26208 & 26210 Circuit Breaker & Fuses PDF

Name: ID: 26208 Conductor Installations Set Work Q01: Write the correct term for the definition below: _______________: A component used to terminate a conductor, connected to the wire through various methods and equipped...

Name: ID: 26208 Conductor Installations Set Work Q01: Write the correct term for the definition below: _______________: A component used to terminate a conductor, connected to the wire through various methods and equipped with a means of attaching it to a terminal with hardware such as a machine screw or bolt. __________: Electromechanical connections between two or more conductors. ________: The maximum current that a lug can safely handle at its rated voltage. ___________: The metal covering of a cable that reduces the effects of electromagnetic noise. _______________: Adhesive tape that has been manufactured from a nonconductive material and is specifically designed for covering energized wire joints and exposed parts. Q02: How does heat-shrink tubing provide insulation when heat is applied? __________________________________________________________________________. Q03: How should automatic strippers be used? __________________________________________________________________________. Q04: When should stripped wire be terminated? __________________________________________________________________________. Q05: Complete this sentences? *........................... is the positioning of the cable so that it is not under tension. * The Conductor should be labeled before................. * When we connect dissimilar metals ( conductors) its causes................ *........................ electrical connections are responsible for a large percentage of equipment burnouts and fire. * Mechanical compression Connectors requires....................... _________________________________________________________________________. Q06: What is the purpose of a heavy-duty stripper? ……………………………………………………………………… ……………………………………………………………………….. Q07: Are this statements True or false? 1. A dull knife blade is more dangerous than sharp blade.[True/False] 2. AWG 22 and larger wires requires normal crimping tool. [True/False] 3. Color code the barrel insulation helps in quick identification and Inspection. [True/False] 4. Compression type connectors are used for Low voltage circuits. [True/False] 5. If the conductor wire is aluminum the connector should be copper only. [True/False] 6. Before installing conductor in the connector, use of oxide inhabiting compound is recommended. [True/False] 7. Crimping tool is used to Cut the Wire. [True/False] 8. When installing wires in a common screw type terminal block only 02 terminals are permitted at any one terminal point. [True/False] 9. Control and signal cables must meet NEC® requirements, local codes, and equipment manufacturer requirements. [True/False] 10. Fire alarm, instrumentation, and control cables carry less current than power cables. [True/False] 11. Avoid sharp edges as you route cables and conductors. [True/False] Q08: Choose the one alternative that best completes the statement or answers the question. 1) Instrument and control cables normally requires wire from range............AWG. A) 1 to 3 B) 4 to 5 C) 12 to 24 D) None of them 2) The ratio of output to the input force is called..... A) hydraulic Leverage B) Torque C) Mechanical Force D) Mechanical Advantage The final step of crimping procedure is an...................... the termination. A) inspecting B) Spicing C) Cutting D) None of 3) What tool is used to strip large conductors? A) Scissor-action cutter B) Pliers C) Handheld ratcheting cable cutter D) Wrench 4) When should the blade of a stripping tool be replaced? A) When it’s working perfectly B) When it is too sharp C) When it becomes dull D) None of the above 5) What should be done to all cables to prevent strain? A) Place insulation B) Bend terminals 45° C) Support cables D) None of the above 6) Why should incoming lines to line lugs be braced? A) To reduce bending B) To withstand mechanical force from high fault current C) To prevent short circuits D) None of the above 7) What should you do when using a stripping tool? A) Use dull blades B) Keep fingers away from the blade C) Apply more pressure D) None of the above Q08: Identify name of the tool in the picture. Q09: Which type of cable cutter is in the Picture. Q10: Which type of connector is in the picture. Q11: Select the name of the (X) parts showing Black color. Q12: Identify the name of the tool Q13: Which tool is used to tight the bolts in the picture. Q14: is this termination acceptable? Q15: Which type of terminal box is this Q16: Termination is perfect In the picture below, is termination A perfect? Q17: The Termination looks perfect? Name: ID: 26210 Circuit Breaker & Fuses Set Work Q01: Answer the following questions? 1) What is an overload current? ……………………………………………….. 2) What is a short circuit? ……………………………………………….. 3) What creates a ground fault? 4) ……………………………………………….. 5) How much higher than normal can overload currents reach? ……………………………………………….. 6) What is the purpose of overcurrent protection? ……………………………………………….. 7) What term describes the current during an unintended path between ungrounded conductor and ground? ……………………………………………….. 8) Circuit breakers are classified based on what groupings? ……………………………………………….. 9) For what types of current can circuit breakers be rated? ……………………………………………….. 10) What must be included in the markings of the circuit breaker and fuse enclosures? ……………………………………………….. 11) When does a fault current exist? ……………………………………………….. 12) Which type of circuit breaker requires manual activation? ……………………………………………….. 13) Which circuit breaker type is designed to disconnect a circuit when detecting unintended arcs? ……………………………………………….. 14) What kind of device is a 'cartridge fuse'? ……………………………………………….. 15) According to general guidelines, what is the selecting factor for the amp rating of a fuse and switch combination? ……………………………………………….. 16) What is a primary consideration for appropriate fuse operation? ………………………………………………..  17) Before making changes to an overcurrent device what should always ensure? ……………………………………………….. 18) What happens to a device if an extreme fault current exceeds its interrupting rating? ……………………………………………….. 19) Which of the following can lead to an overcurrent condition in a circuit? ……………………………………………….. 20) What does the “interrupting rating” of a circuit breaker refer to? ……………………………………………….. 21) Which type of circuit breaker is used to protect against both overloads and ground faults? ……………………………………………….. Q02: Are this statements True or false? 22) A plug fuse includes GFCI capabilities. A) True B) False 23) Overcurrent protection devices are designed to prevent excessive current from damaging conductors and equipment. A) True B) False 24) A circuit breaker only trips when there is a short circuit but does not respond to overloads. A) False B) True 25) Fuses must be replaced after they operate, unlike circuit breakers that can be reset. A) False B) True 26) A fuse works by melting a metal link inside when current exceeds its rated value, breaking the circuit. A) False B) True 27) Circuit breakers provide both overcurrent protection and allow manual switching of the circuit. A) True B) False 28) Overcurrent can be caused by both short circuits and overload conditions. A) True B) False 29) Fuses generally react more quickly than circuit breakers. A) False B) True 30) The current rating determines the maximum safe operating current. A) True B) False Q08: Choose the one alternative that best completes the statement or answers the question. 31) What happens to the components of fuses when subjected to current beyond their rating? 1) A) They convert excess current to heat energy. B) They melt and cut the current C) They recharge automatically. D) A) They become stronger 32) What are the three operation types of circuit breakers? A) Manual, mechanical, and digital B) Thermal, magnetic, and thermomagnetic C) Low, medium, and high voltage D) Single-phase, two-phase, and three-phase 33) What element of a circuit breaker defines its ability to safely interrupt maximum short circuit current? A) Handle trip position B) Voltage rating C) Amperage interrupting capacity (AIC) D) Continuous current rating 34) What will trigger a GFCI to automatically open the circuit? A) A difference of more than 6 mA B) A circuit overload by 10 amp C) A power surge above 500 volts D) An electrical short-circuit 35) What is a 'molded-case circuit breaker'? A) A breaker that automatically resets itself B) A breaker designed for outdoor use C) A circuit breaker enclosed in an insulating housing D) A breaker with interchangeable parts 36) What causes a fuse to blow or a circuit breaker to trip? A) Low resistance B) Overcurrent or short circuit C) Under-voltage D) High voltage 37) What does an overcurrent protection device primarily protect in a circuit? A) Energy efficiency B) Power factor correction C) The voltage level D) Electrical wiring and components 38) What type of circuit breaker is used in residential applications? A) Miniature Circuit Breaker (MCB) B) Residual Current Device (RCD) C) none D) Molded Case Circuit Breaker (MCCB) 39) Which type of overcurrent condition occurs when the electrical load exceeds the capacity of the circuit but does not involve a direct fault to ground? A) Ground fault B) Short circuit C) Overload D) Open circuit Q08: Identify name of the tool in the picture.