Introduction To Hybrid Vehicles and Hybrid Safety and Service Procedures

Nickel metal hydride (NiMH) batteries can be damaged if exposed to temperatures higher than about ________.

150 deg F 200 deg F 175 deg F 225 deg F

About how fast does a motor-generator crank the internal combustion engine?

About 350-600 RPM About 2000 RPM About 150-300 RPM About 1000 RPM

Which type of hybrid is capable of propelling the vehicle by just using the electric motor?

BAS type Strong (full) hybrid Mild hybrid Medium hybrid

What can occur if a hybrid electric vehicle is pushed in the shop?

High voltage will be generated by the motor/generator The HV battery pack can be damaged The tires will be locked unless the ignition is on Damage to the electronic controller can occur

Which type of hybrid electric design costs the least?

Parallel hybrid design BAS design Series hybrid design Strong hybrid design

What routine service procedure could result in lower fuel economy, which the owner may discover?

Using the wrong viscosity engine oil Replacing tires Replacing the air filter Either Using the wrong viscosity engine oil or Replacing tires

The local interlock system on a hybrid vehicle detects when ________ have been removed from high-voltage circuits.

cables bolts covers screws

A CAT III certified DMM should be used whenever measuring high-voltage circuits or components. The CAT III rating relates to ________.

high voltage high energy high electrical resistance Both high voltage and high energy

All of the following are characteristic of a hybrid electric vehicle (HEV) EXCEPT ________.

high voltages (safety issue) lower amount of carbon dioxide released into the atmosphere lower fuel economy quiet

On a vehicle equipped with a belt-alternator-starter (BAS) hybrid system, the alternator is also used to ________.

pump refrigerant assist steering effort circulate the coolant start the engine

All of the following will shut off the high voltage to components and circuits EXCEPT ________.

removing the main fuse, relay, or HV plug turning the ignition off disconnecting the 12-volt auxillary battery opening the drivers door

Electric motors are better than an internal combustion engine to propel a vehicle because ________.

they produce high torque at low speeds they are quiet they do not burn fuel and therefore do not release carbon dioxide into the environment All of these are correct

The GM EV-1 was what type of vehicle?

The first generation hybrid-electric vehicle (HEV) A series-type HEV Totally electric powered A parallel-type HEV

Which statement is FALSE about high voltage wiring?

Is electrically grounded to the frame (body) of the vehicle Connects the controller to the motor/ generator Is controlled by a relay that opens if the ignition is off Connects the battery pack to the electric controller

Which type hybrid uses 36 to 42 volts?

Medium hybrid Strong hybrid Mild hybrid Full hybrid

Which type of hybrid electric vehicle has idle stop operation?

Strong hybrids only Mild hybrids only Medium hybrids only Strong, mild, and medium hybrids

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

Technician A only Technician B only Both technicians Neither technician

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 1000 volts or higher. Technician B says that leather gloves should be worn over the high-voltage rubber gloves. Which technician is correct?

Technician A only Technician B only Both technicians Neither technician

Technician A says that most hybrids use the series hybrid design. Technician B says that most hybrids have 42 volt batteries. Which technician is correct?

Technician A only Technician B only Both technicians Neither technician

Two technicians are discussing jump starting a hybrid electric vehicle. Technician A says that the high-voltage batteries can be jumped on all HEV models. Technician B says that the 12-volt auxillary battery can be jumped using a conventional jump box or jumper cable. Which technician is correct?

Technician A only Technician B only Both technicians Neither technician