T&D MODULE -1

Which type of insulator is used in high voltage transmission

• Strain type

• pin type

• suspension type

• Disc type

The voltage of single phase supply to the domestic consumer is

• 110KV

• 210KV

• 230V

• 400V

Pin type insulators are not used for voltages beyond

• 1KV

• 11KV

• 22KV

• 33KV

By which of the systems Electric Power may be Transmitted

• overhead system

• underground sustem

• both overhead and underground

• none of the above

By which of the following methods string efficiency can be improved

• using guard ring

• by grading of insulator

• using long cross arm

• any of the above

A feeder in a transmission system feeds power to

• Distributors

• generating station

• service mains

• all the above

In a sting of suspension type insulator maximum voltage appears across the unit

• most away from the conductor

• near to the conductor

• at the middle of string