Question 1

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

Accepted Answer

The answer of A ______ _____ produces electricity through an...

Question 2

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?

Accepted Answer

Both technicians are correct in their approach to diagnosing the control system of a Battery Electric Vehicle (BEV). Technician A checks the auxiliary battery, which is crucial for powering the vehicle's electrical systems. Technician B inspects the low-voltage circuit components, which is essential for ensuring there are no electrical faults in the system.

Question 3

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?

Accepted Answer

Both Technician A and Technician B are correct. Some Battery Electric Vehicles (BEVs) use a liquid heating system to warm the passenger compartment, while others use an electric resistance heater with a fan.

Question 4

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

Accepted Answer

Compressed hydrogen in FCEVs is typically stored at approximately 5,000 psi to ensure a compact storage solution while maintaining a sufficient energy density for practical vehicle range.

Question 5

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?

Accepted Answer

Conductive charging involves metal-to-metal contact, while inductive charging does not require a direct connection, as it uses electromagnetic fields to transfer energy.

Question 6

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

Accepted Answer

Fuel cells generate electricity through an electrochemical reaction, not through combustion or ignition of hydrogen. Catalysts in fuel cells facilitate the reaction between hydrogen and oxygen to produce water, electricity, and heat, but they do not ignite the hydrogen.

Question 7

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

Accepted Answer

The answer of For most EVs the motor increases torque...

Question 8

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?

Accepted Answer

The answer of Technician A says that power is the...

Question 9

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?

Accepted Answer

The answer of While discussing an illuminated Malfunction Indicator Light...

Question 10

What is the basic fuel for a fuel cell?

Accepted Answer

Fuel cells typically use hydrogen as the basic fuel to produce electricity through a chemical reaction with oxygen.

Question 11

Which of the following statements about hydrogen is false?

Accepted Answer

Producing hydrogen by electrolysis is not considered inexpensive due to the high energy requirements for splitting water into hydrogen and oxygen. This process is energy-intensive and currently more costly compared to other methods of hydrogen production, such as steam methane reforming.

Question 12

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?

Accepted Answer

Technician A is incorrect because the AVCON connector is not the standard for nearly all BEVs in North America; the SAE J1772 connector is more commonly used for Level 1 and Level 2 AC charging. Technician B is correct because the CHAdeMO standard is indeed used for DC fast charging on vehicles like the Nissan Leaf and Mitsubishi i.

Question 13

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?

Accepted Answer

Both technicians are correct. Hydrogen can be produced from natural gas through a process called steam methane reforming. Additionally, hydrogen can also be produced through the process of electrolysis, which involves splitting water molecules into hydrogen and oxygen using an electrical current.

Question 14

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

Accepted Answer

Carbon dioxide (CO2) cannot be directly used as a source for the production of hydrogen. Hydrogen production typically involves processes that extract hydrogen from compounds containing hydrogen atoms, such as water (electrolysis) or hydrocarbons (steam reforming of natural gas, gasoline, or methanol). Carbon dioxide, being fully oxidized carbon, does not contain hydrogen in its molecular structure, making it unsuitable as a direct source for hydrogen production.

Question 15

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?

Accepted Answer

Technician A is correct because a fuel cell generates electricity through an electrochemical process combining hydrogen and oxygen to produce water, without combustion or ignition, which contradicts Technician B's statement about igniting hydrogen.

Question 16

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?

Accepted Answer

The answer of While discussing hydrogen: Technician A says that...

Question 17

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?

Accepted Answer

Both statements are correct. Technician A is correct because controllers can reverse the current flow to change the motor's direction for reverse gear. Technician B is correct because modern controllers use pulse width modulation (PWM) to adjust motor speed efficiently.

Question 18

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

Accepted Answer

The answer of Technician A says that all FCEVs have...

Question 19

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

Accepted Answer

The answer of The process of splitting methane into hydrogen...

Question 20

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?

Accepted Answer

Both technicians are correct. Inductive charging is a safe and convenient method of charging BEVs, and it does require that a weatherproof paddle be inserted into the vehicle's charge port.

Quiz 36: Electric Vehicles

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

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?

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?

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

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?

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

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

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?

What is the basic fuel for a fuel cell?

Which of the following statements about hydrogen is false?

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?

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?

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

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?

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?

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?

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

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

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?

Quiz 36: Electric Vehicles

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

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?

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?

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

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?

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

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

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?

What is the basic fuel for a fuel cell?

Which of the following statements about hydrogen is false?

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?

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?

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

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?

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?

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?

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

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

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 __ _ produces electricity through an electrochemical reaction that combines hydrogen and oxygen to form water.

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

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?