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Mechanical - 540 UNIT 5 Basic Electricity - MCQ

1)   

What is the unit of electric current? 

A.
B.
C.
D.
Answer: C
2)   

Which of the following is a good conductor of electricity? 

A.
B.
C.
D.
Answer: C
3)   

In AC, the direction of current changes..

A.
B.
C.
D.
Answer: D
4)   

Which source provides Direct Current (DC)? 

A.
B.
C.
D.
Answer: B
5)   

 What is the formula for Ohm’s Law? 

A.
B.
C.
D.
Answer: A
6)   

In a parallel circuit, the voltage is...

A.
B.
C.
D.
Answer: C
7)   

1 kilowatt-hour (kWh) is equal to how many joules?

A.
B.
C.
D.
Answer: D
8)   

EMF stands for... 

A.
B.
C.
D.
Answer: B
9)   

Self-induction means... 

A.
B.
C.
D.
Answer: D
10)   

What is the electrical energy consumed by a 100 W bulb in 10 hours? 

A.
B.
C.
D.
Answer: A
11)   

Which device converts chemical energy into electrical energy?

A.
B.
C.
D.
Answer: C
12)   

What is the SI unit of resistance? 

A.
B.
C.
D.
Answer: B
13)   

What happens to total resistance in a series circuit?

A.
B.
C.
D.
Answer: B
14)   

 What is the frequency of AC supply in India?

A.
B.
C.
D.
Answer: C
15)   

In which type of circuit does the current remain the same throughout?

A.
B.
C.
D.
Answer: A
16)   

 Which of the following is an insulator?

A.
B.
C.
D.
Answer: D
17)   

Which law states that current is directly proportional to voltage?

A.
B.
C.
D.
Answer: D
18)   

What does a transformer do? 

A.
B.
C.
D.
Answer: C
19)   

What is the power of a device that uses 10 A of current at 220 V?

A.
B.
C.
D.
Answer: A
20)   

1 Horse Power is equal to how many Watts?

A.
B.
C.
D.
Answer: B
21)   

 Which material is used in electric fuse wire? 

A.
B.
C.
D.
Answer: D
22)   

Which instrument measures electric current?

A.
B.
C.
D.
Answer: B
23)   

 In mutual induction, voltage is induced in...

A.
B.
C.
D.
Answer: B
24)   

Resistance depends on which factor? 

A.
B.
C.
D.
Answer: C
25)   

 The rate of doing electrical work is called...

A.
B.
C.
D.
Answer: B