TRANSMISSION AND DISTRIBUTION - Quiz

1) Why the disc pin insulators outer surface is made by glazing and bent the sides inward?

To withstand high voltage Not to attract birds to sit on it To offer high mechanical strength Disables continuous water flow in rainy season

2) Why steel is reinforced in ACSR conductors used for overhead lines?

To minimize the line sag To reduce the line voltage d To increase the tensile strength To increase the current carrying capacity

3) Which type of A.C transmission is universally adopted?

Two phase four wire Two phase three wire Single phase two wire Three phase three wire

4) Which type of line insulator is used for terminating on corner post?

Pin insulator Strain insulator Shackle insulator Suspension insulator

5) What is the reason of keeping binding wire gap too close and very tight in pin insulator?

Avoid sparking Avoid corrosion Avoid oxide formation Avoid atmospheric pressure