Cables Mcqs - Set 2

1)   In single core cables armouring is not done to________?

a. avoid excessive sheath losses
b. make it flexible
c. either of the above
d. none of the above
Answer  Explanation 

ANSWER: avoid excessive sheath losses

Explanation:
No explanation is available for this question!


2)   In case of three core flexible cable the colour of the neutral is_________?

a. blue
b. black
c. brown
d. none of the above
Answer  Explanation 

ANSWER: blue

Explanation:
No explanation is available for this question!


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

a. insulation layer
b. sheath
c. armour
d. conductor surface
Answer  Explanation 

ANSWER: conductor surface

Explanation:
No explanation is available for this question!


4)   Dielectric strength of rubber is around____________?

a. 5 kV/mm
b. 15 kV/mm
c. 30 kV/mm
d. 200 kV/mm
Answer  Explanation 

ANSWER: 30 kV/mm

Explanation:
No explanation is available for this question!


5)   High tension cables are generally used up to_____________?

a. 11kV
b. 33kV
c. 66 kV
d. 132 kV
Answer  Explanation 

ANSWER: 11kV

Explanation:
No explanation is available for this question!


6)   Low tension cables are generally used up to___________?

a. 200 V
b. 500 V
c. 700 V
d. 1000 V
Answer  Explanation 

ANSWER: 1000 V

Explanation:
No explanation is available for this question!


7)   Cables, generally used beyond 66 kV are___________?

a. oil filled
b. S.L. type
c. belted
d. armoured
Answer  Explanation 

ANSWER: oil filled

Explanation:
No explanation is available for this question!


8)   In the cables, the location of fault is usually found out by comparing____________?

a. the resistance of the conductor
b. the inductance of conductors
c. the capacitances of insulated conductors
d. all above parameters
Answer  Explanation 

ANSWER: the capacitances of insulated conductors

Explanation:
No explanation is available for this question!


9)   The minimum dielectric stress in a cable is at_____________?

a. armour
b. bedding
c. conductor surface
d. lead sheath
Answer  Explanation 

ANSWER: lead sheath

Explanation:
No explanation is available for this question!


10)   The surge resistance of cable is__________?

a. 5 ohms
b. 20 ohms
c. 50 ohms
d. 100 ohms
Answer  Explanation 

ANSWER: 50 ohms

Explanation:
No explanation is available for this question!