1. Insulation resistance is measured by ?

ohm meter

ammeter

voltmeter

Megger

Answer: Megger

Explanation:


2. What is the meaning of sweep in case of ceiling fan ?

current rating

voltage rating

blade size

power rating

Answer: blade size

Explanation:


3. The operation of distance relay depends upon ?

distance only

ratio of current to voltage

current only

ratio of voltage to current

Answer: ratio of voltage to current

Explanation:


4. The underground system cannot be operated above ?

440V

11KV

33KV

66KV

Answer: 66KV

Explanation:


5. HRC fuse means ?

High resistance capacitance fuse

High range capacity fuse

High rupturing capacity fuse

High ratio cartridge fuse

Answer: High rupturing capacity fuse

Explanation:


6. How will you change the rotation of DC shunt motor ?

change the field terminal

change the supply terminal

change the armature terminal

any 1 or 3

Answer: any 1 or 3

Explanation:


7. How will you convert galvanometer into ammeter ?

low resistance parallel with galvanometer

low resistance series with galvanometer

high resistance parallel with galvanometer

high resistance series with galvanometer

Answer: low resistance parallel with galvanometer

Explanation:


8. For which of the following DC motors, is the typical field of application mentioned ?

Shunt motor : Electric trains

Series motor : Machine tools

Series motor : Belt drive

Compound motor : Fly wheel drive

Answer: Compound motor : Fly wheel drive

Explanation:


9. High pressure mercury discharge lamps are not used in ?

park

in the street lights of play grounds

stage lighting

drawing room

Answer: drawing room

Explanation:


10. Which of the following lamp gives nearly monochromatic light ?

Sodium vapour lamp

GLS lamp

Tube light

Mercury vapour lamp

Answer: Sodium vapour lamp

Explanation: