Quiz about EVT QUIZ

Question 1

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

Accepted Answer

To reduce air pollution and dependence on fossil fuels

Answer

To increase fuel consumption

Answer

To make vehicles heavier

Answer

To reduce vehicle cost only

Question 2

Which of the following is a type of electric vehicle?

Accepted Answer

Hybrid Electric Vehicle (HEV)

Answer

Internal Combustion Engine Vehicle

Answer

Steam Engine Vehicle

Answer

Bio-fuel Vehicle

Question 3

Compared to petrol/diesel vehicles, EVs generally have:

Accepted Answer

Lower cost and zero emissions

Answer

Higher tailpipe emissions

Answer

More complex engines

Answer

Higher noise levels

Question 4

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

Accepted Answer

It is recycled or repurposed

Answer

It is burned completely

Answer

It turns into a hybrid

Answer

It becomes a petrol vehicle

Question 5

Which of the following is part of EV technology?

Accepted Answer

Electric Motor

Answer

Gearbox

Answer

Carburetor

Answer

Fuel Tank

Question 6

Which layout is common in EVs?

Accepted Answer

In-wheel motor layout

Answer

Engine at the front and fuel tank at the rear

Answer

Rear engine with carburetor

Answer

Front-engine with gear clutch

Question 7

What kind of cables are used in EV charging systems?

Accepted Answer

Charging cables (Type 1, Type 2, CCS)

Answer

Audio cables

Answer

Coaxial cables

Answer

LAN cables

Question 8

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

Accepted Answer

Battery pack

Answer

Radiator

Answer

Starter motor

Answer

Exhaust pipe

Question 9

What is the role of controls in electric vehicles?

Accepted Answer

To manage power delivery from battery to motor

Answer

To control headlights

Answer

To cool the fuel

Answer

To refill fuel

Question 10

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

Accepted Answer

Lithium-ion

Answer

Lead-acid

Answer

Nickel-Cadmium

Answer

Alkaline

Question 11

Which of these is NOT a type of EV battery?

Accepted Answer

Gasoline

Answer

Lithium-ion

Answer

Nickel Metal Hydride

Answer

Lead-acid

Question 12

What does "battery plug-in" refer to?

Accepted Answer

Plugging charger into the battery for charging

Answer

Plugging battery to motor

Answer

Connecting fuel pipe

Answer

Refilling battery acid

Question 13

Typical EV battery life ranges between:

Accepted Answer

6 to 10 years

Answer

6 months to 1 year

Answer

3 to 5 years

Answer

20 years

Question 14

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

Accepted Answer

Charges and discharges rapidly

Answer

Provides fuel backup

Answer

Stores charge very slowly

Answer

Works without any electricity

Question 15

Which of the following is a standard EV charging method?

Accepted Answer

Level 1, Level 2, DC Fast Charging

Answer

Level 0

Answer

Thermal charging

Answer

Mechanical charging

Question 16

Which is an alternate EV charging source?

Accepted Answer

Solar energy

Answer

Petrol

Answer

Diesel

Answer

Kerosene

Question 17

Wireless charging uses which of the following principles?

Accepted Answer

Magnetic induction

Answer

Friction

Answer

Combustion

Answer

Optical reflection

Question 18

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

Accepted Answer

Controller

Answer

Radiator

Answer

Air filter

Answer

Crankshaft

Question 19

What is the environmental benefit of using EVs?

Accepted Answer

Reduced carbon emissions

Answer

Increased engine temperature

Answer

High vibration levels

Answer

Loud engine sounds

Question 20

Why is the cost of running an electric vehicle lower than that of a petrol vehicle?

Accepted Answer

Electric vehicles have fewer moving parts and lower maintenance costs, and electricity is cheaper than petrol or diesel.

Answer

Electric vehicles are heavier and therefore consume more energy, increasing efficiency.

Answer

Electric vehicles require premium fuels that reduce costs.

Answer

Electric vehicles pay higher road taxes which lowers running costs.

Question 21

How do electric vehicles contribute to reducing greenhouse gas emissions?

Accepted Answer

They produce zero tailpipe emissions and can use cleaner energy sources, reducing overall greenhouse gas emissions.

Answer

They produce more carbon dioxide than diesel vehicles.

Answer

They burn diesel more efficiently than petrol cars.

Answer

They use leaded petrol which lowers emissions.

Question 22

What is the function of the Battery Management System (BMS) in an EV?

Accepted Answer

It monitors battery temperature, voltage, and current, ensuring safe charging, discharging, and overall battery protection.

Answer

It inflates the tires automatically.

Answer

It controls the windshield wipers.

Answer

It tunes the infotainment system.

Question 23

What are the advantages of using solar panels for EV charging?

Accepted Answer

Solar charging is renewable, eco-friendly, reduces dependence on the electricity grid, and can lower long-term energy costs.

Answer

Solar charging increases vehicle noise levels.

Answer

Solar charging requires large amounts of fossil fuels to operate.

Answer

Solar charging is illegal in most countries.

Question 24

What is the role of the inverter in electric vehicles?

Accepted Answer

It converts DC from the battery into AC to power the electric motor.

Answer

It stores energy in the battery cells.

Answer

It converts AC to DC for the battery.

Answer

It changes gear ratios mechanically.

Question 25

What is the Combined Charging System (CCS) in EVs?

Accepted Answer

A universal fast-charging standard that combines AC and DC charging in one plug, enabling high-power charging.

Answer

A specific lithium-ion battery chemistry used in EVs.

Answer

A government tax rebate program for EVs.

Answer

A regenerative braking subsystem.

Question 26

What is a typical end-of-life use of EV batteries?

Accepted Answer

They are reused in stationary energy storage systems or recycled to recover materials like lithium and cobalt.

Answer

They are sent directly to landfills without processing.

Answer

They are converted into gasoline for reuse.

Answer

They are repurposed as replacement oil filters.

Question 27

Select the two safety features found in EV charging cables.

Accepted Answer

Temperature sensors to prevent overheating

Accepted Answer

Locking mechanisms to avoid accidental disconnection

Answer

Decorative LED lights for aesthetics

Answer

Fragile housings to reduce weight

Question 28

How does an ultra-capacitor support EV acceleration?

Accepted Answer

It releases energy quickly, providing a sudden power boost during acceleration and reducing load on the main battery

Answer

It slowly charges the main battery over long trips

Answer

It converts AC to DC for onboard electronics

Answer

It stores energy long-term to improve range by itself

Question 29

Which option correctly identifies types of EVs and a key environmental and economic benefit?

Accepted Answer

Battery Electric Vehicles (BEV), Hybrid Electric Vehicles (HEV), and Plug-in Hybrid Electric Vehicles (PHEV); lower tailpipe emissions and reduced fuel costs

Answer

Fuel Cell Vehicles (FCV) only; higher tailpipe emissions and increased fuel costs

Answer

Conventional ICE vehicles only; zero tailpipe emissions and reduced electricity costs

Answer

BEV and diesel hybrids only; increased maintenance costs and higher emissions

Question 30

Which are key components of an electric vehicle involved in propulsion and control? Select all that apply.

Accepted Answer

Traction motor

Accepted Answer

Battery pack

Accepted Answer

Power inverter/controller

Answer

Sunroof

Question 31

Which statement accurately characterizes ultra-capacitor charging, wireless charging, and solar charging in EV contexts?

Accepted Answer

Ultra-capacitors charge rapidly and deliver high power; wireless charging uses inductive coupling; solar charging uses photovoltaic panels to convert sunlight to electricity

Answer

Ultra-capacitors charge slowly; wireless charging requires a physical cable; solar charging relies on wind energy

Answer

Ultra-capacitors store large amounts of energy long-term; wireless charging depends on combustion; solar charging needs grid power

Answer

Ultra-capacitors cannot be recharged; wireless charging works only while driving at highway speeds; solar charging emits tailpipe gases

Question 32

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

Accepted Answer

BLDC Motor

Answer

DC Motor

Answer

Induction Motor

Answer

Universal Motor

Question 33

What does BLDC stand for?

Accepted Answer

Brushless Direct Current

Answer

Binary Locked Direct Current

Answer

Bi-Level Direct Current

Answer

Basic Line Controller

Question 34

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

Accepted Answer

Current and magnetic field

Answer

Electric field and magnetic field

Answer

Magnetic field and mechanical power

Answer

Heat and current

Question 35

The rotor in an induction motor rotates due to:

Accepted Answer

Magnetic induction from the stator

Answer

Permanent magnets

Answer

External excitation

Answer

DC current supply

Question 36

BLDC motors do not have:

Accepted Answer

Brushes

Answer

Windings

Answer

Magnets

Answer

Shaft

Question 37

In BLDC motors, what replaces the mechanical commutator?

Accepted Answer

Electronic controller

Answer

Gearbox

Answer

Slip rings

Answer

Capacitor

Question 38

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

Accepted Answer

Electrical

Answer

Mechanical

Answer

Hydraulic

Answer

Pneumatic

Question 39

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

Accepted Answer

Mechanical coupling

Answer

Electrical coupling

Answer

Magnetic coupling

Answer

Chemical coupling

Question 40

What does EDT stand for in electric vehicles?

Accepted Answer

Electric Drive Train

Answer

Electronic Drive Transmission

Answer

Energy Distribution Terminal

Answer

Engine Drive Test

Question 41

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

Accepted Answer

Supercapacitor

Answer

Engine

Answer

Battery pack

Answer

Gearbox

Question 42

In torque coupling, the engine and motor contribute to:

Accepted Answer

Combined torque to the wheels

Answer

Same power at different times

Answer

Different torque at different times

Answer

Only motor torque

Question 43

In speed coupling, the engine and motor:

Accepted Answer

Operate at different speeds but share load

Answer

Operate at same speed

Answer

Operate independently

Answer

Are mechanically locked

Question 44

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

Accepted Answer

Steam Motor

Answer

DC Motor

Answer

Induction Motor

Answer

Synchronous Reluctance Motor

Question 45

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

Accepted Answer

Simple construction and ruggedness

Answer

High cost

Question 46

What type of drive converter is used for SRM?

Accepted Answer

Inverter with asymmetric bridge converter

Answer

AC to DC

Answer

DC to AC motor starter

Answer

BLDC commutator

Question 47

In SRM, torque is generated due to:

Accepted Answer

Magnetic attraction between stator and rotor poles

Answer

Heat and friction

Answer

Permanent magnets

Answer

DC brush action

Question 48

The rotor of an SRM has:

Accepted Answer

No windings or magnets

Answer

Permanent magnets

Answer

Field windings

Answer

Carbon brushes

Question 49

Which one of the following motors is easiest to manufacture?

Accepted Answer

SRM

Answer

BLDC

Answer

Induction Motor

Answer

DC Motor

Question 50

Power rating design of EV motors depends on:

Accepted Answer

Vehicle weight and performance needs

Answer

Colour of the motor

Answer

Number of wheels

Answer

Air pressure in tyres

Question 51

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

Accepted Answer

BLDC Motor

Answer

DC Series Motor

Answer

Stepper Motor

Answer

Synchronous Generator

Question 52

Why is power rating design important in EV motors?

Accepted Answer

It ensures the motor meets the required performance, efficiency, and thermal limits for the specific vehicle application.

Answer

It reduces vehicle weight regardless of performance needs.

Answer

It eliminates the need for any cooling system in the vehicle.

Answer

It allows only bidirectional energy flow control in the powertrain.

Question 53

Which statement best describes the working principle and construction of DC motors used in electric vehicles?

Accepted Answer

Torque is produced by the interaction of armature current with the magnetic field, and a commutator with brushes provides mechanical commutation between armature windings.

Answer

Torque is produced solely by variable reluctance with stator-only excitation and no commutation is required.

Answer

Torque arises from induction in a squirrel-cage rotor with no need for a commutator or brushes.

Answer

The motor relies only on permanent magnets with no current in the armature and no commutation.

Question 54

Which statements correctly characterize Series Hybrid Electric Drive Trains (HEDTs) and Parallel Hybrid Electric Drive Trains (HEDTs)?

Accepted Answer

In a series hybrid, the engine drives a generator and only the electric motor propels the wheels.

Accepted Answer

In a parallel hybrid, both the engine and the electric motor can provide torque to the wheels.

Answer

In a series hybrid, mechanical coupling from the engine to the wheels is mandatory.

Answer

In a parallel hybrid, the engine never connects mechanically to the wheels.

Question 55

Which statement best explains the working principle and key design considerations of Switched Reluctance Motor (SRM) drives used in electric vehicles?

Accepted Answer

SRMs produce torque by the rotor aligning to minimize reluctance when stator phases are sequentially energized; they commonly require rotor position sensing and use asymmetric half-bridge converters.

Answer

SRMs rely on induced rotor currents and slip like induction motors; no position sensing is needed and a single H-bridge is sufficient.

Answer

SRMs operate purely as permanent-magnet machines with sinusoidal back-EMF; vector control eliminates the need for power electronics.

Answer

SRMs require mechanical commutators and brushes for torque production and do not use electronic switching.

Question 56

Which of the following is a unidirectional semiconductor device?

Accepted Answer

SCR

Answer

TRIAC

Answer

DIAC

Answer

UJT

Question 57

A thyristor is also known as:

Accepted Answer

SCR

Answer

BJT

Answer

Triac

Answer

Zener

Question 58

BJTs are classified as:

Accepted Answer

Current-controlled devices

Answer

Voltage-controlled devices

Answer

Light-controlled devices

Answer

Temperature-controlled devices

Question 59

Which device combines the advantages of BJT and MOSFET?

Accepted Answer

IGBT

Answer

Diode

Answer

Thyristor

Answer

Triac

Question 60

MOSFETs are mainly used for:

Accepted Answer

High-frequency switching

Answer

AC motors

Answer

Low-power lighting

Answer

Voltage regulation only

Question 61

A power converter converts:

Accepted Answer

One form of electrical power to another

Answer

Heat into light

Answer

Voltage to current

Answer

Mechanical to electrical energy

Question 62

An inverter converts:

Accepted Answer

DC to AC

Answer

AC to DC

Answer

Low voltage to high voltage

Answer

Frequency to voltage

Question 63

What is one key safety precaution when working on EVs?

Accepted Answer

Wear insulated gloves and tools

Answer

Use bare hands

Answer

Disconnect the 12V battery only

Answer

Keep the ignition ON

Question 64

Hazard management in EVs includes:

Accepted Answer

Identifying, assessing, and controlling risks

Answer

Increasing speed

Answer

Replacing sensors

Answer

Using only DC supply

EVT QUIZ

Create a free account and access millions of resources

Popular Resources on Wayground

Discover more resources for Science