WorksheetsQuizWhiz 2025
Total questions: 30
Worksheet time: 10mins
Which of the following devices is unidirectional in nature?
SCR
TRIAC
DIAC
MOSFET
A buck converter is used for:
Increasing voltage
Decreasing current
Increasing frequency
Decreasing voltage
Which of the following is a controlled device?
Diode
TRIAC
Resistor
Inductor
Which switching device is best suited for high-frequency applications?
BJT
IGBT
MOSFET
SCR
In a single-phase full-bridge rectifier, the maximum output voltage is:
Equal to input
Double of input
2 × Vm
Vm
What does the term 'commutation' in power electronics refer to?
Signal multiplication
Voltage regulation
Turning off the device
Energy conversion
Which of the following is NOT a renewable energy source?
Biomass
Geothermal
Natural Gas
Solar
Maximum efficiency of a solar panel is achieved at:
Midnight
Sunset
Noon
Cloudy Day
What is the function of an inverter in solar systems?
To store energy
To increase voltage
To convert DC to AC
To collect sunlight
Wind turbines convert:
Mechanical to chemical
Kinetic to electrical
Heat to light
Solar to thermal
The unit of solar radiation is:
Lux
Watts per square meter
Lumen
Watt-hour
The country with the highest installed solar capacity (as of 2024):
USA
China
India
Germany
What happens to current if resistance doubles and voltage remains same?
Doubles
Triples
Halves
Stays same
Which quantity remains the same in a parallel circuit?
Voltage
Current
Resistance
Power
Which material is best conductor of electricity?
Rubber
Silver
Copper
Glass
A fuse is always connected in:
Neutral wire
Ground wire
Series
Parallel
Power factor of purely inductive circuit is:
0
1
0.5
-1
AC means current:
Always positive
Always negative
Changes direction periodically
Is constant
IEEE was founded in:
1884
1912
1963
1981
IEEE stands for:
International Electrical and Electronic Engineers
Institute of Electrical and Electronics Engineers
Indian Electronics and Engineering Experts
International Energy and Engineering Experts
IEEE Day is celebrated in:
March
October
December
January
The IEEE headquarters is located in:
California
New York
Piscataway, New Jersey
Washington D.C.
IEEE Spectrum is:
A magazine
An engineering formula
A programming language
A type of radiation
The PES in IEEE PES stands for:
Power Energy Systems
Power and Electronics Society
Power & Energy Society
Photovoltaic Energy Sector
If CAT = 24 and DOG = 26, then BAT = ?
23
22
25
21
Which number completes the pattern: 2, 6, 12, 20, _
24
28
30
36
If 5 + 3 = 28, 4 + 2 = 20, then 6 + 1 = ?
21
14
18
25
One word does not belong to the group:
Voltage
Power
Ampere
Wire
Ramesh is 5 ranks ahead of Suresh who is 12th in a class. What is Ramesh’s rank?
5th
6th
7th
8th
If BLOOM = 56336, then what is the code for BOOM?
6336
5636
5633
5536
