Description : What is meant by extra high voltage transmission?
Answer : HT & LT two types transmission in industrial line
Description : What is the definition of extra low voltage?
Answer : Extra-low voltage (ELV) is an electricity supply voltage in a range which carries a low risk of dangerous electrical shock.
Description : In a tap changing transformer, the tappings are provided on (a) primary winding (b) secondary winding (c) high voltage winding (d) any of the above
Answer : (b) secondary winding
Description : The power transmitted will be maximum when (a) corona losses are minimum (b) reactance is high (c) sending end voltage is more (d) receiving end voltage is more
Answer : (c) sending end voltage is more
Description : The material generally used for armour of high voltage cables is (a) aluminium (b) steel (c) brass (d) copper
Answer : (b) steel