A booster is a_________________?
A booster is a_________________?
A. series wound generator
B. shunt wound generator
C. synchronous generator
D. none of the above
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When a live conductor of public electric supply breaks down and touches the earth which of the following will happen?
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 aboveIn a substation the following equipment is not installed?
In a substation the following equipment is not installed?
A. exciters
B. series capacitors
C. shunt reactors
D. voltatre transformersWhich of the following distribution systems is more reliable?
Which of the following distribution systems is more reliable?
A. Radial system
B. Tree system
C. Ring main system
D. All are equally reliableWhich of the following is not a constituent for making porcelain insulators ?
Which of the following is not a constituent for making porcelain insulators ?
A. Quartz
B. Kaolin
C. Felspar
D. SilicaThe material commonly used for sheaths of underground cables is______________?
The material commonly used for sheaths of underground cables is______________?
A. lead
B. rubber
C. copper
D. ironA conductor, due to sag between two supports, takes the form of____________?
A conductor, due to sag between two supports, takes the form of____________?
A. semi-circle
B. triangle
C. ellipse
D. catenary