Which 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
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Large industrial consumers are supplied electrical energy at__________________?
Large industrial consumers are supplied electrical energy at__________________?A. 400 V
B. 11 kV
C. 66 kV
D. 400 kVGalvanised steel wire is generally used as______________?
Galvanised steel wire is generally used as______________?
A. stay wire
B. earth wire
C. structural components
D. all of the aboveWhich 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 loads on distributors systems are generally__________________?
The loads on distributors systems are generally__________________?
A. balanced
B. unbalanced
C. either of the above
D. none of the aboveWhich of the following characteristics should the line supports for transmission lines possess?
Which of the following characteristics should the line supports for transmission lines possess?
A. Low cost
B. High mechanical strength
C. Longer life
D. All of the aboveThe steel used in steel cored conductors is usually__________?
The steel used in steel cored conductors is usually__________?
A. alloy steel
B. stainless steel
C. mild steel
D. high speed steel
E. all of the above