27) A thrite type lightning arrester

Blocks the surge voltage appearing in a line

Absorbs the surge voltage appearing in a line

Offers a low resistance path to the surge

Returns surge back to the source

Answer is:

Offers a low resistance path to the surge

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

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28) What is the ripple frequency of 415 V, 50Hz, 3-phase full wave rectifier

100

150

300

Answer is:

300

29) In a motor generator set, the type of AC motor used is

Squirrel cage induction motor

Wound rotor induction motor

AC Commutator motor

Synchronous motor

Answer is:

Squirrel cage induction motor

30) Two pin sockets should not be used in domestic wiring unless the appliance to be connected iss

Double earthed

Double insulated

Controlled by ELCB

Controlled by MCB

Answer is:

Double insulated

31) Which type of wiring is suitable for multi-storey building

Tree system

Ring main system

Distribution board system

Ring main and distribution board system

Answer is:

Tree system

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

For more MCQ's Click Here

27) A thrite type lightning arrester

Offers a low resistance path to the surge

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

Related ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key

28) What is the ripple frequency of 415 V, 50Hz, 3-phase full wave rectifier

300

29) In a motor generator set, the type of AC motor used is

Squirrel cage induction motor

30) Two pin sockets should not be used in domestic wiring unless the appliance to be connected iss

Double insulated

31) Which type of wiring is suitable for multi-storey building

Tree system

ISRO Technician-B Electrician Question Paper - 2016 (Set - 1) with Answer Key