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
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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
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3) In a cable, the maximum stress under operating conditions is at___________? a. insulation layer b. sheath c. armour d. conductor surface
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4) Dielectric strength of rubber is around____________? a. 5 kV/mm b. 15 kV/mm c. 30 kV/mm d. 200 kV/mm
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5) High tension cables are generally used up to_____________? a. 11kV b. 33kV c. 66 kV d. 132 kV
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6) Low tension cables are generally used up to___________? a. 200 V b. 500 V c. 700 V d. 1000 V
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7) Cables, generally used beyond 66 kV are___________? a. oil filled b. S.L. type c. belted d. armoured
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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
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9) The minimum dielectric stress in a cable is at_____________? a. armour b. bedding c. conductor surface d. lead sheath
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10) The surge resistance of cable is__________? a. 5 ohms b. 20 ohms c. 50 ohms d. 100 ohms
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