Month: December 2018

A. 100 microsecond
B. 50 millisecond
C. 0.5 sec
D. 0.1 sec

A. negative circuit only
B. positive circuit only
C. both (A) and (B)
D. either (A) or (B)

A. neutral wire
B. negative of D.C. circuit
C. positive of D.C. circuit
D. phase dine

A. interrupting an electrical circuit
B. switching an electrical circuit 111.
C. switching and controlling an electrical circuit
D. switching, controlling and protecting the electrical circuit and equipment

A. relay
B. rewirable fuse
C. H.R.C. only
D. all of the above

A. Radiation
B. Convection
C. Conduction
D. All of the above

A. zero sequence currents only
B. positive sequence currents only
C. negative and zero sequence currents
D. zero, negative and positive sequence currents

A. no current flow
B. heavy current flow
C. voltage drop
D. voltage rise

A. earth wires
B. isolators
C. H.R.C. fuses
D. reactors

A. fault occurs on the bus itself
B. fault occurs on neutral line
C. two or more faults occur simultaneously
D. fault occurs with respect to earthing