a) Decreases stress & increases length b) Decreases stress & length c) Increases stress & length d) Increases stress & decreases length Ans: (a)
a) Scarcity of copper b) Heavy weight of copper c) High cost copper d) Less conductivity of copper Ans: (a)
a) Vibration of conductors b) Dead weight of the equipment c) Conductor tension at angles in lines d) Interference in transmission lines Ans: (b)
a) Tap changing transformers b) Injection of reactive power c) Booster transformer d) All of these Ans: (d)
a) Longer life b) Less maintenance cost c) Both (a) and (b) d) None of these Ans: (c)
a) Mid point of line b) Receiving end c) Sending end d) Anywhere on the line Ans: (a)
a) Sending end power circle diagram b) Receiving end power circle diagram c) Universal power circle diagram d) None of these Ans: (c)
a) Poles b) Ground c) Insulator d) Conductors Ans: (c)
a) Increases b) Decreases c) Does not affect d) Uncertain Ans: (b)
a) Centre of the conductor b) Surface of the conductor c) 1/3 of the conductor d) None of these Ans: (b)