Deck 36: Electric Vehicles

Question 1

BEV air-conditioning systems also have little effect on an EV's driving range.

Answer 1

False

Question 2

Fuel cell electric vehicles are also electrically powered low-emission vehicles.

Answer 2

False

Question 3

Technician A says a motor converts electrical energy into mechanical energy. Technician B says an engine converts chemical energy into mechanical energy. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Answer 3

C

Question 4

A fuel cell produces electricity through electrolysis.

Question 5

A gasoline engine provides more torque at lower speeds than an electric motor.

Question 6

A storage battery only holds DC voltage.

Question 7

All fuel cell vehicles have regenerative braking and 12-volt auxiliary systems.

Question 8

A DC power inverter converts the battery's AC voltage into three-phase DC voltage to power the traction motor.

Question 9

A fuel cell converts fuel into electricity.

Question 10

A  PEM fuel cell needs to operate at very high temperatures.

Question 11

The Nissan Leaf is a true ZEV with zero tailpipe emissions.

Question 12

In a PEM, the electrolyte is a polymer membrane, called the proton exchange membrane.

Question 13

The armature of the motor is the only moving part in an EV.

Question 14

Pedestrians cannot hear most approaching BEVs.

Question 15

Electrolysis is the process in which hydrogen and oxygen are combined to form water.

Question 16

Technician A says that gasoline can be used as a source of hydrogen for a fuel cell. Technician B says that carbon dioxide can be used as a source of hydrogen for a fuel cell. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 17

Which of the statements about hydrogen is false?

A)A hydrogen atom is one proton and two electrons.
B)Hydrogen contains more energy per weight than any other fuel.
C)Fossil fuels are a combination of carbon and hydrogen.
D)Hydrogen is produced in a fuel cell by breaking down water .

Question 18

Mitsubishi calls its battery pack the Energy Storage System (ESS).

Question 19

Conductive charging is done with a connector called the ODU that looks like a fuel nozzle.

Question 20

The Tesla Roadster uses Nickel-metal hydride batteries .

Question 21

A ______ _____ produces electricity through an electrochemical reaction that combines hydrogen and oxygen to form water.

Question 22

While discussing diagnosis of the control system of a BEV: Technician A begins by checking the voltage of the auxiliary battery. Technician B inspects all fuses, fusible links, wiring harness, connectors, and ground in the low-voltage circuit. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 23

Technician A says some BEVs use liquid to heat the passenger compartment. Technician B says some BEVs use an electric resistance heater with a fan to heat the passenger compartment. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 24

The compressed hydrogen used in FCEVs (fuel cell electric vehicle)is stored at approximately ______ psi.

A)500
B)2,000
C)5,000
D)20,000

Question 25

Technician A says with conductive charging there is no metal-to-metal contact between the charge paddle and the charge port of the vehicle. Technician B says inductive charging takes place by making a connection between the charging connector and the charge port. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 26

Which of the following statements about fuel cells is NOT true?

A)A single fuel cell produces very low voltage, normally less than one volt.
B)A fuel cell produces electricity through an electrochemical reaction that combines hydrogen and oxygen to form water.
C)A fuel cell is composed of two electrodes coated with a catalyst and separated from each other by an electrolyte and from the case by separators.
D)In a fuel cell, catalysts are used to ignite the hydrogen; this causes a release of electrons or electrical energy.

Question 27

For most EVs the motor increases torque so there in no need for a _____________.
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Question 28

Technician A says that power is the ability to do work. Technician B says that energy is the rate at which work is done. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 29

While discussing an illuminated Malfunction Indicator Light (MIL)on the instrument panel   of a BEV: Technician A says diagnosis of BEV concerns are much more difficult than diagnosing concerns on a conventional vehicle because there are more components. . Technician B says faults held in the computer's memory can be retrieved as DTCs.  Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 30

What is the basic fuel for a fuel cell?

A)Hydrogen
B)Methanol
C)Electricity
D)Gasoline

Question 31

Which of the following statements about hydrogen is false?

A)Producing hydrogen by electrolysis is an inexpensive way to produce hydrogen
B)Hydrogen must be stored as a compressed gas.
C)Hydrogen is only found in compound form.
D)Hydrogen is highly flammable and there is risk for an explosion.

Question 32

While discussing charger connections: Technician A says nearly all BEVs currently sold in North America have an AVCON connector. Technician B says the connector currently used for DC fast charging on the Nissan Leaf and Mitsubishi i vehicles is based on the CHAdeMO standard. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 33

Hydrogen-fueled vehicles are being discussed. Technician A says hydrogen [H₂] can be made from natural gas. Technician B says hydrogen can be made from water. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 34

Which of the following CANNOT be used as a source for the production of hydrogen?

A)Gasoline
B)Methanol
C)Carbon dioxide
D)Natural gas

Question 35

Technician A says that a fuel cell produces electricity through an electrochemical reaction that combines hydrogen and oxygen to form water. Technician B says that in a fuel cell, catalysts are used to ignite the hydrogen, causing a release of electrical energy. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 36

While discussing hydrogen: Technician A says that a hydrogen atom has one proton and two electrons. Technician B says that hydrogen is produced in a fuel cell when water is broken down into its basic elements. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 37

While discussing controllers in BEVs: Technician A says the controller may reverse the current flow to the motor when reverse gear is selected. Technician B says modern controllers adjust motor speed through pulse width modulation. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 38

Technician A says that all FCEVs have regenerative braking. Technician B says that all FCEVs have an auxiliary 12-volt battery. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 39

The process of splitting methane into hydrogen and carbon is called ___________________.

Question 40

While discussing inductive charging: Technician A says most current BEVs use this system because it is safe. Technician B says this method requires that a weatherproof paddle be inserted into the vehicle's charge port. Who is correct?

A)A only
B)B only
C)both A and B
D)neither A nor B

Question 41

List the seven things a BEV driver can do to extend the driving range of the vehicle.

Question 42

List the ten precautions to follow on a BEV during recharging

Question 43

Explain the meaning of the terms kilowatts and kilowatt hours.

Question 44

What is the major disadvantage of current all electric vehicles?

Question 45

Explain the difference between the two basic ways a BEV is connected to an external source of electricity for charging.

Question 46

What basic factors affect the required time to recharge the battery pack in a BEV?

Question 47

Why won't fuel cell vehicles be available for sale in the next few years?

Question 48

The component that changes the molecular structure of hydrocarbons into hydrogen-rich gas is called a(n)___________.

Question 49

Why are carbon dioxide emissions a concern?

Question 50

Why is water purity so important for the effectiveness of a PEM fuel cell?

Question 51

Most production BEVs use _______________type motors.