Which of the following are the constants of the transmission lines ?
Which of the following are the constants of the transmission lines ?
A. Resistance
B. Inductance
C. Capacitance
D. All of the above
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Which of the following bus-bar schemes has the lowest cost?
Which of the following bus-bar schemes has the lowest cost?
A. Ring bus-bar scheme
B. Single bus-bar scheme
C. Breaker and a half scheme
D. Main and transfer schemeThe material commonly used for insulation in high voltage cables is_______________?
The material commonly used for insulation in high voltage cables is_______________?
A. lead
B. paper
C. rubber
D. none of the aboveIn aluminium conductors, steel core is provided to____________?
In aluminium conductors, steel core is provided to____________?
A. compensate for skin effect
B. neutralise proximity effect
C. reduce line inductance
D. increase the tensile strengthThe 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 VWhich 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 reliableIn 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 required