CABLES OBJECTIVE QUESTIONS WITH EXPLANATIONS

CABLES OBJECTIVE QUESTIONS WITH EXPLANATIONS

Q no 1 . Which of the following protects a cable against mechanical injury ?

              a ) Bedding

              b ) sheath 

              c ) Armouring

explanations

                   answer  c ) Armouring

Q no 2 Empire tape is

            a ) varnished cambric

            b ) vulcanised rubber

            c ) impregnated paper

            d ) none of the above

explanations

                   answer   a ) varnished cambric

Q no 3 . The thickness of the layer of insulation on the conductor , in cables ,depends upon

               a ) reactive power

               b ) power factor

               c ) voltage

               d ) current carrying capacity

explanations

                   answer c ) voltage