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Mechanical - 540 UNIT 5 Basic Electricity - MCQ

101)   

What is the unit of EMF (Electromotive Force)? 

A.
B.
C.
D.
Answer: C
102)   

Which of the following is used to protect electrical appliances from damage?

A.
B.
C.
D.
Answer: C
103)   

What is the relation between 1 horsepower and watts? 

A.
B.
C.
D.
Answer: A
104)   

In which circuit will a bulb glow brighter – series or parallel?

A.
B.
C.
D.
Answer: B
105)   

What does an electric motor do?

A.
B.
C.
D.
Answer: A
106)   

Which of the following materials is a poor conductor of electricity?

A.
B.
C.
D.
Answer: C
107)   

 A circuit with only one path for current to flow is...? 

A.
B.
C.
D.
Answer: B
108)   

Who gave the right-hand rule for generators?

A.
B.
C.
D.
Answer: B
109)   

Resistance depends on...?

A.
B.
C.
D.
Answer: D
110)   

Which instrument is used to vary resistance in a circuit?

A.
B.
C.
D.
Answer: B
111)   

What is the function of a transformer?

A.
B.
C.
D.
Answer: C
112)   

Which among the following is a good conductor of electricity? 

A.
B.
C.
D.
Answer: C
113)   

Magnetic field is produced around...?

A.
B.
C.
D.
Answer: C
114)   

Unit of electric charge is...? 

A.
B.
C.
D.
Answer: C
115)   

Which of the following uses electromagnetic induction?

A.
B.
C.
D.
Answer: A
116)   

The electric current in a conductor is due to...? 

A.
B.
C.
D.
Answer: C
117)   

An electric iron converts...?

A.
B.
C.
D.
Answer: B
118)   

 What is the purpose of earthing? 

A.
B.
C.
D.
Answer: B
119)   

If a fuse blows, what should you do first? 

A.
B.
C.
D.
Answer: C
120)   

 What does a voltmeter measure?

A.
B.
C.
D.
Answer: C
121)   

A short circuit occurs when...? 

A.
B.
C.
D.
Answer: C
122)   

A conductor has free...? 

A.
B.
C.
D.
Answer: C
123)   

Which one of the following is a unit of resistance?

A.
B.
C.
D.
Answer: A
124)   

What does LED stand for? 

A.
B.
C.
D.
Answer: B
125)   

What happens to current when resistance increases (constant voltage)? 

A.
B.
C.
D.
Answer: B