The operating voltage of supertension cables is up to_________________?
The operating voltage of supertension cables is up to_________________?
A. 3.3 kV
B. 6.6 kV
C. 11 kV
D. 33 kV
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When 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 aboveBesides a method of trial and error, which of the following methods is employed for solution of network problems in interconnected system ?
Besides a method of trial and error, which of the following methods is employed for solution of network problems in interconnected system ?
A. Circulating current method
B. Thevenin’s theorem
C. Superposition of currents
D. Direct application of Kirehhoffs laws
E. All of the aboveWhen an alternator connected to the bus-bar is shut down the bus-bar voltage will___________?
When an alternator connected to the bus-bar is shut down the bus-bar voltage will___________?
A. fall
B. rise
C. remain unchanged
D. none of the aboveOverhead system can be designed for operation up to____________?
Overhead system can be designed for operation up to____________?A. 11 kV
B. 33 kV
C. 66 kV
D. 400 kVFor transmission of power over a distance of 200 km, the transmission voltage should be_________kv?
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 kVThe power factor of industrial loads is generally______________?
The power factor of industrial loads is generally______________?
A. unity
B. lagging
C. leading
D. zero