Wayground logo

Free Printable Worksheets

Font size

S
M
L
XL
Worksheets

QuizWhiz 2025

Total questions: 30

Worksheet time: 10mins

Name
Class
Date
1.

Which of the following devices is unidirectional in nature?

a)

SCR

b)

TRIAC

c)

DIAC

d)

MOSFET

2.

A buck converter is used for:

a)

Increasing voltage

b)

Decreasing current

c)

Increasing frequency

d)

Decreasing voltage

3.

Which of the following is a controlled device?

a)

Diode

b)

TRIAC

c)

Resistor

d)

Inductor

4.

Which switching device is best suited for high-frequency applications?

a)

BJT

b)

IGBT

c)

MOSFET

d)

SCR

5.

In a single-phase full-bridge rectifier, the maximum output voltage is:

a)

Equal to input

b)

Double of input

c)

2 × Vm

d)

Vm

6.

What does the term 'commutation' in power electronics refer to?

a)

Signal multiplication

b)

Voltage regulation

c)

Turning off the device

d)

Energy conversion

7.

Which of the following is NOT a renewable energy source?

a)

Biomass

b)

Geothermal

c)

Natural Gas

d)

Solar

8.

Maximum efficiency of a solar panel is achieved at:

a)

Midnight

b)

Sunset

c)

Noon

d)

Cloudy Day

9.

What is the function of an inverter in solar systems?

a)

To store energy

b)

To increase voltage

c)

To convert DC to AC

d)

To collect sunlight

10.

Wind turbines convert:

a)

Mechanical to chemical

b)

Kinetic to electrical

c)

Heat to light

d)

Solar to thermal

11.

The unit of solar radiation is:

a)

Lux

b)

Watts per square meter

c)

Lumen

d)

Watt-hour

12.

The country with the highest installed solar capacity (as of 2024):

a)

USA

b)

China

c)

India

d)

Germany

13.

What happens to current if resistance doubles and voltage remains same?

a)

Doubles

b)

Triples

c)

Halves

d)

Stays same

14.

Which quantity remains the same in a parallel circuit?

a)

Voltage

b)

Current

c)

Resistance

d)

Power

15.

Which material is best conductor of electricity?

a)

Rubber

b)

Silver

c)

Copper

d)

Glass

16.

A fuse is always connected in:

a)

Neutral wire

b)

Ground wire

c)

Series

d)

Parallel

17.

Power factor of purely inductive circuit is:

a)

0

b)

1

c)

0.5

d)

-1

18.

AC means current:

a)

Always positive

b)

Always negative

c)

Changes direction periodically

d)

Is constant

19.

IEEE was founded in:

a)

1884

b)

1912

c)

1963

d)

1981

20.

IEEE stands for:

a)

International Electrical and Electronic Engineers

b)

Institute of Electrical and Electronics Engineers

c)

Indian Electronics and Engineering Experts

d)

International Energy and Engineering Experts

21.

IEEE Day is celebrated in:

a)

March

b)

October

c)

December

d)

January

22.

The IEEE headquarters is located in:

a)

California

b)

New York

c)

Piscataway, New Jersey

d)

Washington D.C.

23.

IEEE Spectrum is:

a)

A magazine

b)

An engineering formula

c)

A programming language

d)

A type of radiation

24.

The PES in IEEE PES stands for:

a)

Power Energy Systems

b)

Power and Electronics Society

c)

Power & Energy Society

d)

Photovoltaic Energy Sector

25.

If CAT = 24 and DOG = 26, then BAT = ?

a)

23

b)

22

c)

25

d)

21

26.

Which number completes the pattern: 2, 6, 12, 20, _

a)

24

b)

28

c)

30

d)

36

27.

If 5 + 3 = 28, 4 + 2 = 20, then 6 + 1 = ?

a)

21

b)

14

c)

18

d)

25

28.

One word does not belong to the group:

a)

Voltage

b)

Power

c)

Ampere

d)

Wire

29.

Ramesh is 5 ranks ahead of Suresh who is 12th in a class. What is Ramesh’s rank?

a)

5th

b)

6th

c)

7th

d)

8th

30.

If BLOOM = 56336, then what is the code for BOOM?

a)

6336

b)

5636

c)

5633

d)

5536