The power transmitted will be maximum when____________?
The power transmitted will be maximum when____________?
A. corona losses are minimum
B. reactance is high
C. sending end voltage is more
D. receiving end voltage is more
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The use of strain type insulators is made where the conductors are__________?
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 aboveBy which of the following a bus-bar is rated?
By which of the following a bus-bar is rated?
A. Current only
B. Current and voltage
C. Current, voltage and frequency
D. Current, voltage, frequency and short time currentThe distributors for residential areas are______________?
The distributors for residential areas are______________?
A. single phase
B. three-phase three wire
C. three-phase four wire
D. none of the aboveThe voltage regulation in magnetic amplifier type voltage regulator is effected by__________?
The voltage regulation in magnetic amplifier type voltage regulator is effected by__________?
A. electromagnetic induction
B. varying the resistance
C. varying the reactance
D. variable transformerBy which of the following systems electric power may be transmitted ?
By which of the following systems electric power may be transmitted ?
A. Overhead system
B. Underground system
C. Both A. and (b)
D. None of the aboveWhen a conductor carries more current on the surface as compared to core, it is due to___________?
When a conductor carries more current on the surface as compared to core, it is due to___________?
A. permeability variation
B. corona
C. skin effect
D. unsymmetrical fault
E. none of the above