The 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. copper
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310 km line is considered as_______________?
310 km line is considered as_______________?
A. a long line
B. a medium line
C. a short line
D. any of the aboveThe 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 aboveElectro-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 aboveFor aluminium, as compared to copper, all the following factors have higher values except:
For aluminium, as compared to copper, all the following factors have higher values except:
A. specific volume
B. electrical conductivity
C. co-efficient of linear expansion
D. resistance per unit length for same cross-sectionA 3-phase 4 wire system is commonly used on________________?
A 3-phase 4 wire system is commonly used on________________?
A. primary transmission
B. secondary transmission
C. primary distribution
D. secondary distributionSeries capacitors on transmission lines are of little use when the load VAR requirement is___________?
Series capacitors on transmission lines are of little use when the load VAR requirement is___________?
A. large
B. small
B. fluctuating
D. any of the above