Electrical Engineering MCQs

Page No. 214

The insulating material for cables should____________?


a be acid proof


bbe non-inflammable


c be non-hygroscopic


d have all above properties



The current carrying capacity of cables in D.C. is more than that in A.C. mainly due to__________?


a absence of harmonics


bnon-existence of any stability limit


csmaller dielectric loss


dabsence of ripples



cables are used for 132 kV lines____________?


a High tension


b Super tension


cExtra high tension


d Extra super voltage



The bedding on a cable consists of____________?


a hessian cloth


bjute


c any of the above


dnone of the above


View Answer any of the above

In a cable immediately above metallic sheath ______ is provided


a earthing connection


bbedding


c armouring


d none of the above


View Answer bedding

Empire tape is__________?


avarnished cambric


b vulcanised rubber


c impregnated paper


dnone of the above


View Answer varnished cambric

Which of the following protects a cable against mechanical injury___________?


a Bedding


b Sheath


c Armouring


dNone of the above


View Answer Armouring

The insulating material for a cable should have__________?


alow cost


b high dielectric strength


c high mechanical strength


d all of the above


View Answer all of the above

The thickness of the layer of insulation on the conductor, in cables, depends upon___________?


areactive power


b power factor


c voltage


d current carrying capacity


View Answer voltage

Which of the following insulation is used in cables ?


aVarnished cambric


bRubber


cPaper


d Any of the above


View Answer Any of the above

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