Deck 36: Electric Vehicles

Question 1

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.

Answer 1

D

Question 2

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

Answer 2

False

Question 3

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

Answer 3

False

Question 4

A fuel cell produces electricity through electrolysis.

Question 5

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

Question 6

A fuel cell converts fuel into electricity.

Question 7

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 8

Which of the statements about hydrogen is NOT true?

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 combinations of carbon and hydrogen.
D) Hydrogen is produced in a fuel cell when water is broken down into its basic elements.

Question 9

Conductive charging is normally accomplished with a fuel nozzle looking connector called the ODU.

Question 10

Technician A says power is the ability to do work. Technician B says 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 11

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

Question 12

Which of the following statements about hydrogen is NOT true?

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 13

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 14

The Tesla Roadster uses Nickel-metal hydride batteries.

Question 15

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

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

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

Question 18

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

Question 19

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 20

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

Question 21

What is the major disadvantage of current all electric vehicles?

Question 22

While discussing diagnosis of 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 23

What is the basic fuel for a fuel cell?

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

Question 24

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

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

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

Question 27

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 28

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 29

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 30

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 31

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 32

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 33

Most production BEVs use _______________type motors.

Question 34

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 35

Most EVs the motor increases torque so there in no need for a _____________.

Question 36

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

Question 37

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

Question 38

Explain what the ratings of kilowatts and kilowatt hours mean.

Question 39

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

Question 40

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 electrons or electrical energy. Who is correct?

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

Question 41

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

Question 42

Why are carbon dioxide emissions a concern?

Question 43

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

Question 44

There are two basic ways a BEV is connected to an external source of electricity for charging: conductive and inductive. What is the difference between the two?

Question 45

List the precautions during recharging to be observed on a BEV.