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Electric Vehicles (EVs) Worksheet

Total questions: 99

Worksheet time: 50mins

Name
Class
Date
1.

What is the primary need for using electric vehicles (EVs)?

a)

To increase fuel consumption

b)

To reduce air pollution and dependence on fossil fuels

c)

To make vehicles heavier

d)

To reduce vehicle cost only

2.

Which of the following is a type of electric vehicle?

a)

Internal Combustion Engine Vehicle

b)

Steam Engine Vehicle

c)

Hybrid Electric Vehicle (HEV)

d)

Bio-fuel Vehicle

3.

Compared to petrol/diesel vehicles, EVs generally have:

a)

Higher tailpipe emissions

b)

Lower cost and zero emissions

c)

More complex engines

d)

Higher noise levels

4.

What happens to an EV at the end of its life?

a)

It is burned completely

b)

It is recycled or repurposed

c)

It turns into a hybrid

d)

It becomes a petrol vehicle

5.

Which of the following is part of EV technology?

a)

Gearbox

b)

Carburetor

c)

Electric Motor

d)

Fuel Tank

6.

Which layout is common in EVs?

a)

Engine at the front and fuel tank at the rear

b)

In-wheel motor layout

c)

Rear engine with carburetor

d)

Front-engine with gear clutch

7.

What kind of cables are used in EV charging systems?

a)

Audio cables

b)

Coaxial cables

c)

Charging cables (Type1, Type2, CCS)

d)

LAN cables

8.

Which of the following is a key component of an EV?

a)

Radiator

b)

Starter motor

c)

Battery pack

d)

Exhaust pipe

9.

What is the role of controls in electric vehicles?

a)

To control headlights

b)

To manage power delivery from battery to motor

c)

To cool the fuel

d)

To refill fuel

10.

What type of battery is most widely used in EVs today?

a)

Lead-acid

b)

Nickel-Cadmium

c)

Lithium-ion

d)

Alkaline

11.

Which of these is NOT a type of EV battery?

a)

Lithium-ion

b)

Nickel Metal Hydride

c)

Lead-acid

d)

Gasoline

12.

What does “battery plug-in” refer to?

a)

Plugging battery to motor

b)

Plugging charger into the battery for charging

c)

Connecting fuel pipe

d)

Refilling battery acid

13.

Typical EV battery life ranges between:

a)

6 months to 1 year

b)

3 to 5 years

c)

6 to 10 years

d)

20 years

14.

What is the main advantage of using an ultra-capacitor in EVs?

a)

Provides fuel backup

b)

Stores charge very slowly

c)

Charges and discharges rapidly

d)

Works without any electricity

15.

Which of the following is a standard EV charging method?

a)

Level 0

b)

Level 1, Level 2, DC Fast Charging

c)

Thermal charging

d)

Mechanical charging

16.

What does “DC fast charging” provide?

a)

Slow charging using AC

b)

Rapid charging using DC current

c)

Manual charging

d)

Wireless power only

17.

Which is an alternate EV charging source?

a)

Petrol

b)

Diesel

c)

Solar energy

d)

Kerosene

18.

Wireless charging uses which of the following principles?

a)

Friction

b)

Magnetic induction

c)

Combustion

d)

Optical reflection

19.

Which component manages energy flow from the battery to the motor?

a)

Radiator

b)

Controller

c)

Air filter

d)

Crankshaft

20.

What is the environmental benefit of using EVs?

a)

Increased engine temperature

b)

Reduced carbon emissions

c)

High vibration levels

d)

Loud engine sounds

21.

Which of the following motors is commonly used in electric vehicles due to high efficiency and torque?

a)

DCMotor

b)

InductionMotor

c)

BLDCMotor

d)

UniversalMotor

22.

What does BLDC stand for?

a)

BinaryLockedDirectCurrent

b)

BrushlessDirectCurrent

c)

Bi-LevelDirectCurrent

d)

BasicLineDriveController

23.

In a DC motor, torque is produced due to interaction between:

a)

Electric field and magnetic field

b)

Magnetic field and mechanical power

c)

Current and magnetic field

d)

Heat and current

24.

The rotor in an induction motor rotates due to:

a)

Permanent magnets

b)

External excitation

c)

Magnetic induction from the stator

d)

DC current supply

25.

BLDC motors do not have:

a)

Windings

b)

Magnets

c)

Brushes

d)

Shaft

26.

In BLDC motors, what replaces the mechanical commutator?

a)

Gearbox

b)

Slip rings

c)

Electronic controller

d)

Capacitor

27.

In a Series Hybrid Electric Drive Train (HEDT), the coupling is:

a)

Mechanical

b)

Electrical

c)

Hydraulic

d)

Pneumatic

28.

In a Parallel HEDT, the power from the engine and motor is combined using:

a)

Electrical coupling

b)

Magnetic coupling

c)

Mechanical coupling

d)

Chemical coupling

29.

What does EDT stand for in electric vehicles?

a)

Electronic Drive Transmission

b)

Electric Drive Train

c)

Energy Distribution Terminal

d)

Engine Drive Test

30.

Which of the following is a peak power source (PPS) in electric vehicles?

a)

Engine

b)

Battery pack

c)

Supercapacitor

d)

Gearbox

31.

In torque coupling, the engine and motor contribute to:

a)

Same power at different times

b)

Different torque at different times

c)

Combined torque to the wheels

d)

Only motor torque

32.

In speed coupling, the engine and motor:

a)

Operate at same speed

b)

Operate independently

c)

Operate at different speeds but share load

d)

Are mechanically locked

33.

Which of the following is NOT a type of electric motor used in EVs?

a)

DC Motor

b)

Induction Motor

c)

Synchronous Reluctance Motor

d)

Steam Motor

34.

What is the main advantage of Switched Reluctance Motor (SRM)?

a)

High cost

b)

Simple construction and ruggedness

35.

What type of drive converter is used for SRM?

a)

AC to DC

b)

Inverter with asymmetric bridge converter

c)

DC to AC motor starter

d)

BLDC commutator

36.

In SRM, torque is generated due to:

a)

Magnetic attraction between stator and rotor poles

b)

Heat and friction

c)

Permanent magnets

d)

DC brush action

37.

The rotor of an SRM has:

a)

Permanent magnets

b)

Field windings

c)

No windings or magnets

d)

Carbon brushes

38.

Which one of the following motors is easiest to manufacture?

a)

BLDC

b)

Induction Motor

c)

SRM

d)

DC Motor

39.

Power rating design of EV motors depends on:

a)

Colour of the motor

b)

Vehicle weight and performance needs

c)

Number of wheels

d)

Air pressure in tyres

40.

Which motor is best suited for high-speed EV applications?

a)

DC Series Motor

b)

BLDC Motor

c)

Stepper Motor

d)

Synchronous Generator

41.

Which of the following is a unidirectional semiconductor device?

a)

Transistor

b)

Diode

c)

SCR

d)

MOSFET

42.

A thyristor is also known as:

a)

BJT

b)

Triac

c)

SCR

d)

Zener

43.

BJTs are classified as:

a)

Voltage-controlled devices

b)

Current-controlled devices

c)

Light-controlled devices

d)

Temperature-controlled devices

44.

Which device combines the advantages of BJT and MOSFET?

a)

Diode

b)

Thyristor

c)

IGBT

d)

Triac

45.

MOSFETs are mainly used for:

a)

High-frequency switching

b)

AC motors

c)

Low-power lighting

d)

Voltage regulation only

46.

A power converter converts:

a)

Heat into light

b)

Voltage to current

c)

One form of electrical power to another

d)

Mechanical to electrical energy

47.

An inverter converts:

a)

AC to DC

b)

DC to AC

c)

Low voltage to high voltage

d)

Frequency to voltage

48.

What is one key safety precaution when working on EVs?

a)

Use bare hands

b)

Disconnect the 12V battery only

c)

Wear insulated gloves and tools

d)

Keep the ignition ON

49.

Hazard management in EVs includes:

a)

Increasing speed

b)

Replacing sensors

c)

Identifying, assessing, and controlling risks

d)

Using only DC supply

50.

What is the role of sensors in autonomous vehicles?

a)

Increase vehicle weight

b)

Detect surroundings and aid decision-making

c)

Reduce battery life

d)

Increase fuel consumption

51.

LiDAR is commonly used in self-driving cars for:

a)

Audio signals

b)

Speed measurement

c)

Surrounding object detection

d)

Engine cooling

52.

Hacking in autonomous cars poses a risk to:

a)

Fuel economy

b)

Paint quality

c)

Vehicle control and data safety

d)

Tyre pressure

53.

What is the aim of sensorless control methods?

a)

Remove electronic circuits

b)

Control motors without physical position sensors

c)

Increase wire length

d)

Eliminate all controls

54.

15. In Phase Flux Linkage-Based Method, what is estimated?

a)

The phase flux linkage is estimated.

b)

The rotor speed is estimated.

c)

The stator resistance is estimated.

d)

The supply voltage is estimated.

55.

Which parameter is typically estimated in sensorless control of electric motors?

a)

Temperature

b)

Flux linkage and position

c)

Fuel level

d)

GPS location

56.

Which sensorless method uses changes in inductance to estimate rotor position?

a)

GPS method

b)

Modulated signal injection

c)

Phase inductance-based method

d)

LiDAR

57.

In Modulated Signal Injection, what is injected into the motor?

a)

Water

b)

DC current

c)

High-frequency signals

d)

Compressed air

58.

The Mutually Induced Voltage-Based Method relies on:

a)

Permanent magnets

b)

Mutual inductance effects

c)

Mechanical gearboxes

d)

Cooling fans

59.

Observer-based sensorless control methods rely on:

a)

Physical sensors

b)

Mathematical estimators or models

c)

Battery chemistry

d)

Hydraulic control

60.

One advantage of sensorless control in EVs is:

a)

Increased hardware cost

b)

Higher maintenance

c)

Reduced reliability

d)

Lower system complexity and cost

61.

Which type of hybrid vehicle has a small electric motor that assists the engine but cannot power the vehicle alone?

a)

MicroHybrid

b)

MildHybrid

c)

FullHybrid

d)

Plug-inHybrid

62.

A Plug-in Hybrid Electric Vehicle (PHEV) can be charged by:

a)

Regenerative braking only

b)

External electrical power source

c)

Gasoline engine only

d)

None of the above

63.

In a series hybrid layout, the vehicle’s wheels are driven by:

a)

Internal combustion engine directly

b)

Electric motor only

c)

Both engine and motor together mechanically

d)

Regenerative braking system

64.

Which hybrid layout uses both engine and electric motor connected mechanically to drive the wheels?

a)

Series

b)

Parallel

c)

Micro

d)

Mild

65.

What is the primary purpose of regenerative braking in hybrid vehicles?

a)

To improve acceleration

b)

To convert kinetic energy into electrical energy

c)

To reduce engine noise

d)

To increase vehicle weight

66.

Which of the following is a major component in tiny hybrid vehicle propulsion systems?

a)

Fuel cell

b)

Electric motor

c)

Hydraulic pump

d)

Turbocharger

67.

Hybrid electric vehicles help reduce:

a)

Fuel consumption

b)

Engine lifespan

c)

Battery life

d)

Vehicle weight

68.

Which type of hybrid vehicle can operate in all-electric mode for short distances?

a)

Micro Hybrid

b)

Mild Hybrid

c)

Full Hybrid

d)

Series Hybrid

69.

What is a key advantage of Series-Parallel hybrid architecture?

a)

Simplified design

b)

Flexibility to operate as series or parallel hybrid

c)

Uses only electric motor

d)

No regenerative braking

70.

Vibration and noise reduction in hybrid vehicles are mainly due to:

a)

Larger engine size

b)

Use of electric motor during low speeds

c)

Mechanical coupling

d)

Exhaust system design

71.

Micro hybrid vehicles typically feature:

a)

Electric propulsion only

b)

Start-stop system and regenerative braking

c)

Large electric motor assist

d)

Plug-in charging capability

72.

Which control system in HEVs manages power flow between engine, motor, and battery?

a)

Battery Management System

b)

Vehicle Control Unit

73.

Hybrid Electric Vehicles are more economical because they:

a)

Use only electric energy

b)

Reduce fuel consumption through energy recovery and electric assist

c)

Are lighter than conventional vehicles

d)

Use cheaper fuels

74.

The main energy storage device in most hybrid vehicles is:

a)

Flywheel

b)

Supercapacitor

c)

Battery pack

d)

Fuel tank

75.

Which component helps reduce noise and vibration in hybrid electric vehicles?

a)

Regenerative brake system

b)

Electric motor operation at low speed

c)

Larger tires

d)

Manual transmission

76.

Which of the following is NOT a classification of hybrid electric vehicles?

a)

Micro Hybrid

b)

Mild Hybrid

c)

Full Hybrid

d)

Solar Hybrid

77.

The term 'propulsion system' in hybrid vehicles refers to:

a)

Steering and suspension

b)

System that provides vehicle motion using engine and/or electric motor

c)

Air conditioning system

d)

Fuel injection system

78.

What is the main function of the electric motor in a mild hybrid vehicle?

a)

Solely drive the vehicle

b)

Assist the engine and recover energy during braking

c)

Only start the engine

d)

Provide air conditioning power

79.

Which hybrid architecture allows the vehicle to run solely on the engine or motor independently?

a)

Series

b)

Parallel

c)

Series-Parallel

d)

Micro

80.

The control strategy in HEVs aims to:

a)

Maximize fuel consumption

b)

Optimize power delivery and battery usage

c)

Increase emissions

d)

Disable electric motor frequently

81.

What is the primary function of a fuel cell?

a)

Convert chemical energy into electrical energy

b)

Store electrical energy

c)

Convert mechanical energy into heat

d)

Store chemical energy

82.

Which fuel is most commonly used in fuel cells?

a)

Diesel

b)

Hydrogen

c)

Methane

d)

Gasoline

83.

What is the main obstacle for widespread fuel cell adoption?

a)

Low efficiency

b)

High cost and hydrogen storage

c)

Lack of fuel availability

d)

Large size

84.

Which of the following is NOT a type of fuel cell?

a)

Proton Exchange Membrane Fuel Cell (PEMFC)

b)

Solid Oxide Fuel Cell (SOFC)

c)

Lithium-Ion Fuel Cell

d)

Molten Carbonate Fuel Cell (MCFC)

85.

The I-V curve of a fuel cell represents:

a)

the relationship between current and voltage

b)

the efficiency of the fuel cell at different temperatures

c)

the chemical composition of the fuel cell

d)

the amount of fuel consumed over time

86.

Which factor affects the durability of a fuel cell?

a)

Operating temperature

b)

Color of the vehicle

c)

Speed of the vehicle

d)

Tire pressure

87.

Fuel cell efficiency is generally higher than:

a)

Internal combustion engines

b)

Electric batteries

c)

Solar panels

d)

Wind turbines

88.

What is a common component of a fuel cell system?

a)

Battery pack

b)

Electrolyte

c)

Spark plug

d)

Carburetor

89.

Freeze start capability refers to:

a)

Ability to start fuel cell at low temperatures

b)

Ability to store fuel in freezing conditions

c)

Fuel cell shutdown process

d)

Charging battery in cold weather

90.

What is the main output product of a hydrogen fuel cell?

a)

Carbon dioxide

b)

Water vapor

c)

Nitrogen

d)

Oxygen

91.

Fuel consumption in a fuel cell vehicle depends mainly on:

a)

Hydrogen supply rate

b)

Engine size

c)

Battery capacity

d)

Tire size

92.

Which is NOT a typical fuel cell vehicle component?

a)

Fuel cell stack

b)

Hydrogen storage tank

c)

Combustion engine

d)

Power electronics

93.

What is a major maintenance requirement for fuel cell vehicles?

a)

Regular oil changes

b)

Fuel cell stack cleaning and inspection

c)

Spark plug replacement

d)

Transmission fluid changes

94.

What does the power design of a fuel cell vehicle consider?

a)

Required vehicle power and fuel cell stack size

b)

Vehicle color

c)

Number of wheels

d)

Tire pressure

95.

Which technology uses a solid polymer as an electrolyte?

a)

PEM Fuel Cell

b)

Solid Oxide Fuel Cell

c)

Alkaline Fuel Cell

d)

Molten Carbonate Fuel Cell

96.

The lifetime cost of a fuel cell vehicle includes:

a)

Initial cost, maintenance, and fuel cost

b)

Only the fuel cost

c)

Tire replacement cost

d)

Insurance cost only

97.

In fuel cells, oxidation occurs at the:

a)

Anode

b)

Cathode

c)

Electrolyte

d)

Fuel tank

98.

Which of the following is related to operating pressure?

a)

Operating pressure

b)

Vehicle paint

c)

Tire size

d)

Driver's skill

99.

Which fuel cell type operates at the highest temperature?

a)

PEMFC

b)

Solid Oxide Fuel Cell (SOFC)

c)

Alkaline Fuel Cell

d)

Phosphoric Acid Fuel Cell

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