MCQ - TNPSC JTO
JTO - 540 - Trade - Workshop Calculation Science
540 UNIT 5 Basic Electricity
113)
Magnetic field is produced around...?
A.
B.
C.
D.
114)
Unit of electric charge is...?
A.
B.
C.
D.
115)
Which of the following uses electromagnetic induction?
A.
B.
C.
D.
116)
The electric current in a conductor is due to...?
A.
B.
C.
D.
117)
An electric iron converts...?
A.
B.
C.
D.
118)
What is the purpose of earthing?
A.
B.
C.
D.
119)
If a fuse blows, what should you do first?
A.
B.
C.
D.
120)
What does a voltmeter measure?
A.
B.
C.
D.
121)
A short circuit occurs when...?
A.
B.
C.
D.
122)
A conductor has free...?
A.
B.
C.
D.
123)
Which one of the following is a unit of resistance?
A.
B.
C.
D.
124)
What does LED stand for?
A.
B.
C.
D.
125)
What happens to current when resistance increases (constant voltage)?
A.
B.
C.
D.
126)
Which metal is used in electric fuse wire?
A.
B.
C.
D.
127)
What is used to detect small current in circuits?
A.
B.
C.
D.
128)
Direction of magnetic field in a straight conductor is found using...?
A.
B.
C.
D.