TNPSC Group 1, 2, 4 Previous Year Question Papers with Answers - 1

Question: 1

The unit of impedance is

(A) Ampere

(B) Coulomb

(C) Ohm

(D) Volt

Question: 2

Air chokes are used for

(A) Audio frequency

(B) Microwave frequency

(C) Video frequency

(D) Radio frequency

Question: 3

The device which converts mechanical energy into electrical energy is

(A) generator

(B) motor

(C) rectifier

(D) transformer

Question: 4

Which of the following cannot be stepped up in a transformer?

(A) Input power

(B) Input voltage

(C) Input current

(D) All

Question: 5

In Fleming's right hand rule the finger showing the direction of induced current is

(A) Forefinger

(B) Last finger

(C) Thumb

(D) Middle finger