DC Electrics - Generators and Alternators: DGCA Technical General questions

Question 1

An EMF is induced in a conductor rotating in a magnetic field by:

Accepted Answer

Electromagnetic induction

Answer

Capacitive reaction

Answer

The reverse current relay

Answer

Electro transmission

Question 2

Magnetic field strength is controlled by:

Accepted Answer

Current in the field coil

Answer

Battery bus bar current

Answer

Current in the armature

Answer

Current flow to the battery

Question 3

If a conductor is placed in a magnetic field:

Accepted Answer

An EMF is induced in the conductor only when the conductor rotates

Answer

An EMF is induced in the conductor

Answer

The applied resistance assists the back EMF

Answer

An EMF is induced in the conductor only when the conductor is stationary

Question 4

The output of a basic generator before commutation is:

Accepted Answer

AC

Answer

DC and after commutation is AC

Answer

DC

Answer

Synchronized AC and DC

Question 5

An internally excited generator is one where:

Accepted Answer

The field is initiated within the generator

Answer

The field is produced within the distribution

Answer

The field is initiated by a HT and LT coil

Answer

The field is initiated by the battery

15 more questions in this chapter, free with an account