AUT 450 Hybrid and Electric Vehicle Chapter 19

A CAT-III certified DMM should be used whenever measuring high-voltage circuits or components. The CAT-III rating relates to ___. Question options: A) high voltage B)high energy C)high electrical resistance D)both A and B

both A and B

Which statement is false about high-voltage wiring? Question options: A) Connects the battery pack to the electric controller B)Connects the controller to the motor/generator C)Is electrically grounded to the frame (body) of the vehicle D)Is controlled by a relay that opens if the ignition is OFF

is electrically grounded to the frame of the vehicle

what routine service procedure could result in lower fuel economy, which the owner may discover? A) using the wrong viscosity oil B) replacing tires C) replacing the air filter D) both A and B

both A and B

how should nickel metal hydride batteries be disposed? A) in regular trash B) call an 800 number shown under the hood of the vehicle for info C) submerged in water and then disposed of in regular trash D) burned at an EPA certified plant

call 800 number shown under the hood

all of the following will shut off the high voltage to components and circuits except____? A) opening the drivers door B) turning the ignition OFF C) disconnecting the 12V auxiliary battery D) removing the main fuse, relay, or HV plug

opening the driver's door

nickel-metal hydride batteries can be damaged if exposed to temperatures higher than about____? A) 150 degrees B) 175 degrees C) 200 degrees D) 225 degrees

150 degrees

Rubber gloves should be worn whenever working on or near the high-voltage circuits or components of a hybrid-electric vehicle. Technician A says that the rubber gloves should be rated at 1,000 volts or higher. Technician B says that leather gloves should be worn over the high-voltage rubber gloves. Which technician is correct?

Both tech A and B

If the engine is not running, Technician A says that the high-voltage circuits are de-powered. Technician B says that all high-voltage wiring is orange-colored. Which technician is correct?

Tech B

what can occur if a hybrid electric vehicle is pushed in the shop? A) the HV battery pack can be damaged B) the tires will be locked unless the ignition is ON C) damage to the electronic controller can occur D) high voltage will be generated by the motor generator

high voltage will be generated by the motor generator