) is challenging to synthesize effectively.
- Solutions for this challenge exclude certain methods, such as:
- Sequential generation of partial products.
- Hardware intensive simultaneous generation of partial products.
- Implementation of Booth's algorithm to minimize partial product generation.
- Sequential right shifts of the arguments.
OP-AMP Amplifiers
- Inverting amplifier input impedance is zero.
- Non-inverting amplifier input impedance is infinity.
- Inverting amplifier output impedance is zero.
- Non-inverting amplifier output impedance is also zero and has a relative forward resistance.
- Non-inverting amplifiers typically demonstrate high input and low output impedance characteristics.
Circuit Breakers
- Common circuit breakers used at the distribution level include:
- Air Circuit Breaker
- Air Blast Circuit Breaker
- SF6 Circuit Breaker
- Tank Type Oil Circuit Breaker
Transistor Comparisons: BJT vs. MOSFET
- BJT relies heavily on geometry for performance.
- MOSFET is capable of greater amplification than BJT.
- MOSFET features zero input current, implying minimal power dissipation at its input.
Data Network Characteristics
- Packet-switched networks include:
- Transmitted packets that contain source/destination addresses and error control bits.
- Individual packets routed via different paths.
- Packet-switched networks do not transmit packets containing only information bits.
Nyquist Sampling Theorem
- The highest frequency in a signal must be less than half of the sampling frequency to avoid aliasing.
Decibel Calculation
- Doubling the power results in a 3 dB increase.
Frequency Division Multiplexing (FDM)
- In optical communication, FDM is referred to as Wavelength Division Multiplexing (WDM).
Total Quality Management (TQM)
- TQM stands for Total Quality Management.
Eliminating Intersymbol Interference
- Intersymbol interference can be eliminated using the Nyquist Criterion.
Material States
- Mercury (Hg) is a liquid at room temperature among commonly known materials.
Alternator Power Factor
- The power factor of an alternator is influenced by its excitation level.
Reliability Calculations
- For two components with individual reliabilities, the combined reliability can be calculated using R1 + R2 - (R1 * R2).
Resistance and Voltage Relationships
- The relationship between current and gradually varied resistance can be represented graphically.
Interdisciplinary Skills for Engineers
- Engineers benefit most from being well-trained in multiple engineering fields rather than just one.
Induction Machine
- For a 50 Hz induction machine with a no-load speed of 2900 RPM, the slip frequency can be calculated using established formulas.
Filtering Components
- The I/P side of the GSM network typically contains a band-pass filter.
Power Consumption reduction in Embedded Systems
- Techniques to reduce power consumption include pipelining, voltage sensing, and parallelizing.
Digital Signal Processor (DSP) Requirements
- A fixed point multiplier with a 16-bit data path is most cost-effective for a DSP designed for FFT operations.
Fan-Out in Logic Gates
- Fan-out is defined as the number of gates connected to the output of a logic gate.
Project Management
- Project scheduling involves breaking down tasks and estimating the time and resources required for each.
Work Breakdown Structure (WBS)
- The highest element in WBS is the project itself, while the lowest is the work package.
Oscillator Circuit and Resonance
- The oscillator circuit uses series resonant modes of the crystal component.
Investment Worth Calculation
- Investment worth after five years can be calculated using APR rates and specific formulas.
Sustainability in Engineering
- Important components of sustainability include economic, social, and environmental factors.
Measurement of Potential Difference
- A voltmeter is used to measure potential difference in circuits.
Superposition Principle
- Superposition applies to circuits with independent sources only, excluding dependent sources.
Health of an Instrument
- Regular calibration is necessary to ensure an instrument's accuracy and prevent drift over time.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Related Documents
Description
Test your knowledge on electrical and electronic engineering concepts with this comprehensive quiz. Questions cover topics such as alternators, synchronous motors, and micro antennas, challenging your understanding of power factors and operational states. Perfect for students and professionals preparing for engineering exams.
