MCQ - TNPSC JTO
JTO - 540 - Trade - Workshop Calculation Science
540 UNIT 5 Basic Electricity
81)
A device that opposes the flow of current is called...?
A.
B.
C.
D.
82)
The flow of electrons in a circuit is called...?
A.
B.
C.
D.
83)
Which of the following is a source of AC current?
A.
B.
C.
D.
84)
What is the EMF of a cell?
A.
B.
C.
D.
85)
In Ohm’s law, V = IR. If I = 0, then V = ?
A.
B.
C.
D.
86)
1 kilowatt-hour is equal to...?
A.
B.
C.
D.
87)
Which of these wires is usually connected to the metal body of appliances?
A.
B.
C.
D.
88)
In which connection does the failure of one component stop the whole circuit?
A.
B.
C.
D.
89)
What is the role of an MCB (Miniature Circuit Breaker)?
A.
B.
C.
D.
90)
If the resistance increases, the current will...?
A.
B.
C.
D.
91)
Which among the following is NOT a conductor?
A.
B.
C.
D.
92)
What does a capacitor store?
A.
B.
C.
D.
93)
What is the SI unit of power?
A.
B.
C.
D.
94)
What is the symbol for an electric cell?
A.
B.
C.
D.
95)
Energy = Power × _______?
A.
B.
C.
D.
96)
What is used to convert DC to AC?
A.
B.
C.
D.