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

Pin insulator

Strain insulator

Shackle insulator

Suspension insulator

Answer is:

Strain insulator

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10) 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

Answer is:

Avoid sparking

11) What is the name of conductor used on overhead lines?

ACSR

Aluminium

Galvanised iron

Hard drawn copper

Answer is:

ACSR

Explanation:

Aluminium conductor steel-reinforced cable (ACSR) is a type of high-capacity, high-strength stranded conductor typically used in overhead power lines. The outer strands are high-purity aluminium, chosen for its good conductivity, low weight, low cost, resistance to corrosion and decent mechanical stress resistance.