TNPSC VAO Previous Year Question Papers with Answers - 2

Question: 6

The power loss is less in transmission lines when

(A) voltage is less but current is more

(B) voltage is more but current is less

(C) both voltage and current are more

(D) voltage is less but current is more

Question: 7

The alternating emf induced in the coil varies

(A) periodically in both magnitude and direction

(B) randomly in both magnitude and direction

(C) periodically in direction only

(D) periodically in magnitude only

Question: 8

An AC generator converts _____ into electrical energy.

(A) magnetic energy

(B) mechanical energy

(C) sound energy

(D) vibrational energy

Question: 9

The part of the AC generator that passes the current from the coil to the external circuit is

(A) slip rings

(B) split rings

(C) brushes

(D) field magnet

Question: 10

In an induction furnace, high temperature is produced by

(A) the burning of the fuel

(B) using transformer

(C) generating eddy currents

(D) none of these