ISRO Technician-B Electrician Question Paper - 2019 (Set

ISRO Technician-B Electrician Question Paper - 2019 (Set - 1) with Answer Key

6) The condition for maximum efficiency in transformer is

Answer is:

Copper loss is equal to core loss

7) In a DC generator armature reaction is produced by

Answer is:

Armature current

Explanation:

When the armature of a dc machine carries current i.e. load current in armature, the distributed armature winding produces its own mmf (distributed) known as armature reaction.

8) SWG is used to measure

Answer is:

Diameter

9) ELCB is used to protect the circuit from

Answer is:

Leakage current

10) The line voltage in three phase delta connection

Answer is:

6) The condition for maximum efficiency in transformer is

Copper loss is equal to core loss

7) In a DC generator armature reaction is produced by

Armature current

8) SWG is used to measure

Diameter

9) ELCB is used to protect the circuit from

Leakage current

10) The line voltage in three phase delta connection

Same as the phase voltage