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Mechanical - 540 UNIT 5 Basic Electricity - MCQ

126)   

Which metal is used in electric fuse wire?

A.
B.
C.
D.
Answer: C
127)   

What is used to detect small current in circuits?

A.
B.
C.
D.
Answer: C
128)   

Direction of magnetic field in a straight conductor is found using...? 

A.
B.
C.
D.
Answer: C
129)   

What happens to total current in a parallel circuit?

A.
B.
C.
D.
Answer: B
130)   

What happens to voltage in a series circuit? 

A.
B.
C.
D.
Answer: C
131)   

 Which of the following materials is an insulator? 

A.
B.
C.
D.
Answer: C
132)   

What happens in an open circuit? 

A.
B.
C.
D.
Answer: C
133)   

The resistance of a wire depends on...? 

A.
B.
C.
D.
Answer: D
134)   

Which of the following is used in domestic wiring?

A.
B.
C.
D.
Answer: B
135)   

The device used to store electric charge is...?

A.
B.
C.
D.
Answer: B
136)   

What is the purpose of a resistor in a circuit?

A.
B.
C.
D.
Answer: C
137)   

Which part of the plug is connected to the earth wire?

A.
B.
C.
D.
Answer: C
138)   

Which instrument is used to measure voltage?

A.
B.
C.
D.
Answer: B
139)   

In which connection will one bulb fuse not affect others?

A.
B.
C.
D.
Answer: B
140)   

A device that changes mechanical energy into electrical energy is...? 

A.
B.
C.
D.
Answer: B
141)   

What does Ohm’s Law state? 

A.
B.
C.
D.
Answer: A
142)   

Which factor remains constant in Ohm's Law?

A.
B.
C.
D.
Answer: C
143)   

 EMF is generated due to...? 

A.
B.
C.
D.
Answer: B
144)   

What is the unit of electric energy?

A.
B.
C.
D.
Answer: B
145)   

1 kilowatt-hour = ?

A.
B.
C.
D.
Answer: C
146)   

Magnetic field strength is measured in...? 

A.
B.
C.
D.
Answer: B
147)   

What is mutual inductance?

A.
B.
C.
D.
Answer: C
148)   

 What is the unit of inductance?

A.
B.
C.
D.
Answer: B
149)   

Power = ?

A.
B.
C.
D.
Answer: A
150)   

The filament of an electric bulb is made of...?

A.
B.
C.
D.
Answer: C