electrical

Basic Electrical Engineering MCQ Questions With Answers Page - 1

1.

The flow of current in solids is due to

Answer/ Hint       Comment On Question

Answer : A

Explanation :

2.

The resistance of human body is around

Answer/ Hint      

Answer : D

Explanation :

3.

The draft velocity of the electron is

Answer/ Hint      

Answer : A

Explanation :

4.

One commercial unit of energy equals

Answer/ Hint       Comment On Question

Answer : C

Explanation :

5.

The electrical energy required to heat a bucket of water to a certain temperature is  4 kWh. If the heat losses are 20 percent, the energy input is

Answer/ Hint      

Answer : C

Explanation :

6.

In gases the flow of current is due to

Answer/ Hint      

Answer : D

Explanation :

7.

The maximum current rating for a 10KΩ, 0.5 W resistor is

Answer/ Hint      

Answer : B

Explanation :

8.

An electrical lamp consumes 100 W of power. If the supply voltage is  220 V  the energy consumed in  30 minutes is

Answer/ Hint      

Answer : B

Explanation :

9.

The S.I. unit of power is

Answer/ Hint      

Answer : C

Explanation :

10.

Electric pressure is also called

Answer/ Hint      

Answer : C

Explanation :

11.

The substances which have a large number of free electrons and offer a low resistance are called

Answer/ Hint      

Answer : D

Explanation :

12.

Out of the following which is not a poor conductor?

Answer/ Hint      

Answer : B

Explanation :

13.

Out of the following which is an insulating material?

Answer/ Hint      

Answer : D

Explanation :

14.

The property of a conductor due to which it passes current is called

Answer/ Hint       Comment On Question

Answer : C

Explanation :

15.

Conductance is reciprocal of

Answer/ Hint      

Answer : A

Explanation :

16.

The resistance of a conductor caries inversely as

Answer/ Hint      

Answer : B

Explanation :

17.

With rise in temperature the resistance of pure metals

Answer/ Hint      

Answer : A

Explanation :

18.

With in temperature the resistance of semi-conductors

Answer/ Hint      

Answer : A

Explanation :

19.

Three resistances of 10 ohms, 15 ohms and 30 ohms are connected in parallel. The total resistance of the combination is

Answer/ Hint      

Answer : A

Explanation :

20.

The resistance of two wires is 25 Ω when connected in series and  6 Ω  when joined in parallel. The resistance of each wire is

Answer/ Hint      

Answer : A

Explanation :

21.

An instrument which detects electric current in known as

Answer/ Hint       Comment On Question

Answer : D

Explanation :

22.

In a circuit a 33 Ω  resistor carries a current of  2 A. the voltage across the resistor is

Answer/ Hint      

Answer : B

Explanation :

23.

A light bulb draws  300 mA when the voltage across it is  240 V. The resistance of the light bulb is

Answer/ Hint      

Answer : C

Explanation :

24.

The resistance of a parallel circuit consisting of two branches is 12 ohms. If the resistance of one branch is  18 ohms, what is the resistance of the other?

Answer/ Hint      

Answer : B

Explanation :

25.

Current velocity through a copper conductor is

Answer/ Hint      

Answer : C

Explanation :

26.

Which of the following material has nearly zero temperature co-efficient of resistance?

Answer/ Hint      

Answer : A

Explanation :

27.

You have to replace 1500 Ω resistor in radio. You have no 1500 Ω resistor but have several  1000 Ω  ones which you would connect

Answer/ Hint      

Answer : B

Explanation :

28.

Two resistor are said to be connected in series when

Answer/ Hint      

Answer : A

Explanation :

29.

Which of the following statement is true both for a series and a parallel  DC circuit?

Answer/ Hint      

Answer : D

Explanation :

30.

OHM’S law is not applicable to

Answer/ Hint      

Answer : A

Explanation :

31.

Which is the best conductor of electricity?

Answer/ Hint      

Answer : B

Explanation :

32.

Which of the following can be have negative temperature coefficient?

Answer/ Hint      

Answer : D

Explanation :

33.

Conductance: mho ::

Answer/ Hint      

Answer : A

Explanation :

34.

  1 angstrom is equal to

Answer/ Hint      

Answer : C

Explanation :

35.

One newton meter is same as

Answer/ Hint      

Answer : B

Explanation :

Basic Electrical Engineering MCQ Questions With Answers Page - 1
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