The voltage of the single phase supply to residential consumers is_____________?
The voltage of the single phase supply to residential consumers is_____________?
A. 110 V
B. 210 V
C. 230 V
D. 400 V
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Electro-mechanical voltage regulators are generally used in___________?
Electro-mechanical voltage regulators are generally used in___________?
A. reactors
B. generators
C. transformers
D. all of the aboveThe following system is not generally used?
The following system is not generally used?
A. 1-phase 3 wire
B. 1-phase 4 wire
C. 3-phase 3 wire
D. 3-phase 4 wireThe material generally used for armour of high voltage cables is_____________?
The material generally used for armour of high voltage cables is_____________?
A. aluminium
B. steel
C. brass
D. copperIn AC.S.R. conductors, the insulation between aluminium and steel conductors is_________?
In AC.S.R. conductors, the insulation between aluminium and steel conductors is_________?
A. insulin
B. bitumen
C. varnish
D. no insulation is requiredIn 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 relays is used on long transmission lines?
Which of the following relays is used on long transmission lines?
A. Impedance relay
B. Mho’s relay
C. Reactance relay
D. None of the above