In congested areas where excavation is expensive and inconvenient ‘draw in system’ of laying of underground cables is often adopted

Related Mcqs:

Low tension cables are generally used up to___________?

A. 200 V B. 500 V C. 700 V D. 1000 V...

In a cable, the maximum stress under operating conditions is at___________?

A. insulation layer B. sheath C. armour D. conductor surface...

Dielectric strength of rubber is around____________?

A. 5 kV/mm B. 15 kV/mm C. 30 kV/mm D. 200 kV/mm...

The relative permittivity of rubber is____________?

A. between 2 and 3 B. between 5 and 6 C. between 8 and 10 D. between 12 and 14...

The advantage of oil filled cables is_________?

A. more perfect impregnation B. smaller overall size C. no ionisation, oxidation and formation of voids D. all of the above...