Chapter 90

Pataasin ang iyong marka sa homework at exams ngayon gamit ang Quizwiz!

What is the recommended location to store a HEV ignition key during​ service?

Lock box

Servicing the base brakes on a hybrid vehicle requires the technician to​ ________.

Replace the pads when​ needed, just as on any other vehicle

Technician A says that CAT I meter leads may be used to test HV system components as long as the DMM itself is rated CAT III. Technician B says that CAT IV test leads are​ clamp-on inductive type leads. Which technician is​ correct?

Technician B only

Technician A says that the HV battery is grounded to the vehicle chassis. Technician B says that the HV battery and cables are completely insulated and isolated from the rest of the vehicle. Which technician is​ correct?

Technician B only

Which statement regarding​ high-voltage circuitry in HEVs is NOT​ correct?

The HV system is not energized when the ICE is in idle stop mode and the electrical​ A/C compressor is running

The hybrid vehicle control system can detect a​ high-voltage leakage to ground by use of​ ________.

A ground fault monitor system

Technician A says that the​ high-voltage cables may be repaired if damaged while lifting on a vehicle hoist. Technician B says that a paint oven does not get hot enough to damage​ high-voltage cables or other hybrid components. Which technician is​ correct?

Neither technician A nor B

How long can power be retained in the​ high-voltage system once it has been​ disabled?

None of these

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

Technician A says that all components in the​ high-voltage battery box are completely insulated from the rest of the vehicle for safety. Technician B says that the​ high-voltage battery box is located under the hood in some vehicles. Which technician is​ correct?

Technician A only

Technician A says that DMMs are assigned CAT ratings based on voltage capacity alone. Technician B says that DMMs are rated according to their ability to handle potential electrical energy. Which technician is​ correct?

Technician B only

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

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

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

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

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

Some hybrid air conditioning systems use an electrically driven compressor that uses a special lubricant. What precaution should be taken when servicing these​ systems?

A dedicated recycling machine for the HEV

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

The high voltage cables​ ________.

Both A and B

What is TRUE regarding protective gloves worn during HV system​ service?

Both A and B Leather gloves are worn over the rubber gloves to protect the rubber from damage, Rubber gloves should be checked for leaks before each use.

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

Technician A says that a completely assembled electric motor is not likely to produce injury by electrical shock. Technician B says that turning off the ignition on an HEV causes the system main relay to disable the​ high-voltage system. Which technician is​ correct?

Both technicians A and B

Technician A says that when a hybrid electric vehicle must remain in the shop for over a​ month, the battery should be charged by running the vehicle if possible. Technician B says that if the battery unit must be​ removed, it should be handled with PPE and always tested for voltage and treated with care. Which technician is​ correct?

Both technicians A and B

Two technicians are discussing jump starting a hybrid electric vehicle. Technician A says that the ​high-voltage batteries can be jumped on some 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?

Both technicians A and B

Which of the following systems will require disabling the​ high-voltage (HV) system during​ service?

Electric AC compressor replacement

How often should​ linesman's gloves be inspected by a qualified testing​ lab?

Every six months

A hybrid vehicle​ 12-volt battery is located under the hood. This will usually be a​ ________ type battery.

Flooded

On a HEV that uses a​ "START" push​ button, what precaution should be taken when​ de-powering the​ vehicle?

Make sure the key fob is at least 15 feet away from the vehicle


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