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Quiz Session - Attempts With Random Questions

ASE L3 Exam Questions

Page 9 of 10

161.

Technician A says the interlock circuit is a low voltage series circuit. Technician B says the interlock circuit is a low voltage parallel circuit. Who is correct? 

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Only technician A is correct. The interlock circuit is a series circuit used to disable the HV system. 

162.

Technician A says that, while accelerating, the MG works as a motor. Technician B says that the MG is a different component than the traction motor. Which technician is correct?

  • Technician A

  • Both A and B

  • Technician B

  • Neither A nor B

Correct answer: Technician A

Technician A is correct. When a vehicle is accelerating, the MG is a motor, and when it is decelerating it is a generator.

Technician B is incorrect. The MG is also known as the traction motor or drive motor.

163.

Technician A says the battery tray on a PHEV holds the battery internal components. Technician B says on several HEV vehicles, the battery tray is located on the inside of the vehicle.

  • Both A and B

  • Technician A

  • Technician B

  • Neither A nor B

Correct answer: Both A and B

Both technicians are correct. The battery tray houses the battery, and in many vehicles it is located inside.

164.

Technician A says working on the HEV ICE is the same as working on traditional gasoline engines. Technician B says the ICE in hybrid vehicles is worked on differently from the traditional gas engine. Which technician is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Technician A is incorrect. Even though both cars have an internal combustion engine, there are differences, making technician B correct.

Among the differences, the ICE may only run under certain conditions in the HEV.

165.

Technician A says the DC/DC converter may be found inside the inverter. Technician B says the DC/DC converter may be found inside the high-voltage battery box. Who is correct?

  • Both A and B

  • Technician A

  • Technician B

  • Neither A nor B

Correct answer: Both A and B

Both technicians are correct. Depending on the make and model, the DC/DC converter may be found inside the inverter or inside the high-voltage battery box. 

166.

Technician A says some inverters need to be replaced. Technician B says some inverters have serviceable internal parts. Who is correct?

  • Both A and B

  • Technician A

  • Technician B

  • Neither A nor B

Correct answer: Both A and B

Both technicians are correct. Some inverters must be replaced, while others have serviceable internal components.

167.

Technician A says some vehicles use one interlock circuit. Technician B says small interlock circuits don't have DTCs that are specific to them. Which technician is correct?

  • Technician A

  • Both A and B

  • Technician B

  • Neither A nor B

Correct answer: Technician A

Technician A is correct. Depending on the vehicle, it can have multiple or just one interlock circuit.

Technician B is incorrect. Small interlock circuits contain specific DTCs to make diagnostics of an open circuit easier.

168.

A blue cable on a hybrid vehicle indicates what?

  • Intermediate voltage below 60 volts DC or 30 volts AC

  • High voltage above 60 volts DC

  • Low voltage above 30 volts AC

  • Low voltage of approximately 120 volts AC

Correct answer: Intermediate voltage below 60 volts DC or 30 volts AC

Voltage above 60 volts DC and 30 volts AC must use orange cables. Anything below is up to the manufacturer. Some choose blue, green, or black.

169.

Which type of battery resembles the batteries purchased at the hardware store?

  • Cylindrical 

  • Prismatic 

  • Oblong 

  • Rectangular 

Correct answer: Cylindrical 

Cylindrical type batteries look similar to the battery you may find at the hardware store. You may also find these batteries in many home items such as a TV remote control.

170.

Technician A says the 12-volt battery on an HV can propel the vehicle under downhill conditions. Technician B says the 12-volt battery can be used for the infotainment system. Who is correct?

  • Technician B

  • Technician A

  • Both A and B

  • Neither A nor B

Correct answer: Technician B

Only technician B is correct. The 12-volt battery is never used to propel the vehicle. The 12-volt battery can be used for low voltage systems such as infotainment.

171.

If there is a DTC for an inverter capacitor, what should be done?

  • Replace the inverter assembly

  • Replace the capacitor

  • Rebuild the capacitor

  • Rebuild the inverter assembly

Correct answer: Replace the inverter assembly

If there is a DTC for an inverter capacitor, replace the inverter assembly.

172.

All the following are true regarding electronic steering systems except:

  • Cables carrying current in the EPS system are usually orange in color.

  • Some EPS motors assist in moving the steering column.

  • Some EPS systems use a dedicated DC-DC converter. 

  • The EPS torque sensor requires zero calibration.

Correct answer: Cables carrying current in the EPS system are usually orange in color.

Typically, high-voltage cables in the Electronic Power Steering (EPS) system are yellow in color to distinguish them from the orange, high-voltage system.

173.

Technician A says fuel level corrections are based on signals from the inclination sensors. Technician B says the ambient temperature sensor doesn't affect the fuel gauge corrections. Which technician is correct?

  • Technician A

  • Both A and B

  • Technician B

  • Neither A nor B

Correct answer: Technician A

Technician A is correct. Fuel gauge corrections are determined by signals from the inclination sensors and the ambient temperature sensor, making technician B incorrect.

174.

On a plug-in hybrid, the 12V battery is charged by what?

  • DC-to-DC converter

  • Charging cord

  • Alternator

  • Generator

Correct answer: DC-to-DC converter

All hybrids use the DC-to-DC converter to charge the 12V battery and run the 12V system after start-up.

It will not be charged by plugging the hybrid in, nor through an alternator or generator.

175.

A technician is checking a motor-generator for shorts to ground and gets a reading of 500 volts. What does this indicate? 

  • An acceptable reading

  • A short to ground 

  • A short to power 

  • An open circuit 

Correct answer: An acceptable reading

Motor-Generator (MG) windings can be checked for shorts to ground using a megohmmeter. The meter should be connected between each of the winding cables and ground, one at a time. Typically, a meter reading of 500 volts is acceptable and indicates there is not a short to ground.

176.

How much does a 2017 Chevrolet Bolt battery weigh?

  • 1000 lbs.

  • 2000 lbs.

  • 1500 lbs.

  • 500 lbs.

Correct answer: 1000 lbs.

The 2017 Chevrolet Bolt battery weighs 1000 lbs.

177.

Technician A says a battery cell is a pair of electrodes submerged in an electrolyte solution. Technician B says a battery cell is a collection of electrodes connected in series. Who is correct?

  • Technician A

  • Technician B

  • Both A and B

  • Neither A nor B

Correct answer: Technician A

Only technician A is correct. A cell is a pair of electrodes submerged in an electrolyte solution. A battery is a collection of cells connected in series. 

178.

To test for shorts between windings, a milliohmmeter should be connected where?

  • Between cable terminals

  • Between a cable terminal and ground

  • Between a cable terminal and power 

  • Between a cable terminal and the inverter 

Correct answer: Between cable terminals

To check for shorts between motor windings, a milliohmmeter should be connected between the appropriate phase cable terminals. 

179.

Most hybrids use which type of A/C compressor?

  • Scroll

  • Screw 

  • Rotary 

  • Reciprocating 

Correct answer: Scroll

Most hybrids use a scroll type A/C compressor. With this design, power to the compressor is varied to adjust compressor speed, thereby also adjusting A/C system pressure.

180.

Technician A says the brake system runs a self-test each ignition cycle. Technician B says that with most HVs with hydraulic brakes, the brakes are electronically controlled. Who is correct?

  • Both A and B

  • Technician A

  • Technician B

  • Neither A nor B

Correct answer: Both A and B

Both technicians are correct. The brake system will run a self-test each ignition cycle. Most hydraulic brake systems on EVs are controlled by a control module.

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