Podcast
Questions and Answers
- Polarity is a term used to best describe from which of the following?
- Polarity is a term used to best describe from which of the following?
- direction of the AC current flow.
- b) distance between electrodes.
- c) dangerous magnetic field caused by high voltage welding current.
- d) direction of the DC current flow. (correct)
- What measures are taken when the oil pressure fluctuates?
- What measures are taken when the oil pressure fluctuates?
- a) Check the engine oil level and send out a sample for analysis
- b) Check the engine oil level and check pressure with manual gauge (correct)
- c) Remove the oil pan and test the oil pump and inlet assembly
- d) Check the engine oil level then test the engine oil sensor
- What will cause an onboard diagnostic vehicle's malfunction indication light to flash?
- What will cause an onboard diagnostic vehicle's malfunction indication light to flash?
- a) Cylinder misfire (correct)
- b) loose gas cap
- c) indication of a pending trouble code
- d) Vehicle is due for maintenance
When a valve being removed from a cylinder head starts to bind as the tip reaches the guide, which of the following should be performed?
When a valve being removed from a cylinder head starts to bind as the tip reaches the guide, which of the following should be performed?
- If a cooling system operates at too cool an operating temperature, the engine will do which of the following?
- If a cooling system operates at too cool an operating temperature, the engine will do which of the following?
- Air loss in a straight truck or bus with the engine off and brakes engaged should not exceed what number?
- Air loss in a straight truck or bus with the engine off and brakes engaged should not exceed what number?
- What is the most common reason of a transaxle jumping out of gear while under load?
- What is the most common reason of a transaxle jumping out of gear while under load?
- An hour of inactivity makes it difficult to start a car with port injection. A fuel pressure test reveals that the fuel pressure is normal, but drops rapidly to nothing when the engine is shut off. What causes this disorder?
- An hour of inactivity makes it difficult to start a car with port injection. A fuel pressure test reveals that the fuel pressure is normal, but drops rapidly to nothing when the engine is shut off. What causes this disorder?
- Which of the following methods corrects a ring-and-pinion gear arrangement with excessive flank contact?
- Which of the following methods corrects a ring-and-pinion gear arrangement with excessive flank contact?
- What may be used to repair a damaged wire and create a watertight connection?
- What may be used to repair a damaged wire and create a watertight connection?
- A sensor that communicates temperature information to a body computer, such as an ambient air temperature sensor for air conditioning, is a?
- A sensor that communicates temperature information to a body computer, such as an ambient air temperature sensor for air conditioning, is a?
- The oxygen cylinder's valves must be opened
- The oxygen cylinder's valves must be opened
- Which of the following would not result in a change in vent temperature when switching the thermostat from hot to cold?
- Which of the following would not result in a change in vent temperature when switching the thermostat from hot to cold?
- What will happen to compressed gas in a confined space?
- What will happen to compressed gas in a confined space?
- After the windshield wiper switch has been switched off, which of the following cannot prevent the windshield wipers from stopping in the "park" position?
- After the windshield wiper switch has been switched off, which of the following cannot prevent the windshield wipers from stopping in the "park" position?
- When fixing air bag systems, impact (discrimination) or safety (arming) sensors may be measured using an ohmmeter.
- When fixing air bag systems, impact (discrimination) or safety (arming) sensors may be measured using an ohmmeter.
- How should the crankshaft harmonic balancer be removed?dumper
- How should the crankshaft harmonic balancer be removed?dumper
- How is an ammeter connected to a circuit for testing?
- How is an ammeter connected to a circuit for testing?
- It is 737 kilometres from Toronto to Ottawa. The truck driver travelled at one pace for the first 100 kilometres before increasing it by 5 kilometres per hour for the remainder of the journey. If the initial speed was 90 kilometres per hour, what would be the entire journey time in hours?
- It is 737 kilometres from Toronto to Ottawa. The truck driver travelled at one pace for the first 100 kilometres before increasing it by 5 kilometres per hour for the remainder of the journey. If the initial speed was 90 kilometres per hour, what would be the entire journey time in hours?
- How frequently should the air tanks on a vehicle that is driven on the highway be drained?
- How frequently should the air tanks on a vehicle that is driven on the highway be drained?
- What effect would a leaky motor check valve have on the performance of a reversible gear motor?
- What effect would a leaky motor check valve have on the performance of a reversible gear motor?
- Standard hardware and prepackaged bearings?
- Standard hardware and prepackaged bearings?
- On the drawing below, which of the following is this component on an ignition system?motor
- On the drawing below, which of the following is this component on an ignition system?motor
- Typically, the piston ring end gap is around 0.004 inch?
- Typically, the piston ring end gap is around 0.004 inch?
- During a driving test after the installation of new brake linings, what do you check for?hard
- During a driving test after the installation of new brake linings, what do you check for?hard
- A vehicle is equipped with a Malfunction Indicator Lamp (MIL). The light has been glowing for the previous four days without affecting the vehicle's drivability. What diagnostic actions must be performed after installing a scan tool?
- A vehicle is equipped with a Malfunction Indicator Lamp (MIL). The light has been glowing for the previous four days without affecting the vehicle's drivability. What diagnostic actions must be performed after installing a scan tool?
- Which of the following are the right procedures for charging a battery?
- Which of the following are the right procedures for charging a battery?
- What occurs when the resistance of the coolant temperature sensor (ECT) falls below 1000 ohms?eaner
- What occurs when the resistance of the coolant temperature sensor (ECT) falls below 1000 ohms?eaner
- Force as a vector has which of the following characteristics?magnitude
- Force as a vector has which of the following characteristics?magnitude
- In relation to radiator cores, they are made from sheet brass or which of the following?
- In relation to radiator cores, they are made from sheet brass or which of the following?
- A vehicle passed the pressure test but failed the evaporative purge flow test during an improved I/M test. There were no Diagnostic Trouble Codes registered. While driving with the throttle wide open, the scan tool shows that the evaporative emissions control solenoid has been activated. What caused the test failure?
- A vehicle passed the pressure test but failed the evaporative purge flow test during an improved I/M test. There were no Diagnostic Trouble Codes registered. While driving with the throttle wide open, the scan tool shows that the evaporative emissions control solenoid has been activated. What caused the test failure?
- You are doing maintenance on a trailing arm suspension with coil-over shocks. What steps are required to replace the shocks?
- You are doing maintenance on a trailing arm suspension with coil-over shocks. What steps are required to replace the shocks?
- What signals may be used to alert drivers that a stopped vehicle has explosives?
- What signals may be used to alert drivers that a stopped vehicle has explosives?
- What is the most dependable sign that a variable displacement hydraulic pump is malfunctioning?drain flow
- What is the most dependable sign that a variable displacement hydraulic pump is malfunctioning?drain flow
- Where may the coolant flow from on a leaking water pump?
- Where may the coolant flow from on a leaking water pump?
- The function of the fuel vapour return line is to return any vapour to the fuel tank.
- The function of the fuel vapour return line is to return any vapour to the fuel tank.
- When the car is started, the Air Bag Warning bulb will?
- When the car is started, the Air Bag Warning bulb will?
- How does a light-out warning system determine when a lamp has burnt out?
- How does a light-out warning system determine when a lamp has burnt out?
- How must a Weather Pack connection be repaired?
- How must a Weather Pack connection be repaired?
- Engine oil leaks are usually located by adding fluorescent dye to the oil and checking with which of the following?
- Engine oil leaks are usually located by adding fluorescent dye to the oil and checking with which of the following?
- During an alternator output test, the output is determined to be zero amps and the voltage to be 12 volts. The next step should be?
- During an alternator output test, the output is determined to be zero amps and the voltage to be 12 volts. The next step should be?
- What is the reason for an O2 sensor's constant output of 0.2 volts?winding
- What is the reason for an O2 sensor's constant output of 0.2 volts?winding
- In relation to a series circuit, which of the following is correct?
- In relation to a series circuit, which of the following is correct?
- Which solder is most suitable for electrical connections and bunch tinning of stranded conductors?
- Which solder is most suitable for electrical connections and bunch tinning of stranded conductors?
- Which of the following would cause a flapping sound near the front of the engine?
- Which of the following would cause a flapping sound near the front of the engine?
- Which of the following can fix a cylinder wall that is scored or fractured on a cast iron block
- Which of the following can fix a cylinder wall that is scored or fractured on a cast iron block
- Maximum leakage rates are?
- Maximum leakage rates are?
- Installing a master oil pressure gauge exposes a low oil pressure at idle and a lower-than-anticipated oil pressure at 2500 rpm. What is the difficulty?bearings
- Installing a master oil pressure gauge exposes a low oil pressure at idle and a lower-than-anticipated oil pressure at 2500 rpm. What is the difficulty?bearings
- Who activates Powershift P.T.O.s?
- Who activates Powershift P.T.O.s?
- Which of the following would cause an engine to run at a temperature that is too high?
- Which of the following would cause an engine to run at a temperature that is too high?
- Which of the following is the primary function of anti-lock brakes?
- Which of the following is the primary function of anti-lock brakes?
- Which of the following knots is used to affix two lines of the same diameter together so that they do not slip?
- Which of the following knots is used to affix two lines of the same diameter together so that they do not slip?
- When approaching a railroad crossing, the bus must halt between? and?
- When approaching a railroad crossing, the bus must halt between? and?
- Which of the following should be sprayed with Ether fluid during pressured fluid startup?
- Which of the following should be sprayed with Ether fluid during pressured fluid startup?
- How are restricted slip differentials identified?
- How are restricted slip differentials identified?
The safest and most effective method for using a wrench is by?
The safest and most effective method for using a wrench is by?
- Which of the steps below would a technician take to adjust bearing endplay on a transfer case?
- Which of the steps below would a technician take to adjust bearing endplay on a transfer case?
- All of the following are reasons why you must disable the fuel injection system and ignition system when conducting an engine compression test, except for which of the following?
- All of the following are reasons why you must disable the fuel injection system and ignition system when conducting an engine compression test, except for which of the following?
- What must cars with air brakes be equipped with?
- What must cars with air brakes be equipped with?
- How many crankshaft rotations will a four-stroke engine undergo?
- How many crankshaft rotations will a four-stroke engine undergo?
- What is the proper sequence for beginning system testing? starter draw.
- What is the proper sequence for beginning system testing? starter draw.
- After installing a replacement bearing, what should be done to test bearing clearance during final assembly?
- After installing a replacement bearing, what should be done to test bearing clearance during final assembly?
- Inadequate lubrication of wheel bearings will result in?
- Inadequate lubrication of wheel bearings will result in?
- Which of the following hydraulic system testing processes takes viscosity into account?
- Which of the following hydraulic system testing processes takes viscosity into account?
- When is a placard necessary for a flammable liquid?
- When is a placard necessary for a flammable liquid?
- Which of the following does the flywheel of an internal combustion engine maintain the smooth rotary motion?
- Which of the following does the flywheel of an internal combustion engine maintain the smooth rotary motion?
- Technician 1 says when the condenser airflow is restricted the pressure is high in both high and low lines. Technician 2 says an indication of low refrigerant is when both the high and low sides show low pressure. Which tech is correct?
- Technician 1 says when the condenser airflow is restricted the pressure is high in both high and low lines. Technician 2 says an indication of low refrigerant is when both the high and low sides show low pressure. Which tech is correct?
- If the multiple-disc holding clutch in an automatic gearbox fails, which statement is true?
- If the multiple-disc holding clutch in an automatic gearbox fails, which statement is true?
- Which of the following would reduce the heater core's output?
- Which of the following would reduce the heater core's output?
- Which of the following is a benefit of ceramic metal halide lamps in comparison to regular metal halide lamps?
- Which of the following is a benefit of ceramic metal halide lamps in comparison to regular metal halide lamps?
- How many amps must the feeder carrying two 1-1/2 horsepower, 230-volt, single-phase motors have a load current rating of?
- How many amps must the feeder carrying two 1-1/2 horsepower, 230-volt, single-phase motors have a load current rating of?
- You diagnose a car with a complaint of not starting. With an injector test light, an injector pulse is visible, but there is no spark at any ignition coil. Which element has failed?
- You diagnose a car with a complaint of not starting. With an injector test light, an injector pulse is visible, but there is no spark at any ignition coil. Which element has failed?
- The engine coolant temperature sensor has a resistance of 100,000 ohms at
-40°C and just 70 ohms at 130°What does this signifier
- The engine coolant temperature sensor has a resistance of 100,000 ohms at -40°C and just 70 ohms at 130°What does this signifier
- If a condenser fan were inoperative, what high-side and low-side pressure gauge readings would a technician find?
- If a condenser fan were inoperative, what high-side and low-side pressure gauge readings would a technician find?
- When the ride height of a car is too low, explains technician 1, the vehicle may pull to the side. Technician 2 asserts that ride height has no impact on front camber. Which technology is best?
- When the ride height of a car is too low, explains technician 1, the vehicle may pull to the side. Technician 2 asserts that ride height has no impact on front camber. Which technology is best?
- Typically, valve springs are inspected for squareness, free height, and which of the following characteristics?
- Typically, valve springs are inspected for squareness, free height, and which of the following characteristics?
- Which of the following is controlled by braking systems or retarders designed for endurance?
- Which of the following is controlled by braking systems or retarders designed for endurance?
- Which of the following safety precautions should be performed while bleeding the brakes on an air over hydraulic system?
- Which of the following safety precautions should be performed while bleeding the brakes on an air over hydraulic system?
- What should be done if the lubricant level in the differential, steering reservoir, or gearbox is very low?
- What should be done if the lubricant level in the differential, steering reservoir, or gearbox is very low?
- What will occur if the timing belt breaks on an overhead camshaft engine with free wheeling camshafts?
- What will occur if the timing belt breaks on an overhead camshaft engine with free wheeling camshafts?
- How should the frame and suspension be repaired?
- How should the frame and suspension be repaired?
- Reducing an engine's compression ratio decreases combustion temperature and what else?
- Reducing an engine's compression ratio decreases combustion temperature and what else?
- What sort of fuel-powered engines are often the most fuel-efficient?
- What sort of fuel-powered engines are often the most fuel-efficient?
- The alternator brush is supported by a?
- The alternator brush is supported by a?
- Which of the following is the freezing and boiling point of engine coolant measured with?
- Which of the following is the freezing and boiling point of engine coolant measured with?
- The engine is functioning at the right temperature, the lines to and from the heater core are hot, yet the car lacks heat. What is the source of the issue?
- The engine is functioning at the right temperature, the lines to and from the heater core are hot, yet the car lacks heat. What is the source of the issue?
- Which of the following processes prevents the SCR system from freezing in low-temperature environments?
- Which of the following processes prevents the SCR system from freezing in low-temperature environments?
- Which of the following must be performed in order to install piston rings?
- Which of the following must be performed in order to install piston rings?
- What causes recurring U-joint failure at low mileage?
- What causes recurring U-joint failure at low mileage?
- At 80 degrees Fahrenheit, a specific gravity between 1.170 and 1.190 suggests that a battery's level of charge is approximately?
- At 80 degrees Fahrenheit, a specific gravity between 1.170 and 1.190 suggests that a battery's level of charge is approximately?
- What do the mass air flow sensors utilised by the PCM (Engine Computer) measure?
- What do the mass air flow sensors utilised by the PCM (Engine Computer) measure?
- Torque is converted by the transmission system into which of the following?
- Torque is converted by the transmission system into which of the following?
- Which of the following most accurately describes M8 metric bolts?
- Which of the following most accurately describes M8 metric bolts?
- When the air conditioning system begins functioning regularly, the vent temperature gradually begins to rise. Which of the following is the most significant issue?
- When the air conditioning system begins functioning regularly, the vent temperature gradually begins to rise. Which of the following is the most significant issue?
- How should the oxygen sensor voltage respond to a vacuum leak?
- How should the oxygen sensor voltage respond to a vacuum leak?
- When removing the grease gun from a fitting after lubricating the lubrication joint, you should?
- When removing the grease gun from a fitting after lubricating the lubrication joint, you should?
- An engine with a significant connecting rod bearing failure. What modifications are made to the oil cooler during engine overhaul?
- An engine with a significant connecting rod bearing failure. What modifications are made to the oil cooler during engine overhaul?
- When the bore of an engine is enlarged, the displacement will rise, and the compression rate will do which of the following?
- When the bore of an engine is enlarged, the displacement will rise, and the compression rate will do which of the following?
- The pressure gun?
- The pressure gun?
- Which is more susceptible to tipping over when vehicles carrying trailers experience the crack the whip effect?
- Which is more susceptible to tipping over when vehicles carrying trailers experience the crack the whip effect?
- Which of the following is the proper method for doing circuit inspections on a computer-controlled engine?
- Which of the following is the proper method for doing circuit inspections on a computer-controlled engine?
- Which of the following is the right approach for testing the governor of a compressor?
- Which of the following is the right approach for testing the governor of a compressor?
- Which of the following is the given circle's radius?
- Which of the following is the given circle's radius?
- Which of the following would cause the steering wheel on an articulating steering system to revolve by itself?
- Which of the following would cause the steering wheel on an articulating steering system to revolve by itself?
- What is a hot-wire mass air sensor used for?
- What is a hot-wire mass air sensor used for?
- Which of the following is the right method for replacing a vehicle's hydraulically released, spring-applied park-brake actuator?
- Which of the following is the right method for replacing a vehicle's hydraulically released, spring-applied park-brake actuator?
- If a vehicle lacks power, you will also notice an odour emanating from underneath the vehicle and an orange-lit catalytic converter. What is the difficulty?
- If a vehicle lacks power, you will also notice an odour emanating from underneath the vehicle and an orange-lit catalytic converter. What is the difficulty?
- When is the manual valve to be used?
- When is the manual valve to be used?
- Which of the following is controlled by the oil pump relief valve?
- Which of the following is controlled by the oil pump relief valve?
- Voltage can be described best as which of the following?
- Voltage can be described best as which of the following?
- What must be done while rigging using a swivel Eyebolt?
- What must be done while rigging using a swivel Eyebolt?
- When the switch is triggered, the danger lights do not flash, but the signal lights function correctly. The identical light bulb is utilised in both circuits of this lighting system, therefore what may be causing this failure?
- When the switch is triggered, the danger lights do not flash, but the signal lights function correctly. The identical light bulb is utilised in both circuits of this lighting system, therefore what may be causing this failure?
- When codes are cleared or the battery is unplugged, a drive cycle should be conducted. What is the required method for completing the driving cycle?
- When codes are cleared or the battery is unplugged, a drive cycle should be conducted. What is the required method for completing the driving cycle?
- How can battery rust be removed?
- How can battery rust be removed?
- Which of the following is the least likely cause of a dim headlight?
- Which of the following is the least likely cause of a dim headlight?
- When the brake pedal (stop light switch) is pushed, the fuse blows. Technician A asserts that a short circuit exists before the switch and that a short finder is necessary. Technician B asserts that the short circuit is complete when the switch is closed and that it must be located after the switch. Who is right?
- When the brake pedal (stop light switch) is pushed, the fuse blows. Technician A asserts that a short circuit exists before the switch and that a short finder is necessary. Technician B asserts that the short circuit is complete when the switch is closed and that it must be located after the switch. Who is right?
- The TPS (Throttle Position Sensor) input is utilised to perform anything except the following.
- The TPS (Throttle Position Sensor) input is utilised to perform anything except the following.
- Which of the following conditions on an air brake system could cause high discharge of oil from the supply reservoir drain valve?
- Which of the following conditions on an air brake system could cause high discharge of oil from the supply reservoir drain valve?
- In relation to a Digital Multi-meter being used to measure DC voltage and is connected in parallel to the load device, which of the following defines the reading?
- In relation to a Digital Multi-meter being used to measure DC voltage and is connected in parallel to the load device, which of the following defines the reading?
- Low compression in two adjacent cylinders is often caused by which of the following?
- Low compression in two adjacent cylinders is often caused by which of the following?
- What two things must be noticed while testing the reaction of the fuel control system by causing a vacuum leak?
- What two things must be noticed while testing the reaction of the fuel control system by causing a vacuum leak?
- What is the name of the sensor that delivers speed information, such as a wheel speed sensor?
- What is the name of the sensor that delivers speed information, such as a wheel speed sensor?
- Which of the following holds the compressed air used in an air brake system?
- Which of the following holds the compressed air used in an air brake system?
- How is the charging system's warning bulb activated?
- How is the charging system's warning bulb activated?
- Which of the following would be the most probable reason why a driver abruptly loses control of a vehicle?
- Which of the following would be the most probable reason why a driver abruptly loses control of a vehicle?
- When should a ground-wire clamp be fitted on a prefabricated service mast?
- When should a ground-wire clamp be fitted on a prefabricated service mast?
- What is the right adjustment sequence for a carrier rear-axle final drive component that is removable?
- What is the right adjustment sequence for a carrier rear-axle final drive component that is removable?
- Which of the following is utilised to test the circuit's load?
- Which of the following is utilised to test the circuit's load?
- What is the right installation technique for a tire and wheel assembly?
- What is the right installation technique for a tire and wheel assembly?
- In respect to turbochargers that employ boost pressure to signal proper functioning, what units are used to quantify boost in the English System of Measurement?
- In respect to turbochargers that employ boost pressure to signal proper functioning, what units are used to quantify boost in the English System of Measurement?
- What is this graphic?
- What is this graphic?
- What is the right sequence of adjustments when repairing a power steering box with reciprocating balls?
- What is the right sequence of adjustments when repairing a power steering box with reciprocating balls?
- What is the primary function of the starter's overrunning clutch?
- What is the primary function of the starter's overrunning clutch?
- Which of the following forms of roller wear will occur while compacting gravel along a curb with a cylinder that is no wider than the tires?
- Which of the following forms of roller wear will occur while compacting gravel along a curb with a cylinder that is no wider than the tires?
- Which of the following claims about the gear assembly below is true
- Which of the following claims about the gear assembly below is true
- Which of the following will require an OFF-vehicle repair in relation to an electronically controlled 4-speed automatic transaxle and you notice a shock when shifting from N to D?
- Which of the following will require an OFF-vehicle repair in relation to an electronically controlled 4-speed automatic transaxle and you notice a shock when shifting from N to D?
the magnetic field necessary for motor starting must be supplied by?
the magnetic field necessary for motor starting must be supplied by?
- Which of these does not generate a digital signal?
- Which of these does not generate a digital signal?
- Which of these sensors detects engine load directly?
- Which of these sensors detects engine load directly?
- What might cause choppy engine idle and stalling in the EGR system?
- What might cause choppy engine idle and stalling in the EGR system?
- What does a dual air brake system consist of?
- What does a dual air brake system consist of?
which of the following may cause clutch slippage?
which of the following may cause clutch slippage?
- What does "TIG" stand for?
- What does "TIG" stand for?
- What should a driver do while descending a long, steep hill?
- What should a driver do while descending a long, steep hill?
- Which of the following is used to modify the height of the valve spring?
- Which of the following is used to modify the height of the valve spring?
- According to the safety code, which of the following is the minimum approach distance between a 100,000-volt electric line and a distribution mast?
- According to the safety code, which of the following is the minimum approach distance between a 100,000-volt electric line and a distribution mast?
- What should be inspected if a warning bulb operates when the ground circuit is bypassed using a jumper wire?
- What should be inspected if a warning bulb operates when the ground circuit is bypassed using a jumper wire?
- What should be done if a water pump leak is discovered during the pressure testing of a cooling system?
- What should be done if a water pump leak is discovered during the pressure testing of a cooling system?
- If a lower gear is engaged when going down a very steep hill, which of the following is reduced?
- If a lower gear is engaged when going down a very steep hill, which of the following is reduced?
- Commercial bus drivers are required to have a CDL if they operate a?
- Commercial bus drivers are required to have a CDL if they operate a?
- The branch circuit conductor supplying a 3/4 hp, 1Ø 115 volt motor shall have an ampacity of which of the following?
- The branch circuit conductor supplying a 3/4 hp, 1Ø 115 volt motor shall have an ampacity of which of the following?
- What are some other terms for controlled braking?
- What are some other terms for controlled braking?
- Where does the electrical current travel when you flip the key?
- Where does the electrical current travel when you flip the key?
- Why is it crucial to be aware of the liquids stockout?
- Why is it crucial to be aware of the liquids stockout?
- When checking the output signal of an A/C signal generator, which of the following would indicate a satisfactory signal?
- When checking the output signal of an A/C signal generator, which of the following would indicate a satisfactory signal?
- Which change is most likely to repair a car in park that rolls continuously?
- Which change is most likely to repair a car in park that rolls continuously?
- After removing an injector, what action is taken if engine oil is discovered to be diluted with fuel?
- After removing an injector, what action is taken if engine oil is discovered to be diluted with fuel?
- How many amps would be the maximum motor-running overload protection for a 3 horsepower, 1 230V motor?
- How many amps would be the maximum motor-running overload protection for a 3 horsepower, 1 230V motor?
- What may occur if a vehicle hauling excess excavation material throws its full load into the hole?
- What may occur if a vehicle hauling excess excavation material throws its full load into the hole?
- This is accurate for fixing or maintaining an air conditioning system, correct?
- This is accurate for fixing or maintaining an air conditioning system, correct?
- Which of the following size dual-element fuse does the Code require for a 2 hp, 208 volt, single-phase motor?
- Which of the following size dual-element fuse does the Code require for a 2 hp, 208 volt, single-phase motor?
- What is the primary issue while removing brake callipers to replace disc brake pads in order to safeguard the ABS hydraulic control unit?
- What is the primary issue while removing brake callipers to replace disc brake pads in order to safeguard the ABS hydraulic control unit?
- A trailer equipped with electric brakes is being evaluated for inadequate brake application under load. The technician has properly adjusted the controller's gain and verified that power is available at the trailer's wheels. How should the technician discover the source of the issue?
- A trailer equipped with electric brakes is being evaluated for inadequate brake application under load. The technician has properly adjusted the controller's gain and verified that power is available at the trailer's wheels. How should the technician discover the source of the issue?
- A trailer equipped with electronic brakes is being evaluated for inadequate brake application under load. The technician has properly adjusted the controller's gain and verified that power is available to the trailer's wheels. How should the technician discover the source of the issue?
- A trailer equipped with electronic brakes is being evaluated for inadequate brake application under load. The technician has properly adjusted the controller's gain and verified that power is available to the trailer's wheels. How should the technician discover the source of the issue?
- Which of the following will cause the retarder of an automatic gearbox to work poorly and create excessive heat?
- Which of the following will cause the retarder of an automatic gearbox to work poorly and create excessive heat?
- Using which of the following will avoid damage to the crankshaft rod journal during piston/rod installation?
- Using which of the following will avoid damage to the crankshaft rod journal during piston/rod installation?
- What function does volatile RAM serve?
- What function does volatile RAM serve?
- A car with traction control and electronic stability control is undergoing replacement of the front brake rotors and brake pads. Technician 1 suggests
recalibration of the yaw rate and deceleration sensor. Technician 2 suggests indexing the new rotors to the hub using a dial indication to minimise run-out. Which technology is best?
- A car with traction control and electronic stability control is undergoing replacement of the front brake rotors and brake pads. Technician 1 suggests
recalibration of the yaw rate and deceleration sensor. Technician 2 suggests indexing the new rotors to the hub using a dial indication to minimise run-out. Which technology is best?
- How many lines are there on the head of an 8UNF cap screw?
- How many lines are there on the head of an 8UNF cap screw?
- Which of the following is the most important when removing hydraulic cylinders from the dump section of a roll off truck?
- Which of the following is the most important when removing hydraulic cylinders from the dump section of a roll off truck?
- The low side pressure of a CCFOT air conditioning system is 26 psi, whereas the high side pressure is 210 psi. The temperature of the air discharged from the vent is 14 degrees Celsius. What difficulty does the air conditioning system have?
- The low side pressure of a CCFOT air conditioning system is 26 psi, whereas the high side pressure is 210 psi. The temperature of the air discharged from the vent is 14 degrees Celsius. What difficulty does the air conditioning system have?
- After rebuilding the torque converter of an automatic gearbox, what is the final inspection?
- After rebuilding the torque converter of an automatic gearbox, what is the final inspection?
- What is the next step when a starting current draw test reveals a lower cranking speed and current than specified?
- What is the next step when a starting current draw test reveals a lower cranking speed and current than specified?
- Where may an engine vacuum diagram be located?
- Where may an engine vacuum diagram be located?
- Which of the following components are parts of the disc brakes?
- Which of the following components are parts of the disc brakes?
- On air cooled engines, which of the following is the main function of the cooling fins?
- On air cooled engines, which of the following is the main function of the cooling fins?
- In relation to a manual air conditioning system without automatic control, the compressor clutch will not operate. Technician 1 says there is a failed compressor thermal protector. Technician 2 says there is an incorrectly adjusted temperature door. Which tech is correct?
- In relation to a manual air conditioning system without automatic control, the compressor clutch will not operate. Technician 1 says there is a failed compressor thermal protector. Technician 2 says there is an incorrectly adjusted temperature door. Which tech is correct?
- Which of the following is the primary function of the data collected from the engine-hour metre at the conclusion of each day?
- Which of the following is the primary function of the data collected from the engine-hour metre at the conclusion of each day?
- A device that automatically or manually transfers one or more load conductor connections from one power source to another is known as?
- A device that automatically or manually transfers one or more load conductor connections from one power source to another is known as?
- Excessive and persistent black smoke as well as a diesel engine's loss of power suggest which of the following?
- Excessive and persistent black smoke as well as a diesel engine's loss of power suggest which of the following?
- Slip-limit differentials?
- Slip-limit differentials?
- Why must water be drained from the air tanks?
- Why must water be drained from the air tanks?
- When all cable diameters are identical, which of the following slings has the lowest lifting capacity?
- When all cable diameters are identical, which of the following slings has the lowest lifting capacity?
- A vehicle's Malfunction Indicator Lamp is lit. A P0133 code O2 sensor circuit delayed response is present. What test approach would validate a delayed reaction time when monitoring the O2 sensor?
- A vehicle's Malfunction Indicator Lamp is lit. A P0133 code O2 sensor circuit delayed response is present. What test approach would validate a delayed reaction time when monitoring the O2 sensor?
- Voltage drop measurements on the starting circuit are performed to locate?
- Voltage drop measurements on the starting circuit are performed to locate?
- What is the most probable reason of a transfer case that will not shift from low gear ratio to direct drive or 1:1 ratio?
- What is the most probable reason of a transfer case that will not shift from low gear ratio to direct drive or 1:1 ratio?
- How frequently should the air tanks on a vehicle that is driven on the highway be drained?
- How frequently should the air tanks on a vehicle that is driven on the highway be drained?
- The safety catch for the fifth-wheel locking lever must be? for a connection to be complete.
- The safety catch for the fifth-wheel locking lever must be? for a connection to be complete.
- When the brake is applied after a remote start on a remote starting system, what prevents the engine from turning off?
- When the brake is applied after a remote start on a remote starting system, what prevents the engine from turning off?
- How are the batteries linked using jumper cables when a backup battery is present?
- How are the batteries linked using jumper cables when a backup battery is present?
- In relation to a vehicle PCM requiring programming to resolve a transmission shift problem listed in a service bulletin, technician 1 thinks reprogramming consists of downloading new calibration files from a scan tool, personal computer or modem into the PCM's electronically erasable programmable
read-only memory (EEPROM) (EEPROM). Technician 2 believes reprogramming is not an OBD-II requirement but that many vehicles will need a new PCM in the event software changes become necessary. Which tech is correct?
- In relation to a vehicle PCM requiring programming to resolve a transmission shift problem listed in a service bulletin, technician 1 thinks reprogramming consists of downloading new calibration files from a scan tool, personal computer or modem into the PCM's electronically erasable programmable read-only memory (EEPROM) (EEPROM). Technician 2 believes reprogramming is not an OBD-II requirement but that many vehicles will need a new PCM in the event software changes become necessary. Which tech is correct?
- How do you fix an electronically controlled automatic transmission that refuses to move into second gear?
- How do you fix an electronically controlled automatic transmission that refuses to move into second gear?
- What do conductors of fibre optic devices do?
- What do conductors of fibre optic devices do?
- To what purpose must fittings and plugs be cleaned of dirt?
- To what purpose must fittings and plugs be cleaned of dirt?
- What may occur if a vehicle hauling excess excavation material throws its full load into the hole?
- What may occur if a vehicle hauling excess excavation material throws its full load into the hole?
- How should the horn pad be oriented when the steering wheel pad is safely removed during a repair?
- How should the horn pad be oriented when the steering wheel pad is safely removed during a repair?
- Which of the following is the maximum size overload relay permitted for protection against overload for a 1Ø, 2 hp, 208 volt motor?
- Which of the following is the maximum size overload relay permitted for protection against overload for a 1Ø, 2 hp, 208 volt motor?
- When using a Digital Multi-meter voltmeter function to check for a voltage drop, metre leads should be connected in which of the following ways?
- When using a Digital Multi-meter voltmeter function to check for a voltage drop, metre leads should be connected in which of the following ways?
- Which portion of the kingpin should the jaws latch onto?
- Which portion of the kingpin should the jaws latch onto?
Flashcards
Polarity
Polarity
The direction of a magnetic or electrical field.
Malfunction Indication Light (MIL)
Malfunction Indication Light (MIL)
A light that flashes on a vehicle's dashboard indicating a malfunction.
Onboard Diagnostic (OBD) System
Onboard Diagnostic (OBD) System
A system in a vehicle that monitors and diagnoses engine performance.
Valve Binding
Valve Binding
Signup and view all the flashcards
Optimal Operating Temperature
Optimal Operating Temperature
Signup and view all the flashcards
Cooling System
Cooling System
Signup and view all the flashcards
Port Injection
Port Injection
Signup and view all the flashcards
Fuel Pressure
Fuel Pressure
Signup and view all the flashcards
Transaxle
Transaxle
Signup and view all the flashcards
Air Leakage Rate
Air Leakage Rate
Signup and view all the flashcards
Water Pump
Water Pump
Signup and view all the flashcards
Fuel Vapor Return Line
Fuel Vapor Return Line
Signup and view all the flashcards
Sensor
Sensor
Signup and view all the flashcards
Body Computer
Body Computer
Signup and view all the flashcards
Air Bag System
Air Bag System
Signup and view all the flashcards
Impact Sensor
Impact Sensor
Signup and view all the flashcards
Ohmmeter
Ohmmeter
Signup and view all the flashcards
Battery
Battery
Signup and view all the flashcards
Charging System
Charging System
Signup and view all the flashcards
Safety Precautions
Safety Precautions
Signup and view all the flashcards
Anti-Lock Braking System (ABS)
Anti-Lock Braking System (ABS)
Signup and view all the flashcards
Double Fisherman's Knot
Double Fisherman's Knot
Signup and view all the flashcards
Engine Coolant Temperature Sensor
Engine Coolant Temperature Sensor
Signup and view all the flashcards
Resistance
Resistance
Signup and view all the flashcards
Celsius (°C)
Celsius (°C)
Signup and view all the flashcards
Weather Pack Connection
Weather Pack Connection
Signup and view all the flashcards
Study Notes
Polarity and Electrical Systems
- Polarity is a term used to describe the direction of a magnetic or electrical field.
Engine Performance and Diagnostics
- An onboard diagnostic vehicle's malfunction indication light will flash when a valve is removed from a cylinder head and starts to bind as the tip reaches the guide.
- If a cooling system operates at too cool an operating temperature, the engine will do which of the following?
- An hour of inactivity makes it difficult to start a car with port injection.
- A fuel pressure test reveals that the fuel pressure is normal, but drops rapidly to nothing when the engine is shut off due to a fuel system disorder.
Transmission and Drivetrain
- The most common reason of a transaxle jumping out of gear while under load is due to malfunctioning of the transaxle.
Braking Systems
- Air loss in a straight truck or bus with the engine off and brakes engaged should not exceed a certain number.
- Maximum leakage rates are a set standard.
Cooling Systems
- If the coolant flow from on a leaking water pump, it may cause engine damage.
- The function of the fuel vapour return line is to return any vapour to the fuel tank.
Electrical Systems and Sensors
- A sensor that communicates temperature information to a body computer, such as an ambient air temperature sensor for air conditioning, is a type of sensor.
- The oxygen cylinder's valves must be opened in a specific way.
- When fixing air bag systems, impact (discrimination) or safety (arming) sensors may be measured using an ohmmeter.
Battery and Charging Systems
- The safest and most effective method for using a wrench is by using proper techniques.
- When charging a battery, certain procedures must be followed.
Safety Precautions and Procedures
- When approaching a railroad crossing, the bus must halt between certain points.
- In relation to radiator cores, they are made from sheet brass or other materials.
- A Weather Pack connection must be repaired in a specific way.
General Knowledge
- The primary function of anti-lock brakes is to prevent wheel lockup.
- Which of the following knots is used to affix two lines of the same diameter together so that they do not slip?
- The engine coolant temperature sensor has a resistance of 100,000 ohms at -40°C and just 70 ohms at 130°C.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge on how polarity is described with this quiz question. Choose from the options provided to see if you know the correct answer.
