Question 1

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

Accepted Answer

BEV (Battery Electric Vehicle) air-conditioning systems can significantly affect an EV's driving range because they draw power from the vehicle's main battery, reducing the energy available for driving.

Question 2

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

Accepted Answer

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?

Accepted Answer

Both technicians are correct. A motor does convert electrical energy into mechanical energy, while an engine converts chemical energy (from fuel combustion) into mechanical energy.

Question 4

A fuel cell produces electricity through electrolysis.

Accepted Answer

A fuel cell generates electricity through a chemical reaction between a fuel (usually hydrogen) and an oxidant (usually oxygen), not through electrolysis. Electrolysis is the process of using electricity to split water into hydrogen and oxygen.

Question 5

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

Accepted Answer

Electric motors can provide maximum torque from a standstill, unlike gasoline engines which need to build up speed to deliver their peak torque.

Question 6

A storage battery only holds DC voltage.

Accepted Answer

A storage battery stores and delivers electrical energy in the form of direct current (DC) voltage, as it relies on a chemical reaction that produces a steady flow of electrons in a single direction.

Question 7

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

Accepted Answer

Not all fuel cell vehicles necessarily have regenerative braking systems; this feature varies by design and manufacturer. However, most do have 12-volt auxiliary systems to power vehicle electronics.

Question 8

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

Accepted Answer

A DC power inverter converts the battery's DC voltage into AC voltage to power the traction motor, not the other way around.

Question 9

A fuel cell converts fuel into electricity.

Accepted Answer

A fuel cell generates electricity through a chemical reaction between a fuel, such as hydrogen, and an oxidant, without combustion, making it a clean and efficient energy conversion technology.

Question 10

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

Accepted Answer

The answer of A  PEM fuel cell needs to operate...

Question 11

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

Accepted Answer

The Nissan Leaf is an all-electric vehicle, meaning it operates on electricity alone without using any gasoline, thus producing zero tailpipe emissions.

Question 12

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

Accepted Answer

In a Proton Exchange Membrane (PEM) fuel cell, the electrolyte is indeed a polymer membrane, specifically designed to conduct protons while being impermeable to gases such as hydrogen and oxygen. This membrane is crucial for the cell's operation, allowing only protons to pass through it from the anode to the cathode, while electrons travel through an external circuit to generate electricity.

Question 13

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

Accepted Answer

The armature is the only moving part in an EV motor because it is the part that rotates to create the magnetic field that drives the motor.

Question 14

Pedestrians cannot hear most approaching BEVs.

Accepted Answer

BEVs (Battery Electric Vehicles) are much quieter than traditional internal combustion engine vehicles, especially at lower speeds, making it harder for pedestrians to hear them approaching.

Question 15

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

Accepted Answer

Electrolysis is the process of using electricity to split water into hydrogen and oxygen.

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?

Accepted Answer

Gasoline can be reformed to produce hydrogen gas, which can then be used in a fuel cell. Carbon dioxide, however, cannot be used as a source of hydrogen for a fuel cell as it does not contain hydrogen in a form that can be directly utilized for hydrogen production.

Question 17

Which of the statements about hydrogen is false?

Accepted Answer

The answer of Which of the statements about hydrogen is...

Question 18

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

Accepted Answer

Mitsubishi refers to its battery pack as the "Battery Management System" (BMS), not the Energy Storage System (ESS).

Question 19

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

Accepted Answer

The answer of Conductive charging is done with a connector...

Question 20

The Tesla Roadster uses Nickel-metal hydride batteries .

Accepted Answer

The answer of The Tesla Roadster uses Nickel-metal hydride batteries...

Quiz 36: Electric Vehicles