Cables - Interview Questions | Exam2Win

Take a timed mock test specifically for Cables.

41. 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

Explanation:

42. Natural rubber is obtained from milky sap of tropical trees.

A. Yes

B. No

C. Yes

D. Rubber is most commonly used insulation in cables.

Explanation:

43. In capacitance grading a homogeneous dielectric is used.

A. Yes

B. No

C. No

D. In congested areas where excavation is expensive and inconvenient 'draw in system' of laying of underground cables

Explanation:

44. Polyethylene has very poor dielectric and ageing properties.

A. Yes

B. No

C. No

D. metallic sheath may be made of lead or lead alloy or of aluminium.

Explanation:

45. In a cable, the maximum stress under operating conditions is at

A. insulation layer

B. sheath

C. armour

D. conductor surface

Explanation:

« Prev 1 2 3 4 5 6 7 8 9 10 Next »