A. single phase
B. three-phase three wire
C. three-phase four wire
D. none of the above
Related Mcqs:
- The loads on distributors systems are generally__________________?
A. balanced
B. unbalanced
C. either of the above
D. none of the above - The voltage of the single phase supply to residential consumers is_____________?
A. 110 V
B. 210 V
C. 230 V
D. 400 V - The use of strain type insulators is made where the conductors are__________?
A. dead ended
B. at intermediate anchor towers
C. any of the above
D. none of the above - For transmission of power over a distance of 200 km, the transmission voltage should be_________kv?
A. 132 kV
B. 66 kV
C. 33 kV
D. 11 kV - The effect of corona can be detected by___________?
A. presence of ozone detected by odour
B. hissing sound
C. faint luminous glow of bluish colour
D. all of the above - When a live conductor of public electric supply breaks down and touches the earth which of the following will happen?
A. Current will flow to earth
B. Supply voltage will drop
C. Supply voltage will increase
D. No current will flow in the conductor
E. None of the above - Galvanised steel wire is generally used as______________?
A. stay wire
B. earth wire
C. structural components
D. all of the above - A booster is a_________________?
A. series wound generator
B. shunt wound generator
C. synchronous generator
D. none of the above - The material commonly used for sheaths of underground cables is______________?
A. lead
B. rubber
C. copper
D. iron - As compared to a 2-wire D.C. distributor, a 3-wire distributor with same maximum voltage to earth uses only__________________?
A. 31.25 percent of copper
B. 33.3 percent of copper
C. 66.7 percent of copper
D. 125 percent of copper
