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MCQ on Cables – 2

May 16, 2017 by admin

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  1. If the length of a cable is increased, its capacitance
(a) decreases.
(b) increases.
(c) remain same.
(d) none of the above.

Answer ⇓

           B 

 2. Low voltage cables are generally use up to
(a) 1.1kV.
(b) 3.3kV.
(c) 6.6kV.
(d) 11kV.

Answer ⇓

           A 

 3. Insulated conductor is called as
(a) wire
(b) conductor.
(c) pipe.
(d) cable.

Answer ⇓

           D 

 4. EHT cable are the types of
(a) Oil filled.
(b) Gas filled.
(c) Both of above.
(d) Air filled.

Answer ⇓

           C 

 5. The cables mainly used in hill / mines are
(a) MIND.
(b) XLPE.
(c) FRLS.
(d) LSOH.

Answer ⇓

           A 

 6. The operating voltage of high voltage cables is up to
(a) 11kV.
(b) 22kV.
(c) 33kV.
(d) 66kV.

Answer ⇓

           A 

 7. The operating voltage of supertension cables is up to
(a) 11 kV.
(b) 22 kV.
(c) 33 kV.
(d) 66 kV.

Answer ⇓

           C 

 8. The operating voltage of extra high tension cables is upto
(a) 11 kV.
(b) 33 kV.
(c) 66 kV.
(d) 132 kV.

Answer ⇓

           C 

 9. The charging current drawn by the cable
(a) leads the voltage by 120°.
(b) lags the voltage by 90°.
(c) lags the voltage by 120°.
(d) leads the voltage by 90°.

Answer ⇓

           D 

 10. As the length of cable decreases, insulation resistance will
(a) increases.
(b) decreases.
(c) remains unchanged.
(d) none of above.

Answer ⇓

           A 

 11. Insulation resistance of a cable is 1. directly proportional to its (a) length.
(b) inversely proportional to its length.
(c) remain constant.
(d) none of above.

Answer ⇓

           B 

 12. The bridge used for measurement of insulation cables
(a) Wien’s.
(b) Maxwell’s.
(c) Schering’s.
(d) Kelvin’s.

Answer ⇓

           C 

 13. Localization of cable faults done by
(a) short circuit tests.
(b) murray loop tests.
(c) varley loop tests.
(d) murray and varley loop test.

Answer ⇓

           D 

 14. The disadvantage with paper as insulating material is
(a) it is hygroscopic.
(b) it has high capacitance.
(c) it is an organic material.
(d) none of the above.

Answer ⇓

           A 

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