UG CABLE - Quiz

1) Why stranded conductors are used in underground cable?

To provide flexibility To reduce conductivity To provide mechanical strength To reduce the weight

2) Which is the property of insulating materials used in under ground cable?

Hygroscopic High insulation resistance Low mechanical strength High conductivity

3) Which type of insulation is also known as empire type?

Impregnated paper Varnished cambric Polyvinyl Chloride Rubber

4) What is the drawback of rubber insulation used in under ground cable ?

Absorbs moisture Hard Low mechanical strength High hygroscopic

5) What is the advantage of Vulcanised Indian Rubber ?

Safe temperature is high Hygroscopic Greater mechanical strength High conductivity