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Knowledge / Trivia tests -» Physics -» Energy / Electricity

Electrical Engineering

10 Questions - Developed by: - Developed on: 2022-02-28 - 203 taken

1

Which of the following systems uses “Assembly language”?

D) FPGA
A) SCADA
B) Microcontrollers
E) Both A&B
C) ASIC

2

Coefficient of performance of a refrigerator that consumes 800 watts of power to remove heat at a rate of 5
BTU per second.

8.2
6.6
4.6
3.5

3

Humming happening in a Transformer due to

Due to the Vibration in winding
Due to magnetostriction in core laminations
Due to the Vibration in brush
None of the above

4

Surge voltage originate in a power system due to

Any of the above
Faults
Switching operations
Lightning

5

Uninterruptable power system (UPS) has to be connected to the network by

Series to feed electrical power at normal time
Parallel to feed electrical power at critical time
Parallel to feed electrical power at normal time
Series to feed electrical power at critical time

6

Which of the following is used in rectifying circuits

PJT Transistor
Zener Diode
FET Transistor
Diode

7

What is the sum of the interior angles of a hexagon?

180
940
320
720

8

The main difference between MOSFET and BJT is

BJT is bigger in size and dimensions
The geometry is bigger in BJT
MOSFET has better gain

9

Output impedance in a cascaded amplifier is:

Resistance at last stage
Resistance before last stage
Resistance before first stage
Resistance at first stage

10

CMOS is better than BJT because it has

Has better response
High I/P impedance
Bandwidth
Stability

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