Electrical Engineering MCQ 12

[1] The coulomb is a unit of:
(a) Energy
(b) Voltage
(c) Power
(d) Quantity of electricity

Ans: D

[2] A charge of 240 C is transferred in 2 minutes. The current flowing is:
(a) 480A
(b) 120A
(c) 2A
(d) 8A

Ans: C

[3] A resistance of 50 kΩ has a conductance of:
(a) 20S
(b) 0.02S
(c) 0.02 mS
(d) 20 kS

Ans: C

[4] Which of the following statements is incorrect?
(a) 1N = 1 kgm/s(
(b) 1V = 1 J/C
(c) 30mA = 0.03A
(d) 1 J = 1N/m

Ans:D

[5] The power dissipated by a resistor of 10 ohm when a current of 2A passes through it is:
(a) 0.4W
(b) 20W
(c) 40W
(d) 200W

Ans: C

[6] A mass of 1200g is accelerated at 200 cm/s² by a force. The value of the force required is:
(a) 2.4N
(b) 2400N
(c) 240 kN
(d) 0.24N

Ans: A

[7] A current of 2A flows for 10 hour through a 100 ohm resistor. The energy consumed by the resistor is:
(a) 0.5 kWh
(b) 4 kWh
(c) 2 kWh
(d) 0.02 kWh

Ans:B

[8] The unit of quantity of electricity is the:
(a) volt
(b) coulomb
(c) ohm
(d) joule

Ans: B

[9] Electromotive force is provided by:
(a) Resistance’s
(b) A conducting path
(c) An electric current
(d) An electrical supply source

Ans: C

[10] The unit of current is the:
(a) Volt
(b) Coulomb
(c) Joule
(d) Ampere

Ans: D

[11] In order that work may be done:
(a) Two wires are necessary
(b) The circuit must have a switch
(c) Coal must be burnt
(d) A supply of energy is required

Ans: D

[12] The ohm is the unit of:
(a) Charge
(b) Resistance
(c) Power
(d) Current

Ans: B

[13] The unit of resistivity is:
(a) ohms
(b) ohm millimetre
(c) ohm metre
(d) ohm/metre

Ans : C 

More MCQ - Electrical Notes4u

[14] Voltage drop is the:
(a) Maximum potential
(b) Difference in potential between two points
(c) Voltage at the end of a circuit
(d) Voltage produced by a source

Ans: B

[15] A 240V, 60W lamp has a working resistance of:
(a) 1400 ohm
(b) 60 ohm
(c) 960 ohm
(d) 325 ohm

Ans: C

Solution Hint:
[1] Units
Energy - Watt-hr
Voltage - volts
Power - watts
[2] Current  =  Charge in coulomb/ Time in sec
[3] Conductance = 1/Resistance
[15] P = V²/R

Electrical Engineering MCQ 11

Power Electronics Objective Questions and Answers

[Q-1] When an inductance is inserted in the load circuit of SCR

(a) The turn on time of SCR is increased
(b) Output voltage is reduced for the same firing angle
(c) Conduction continues even after reversal of phase of input voltage
(d) A free wheeling diode is connected in such circuits
Which of the above statements are true?

Electrical Engineering MCQ 10

Multiple Choice Questions with Answers on Power Electronics and Drives

[Q-1] Silicon based rectifiers are preferred than germanium based rectifiers because

(a) Si is available easily compared to Ge

(b) Only Si has a stable off state

(c) Ge is very temperature sensitive

Electtical Engineering MCQ 9

Multiple Choice Questions on Basic Electrical Engineering

[1]  A 240V, 60W lamp has a working resistance of:
(a) 1400Ω
(b) 60Ω
(c) 960Ω
(d) 325Ω

Ans: C

Electrical Engineering MCQ 8

Questions with Answers

[1] Which of the following statements about a three-phase squirrel-cage induction motor are false?
(a) It has no external electrical connections to its rotor
(b) A three-phase supply is connected to its stator
(c) A magnetic flux which alternates is produced
(d) It is cheap, robust and requires little or no skilled maintenance

(1) A,B,C only
(2) C and D only
(3) C only
(4) None of the above
(5) B only

Ans: 3

Electrical Engineering MCQ 7

Questions with Answers

[1] A mulliammeter can be used as
(a) Voltmeter and ammeter
(b) Wattmeter
(c) Ohmmeter
(d) Frequency meter

Ans:A

Electrical Engineering MCQ 6

1. In an alternator, voltage drops occurs in

(A) armature resistance only

(B) armature resistance and leakage reactance

(C) armature resistance, leakage reactance and armature reaction