11. In a cable, the maximum stress under operating conditions is at___________?
A. insulation layer
B. sheath
C. armour
D. conductor surface
✅ The correct answer is option D.
Cables MCQs
12. In case of three core flexible cable the colour of the neutral is_________?
A. blue
B. black
C. brown
D. none of the above
✅ The correct answer is option A.
13. Is a cable is to be designed for use on 1000 kV, which insulation would you prefer ____________?
A. Polyvinyle chloride
B. Vulcanised rubber
C. Impregnated paper
D. Compressed SFe gas
✅ The correct answer is option D.
14. High tension cables are generally used up to_____________?
A. 11kV
B. 33kV
C. 66 kV
D. 132 kV
✅ The correct answer is option A.
15. Capacitance grading of cable implies__________?
A. use of dielectrics of different permeabilities
B. grading according to capacitance of cables per km length
C. cables using single dielectric in different concentrations
D. capacitance required to be introduced at different lengths to counter the effect of inductance
✅ The correct answer is option A.
16. In a cable the voltage stress is maximum at____________?
A. sheath
B. insulator
E. surface of the conductor
D. core of the conductor
✅ The correct answer is option D.
17. Dielectric strength of rubber is around____________?
A. 5 kV/mm
B. 15 kV/mm
C. 30 kV/mm
D. 200 kV/mm
✅ The correct answer is option C.