ISRO Technician-B Electrician Question Paper - 2017 (Set - 1) with Answer Key

Overhead system is safer

Underground system is more prone to faults

Overhead system is cheaper

Underground system is easy to maintain

(+/-) 5%

(+/-) 6%

(+/-) 10%

(+/-) 15%

Through split rings

Through slip rings

Through direct connection

Through commutator

Electrical line under voltage

Electrical line over current

Earth leakage

Electrical line over voltage

Set of MCBs

Set of GFCIs

Set of ELCBs

A combination of ELCB and MCB