a) Mercury arc rectifiers b) Rotating machines c) Generator d) Transformers Ans: (b)
a) Ring type b) Mesh type c) Radial type d) None of these Ans: (c)
a) 220 V between phases b) 400 V between phases c) 3.3 kV between phases d) None of these Ans: (b)
a) Voltage source b) Current source c) Power source d) All of these Ans: (a)
a) Ring type b) Mesh type c) Radial type d) All of these Ans: (c)
a) Its potential gradient increases b) Insulation required is less c) Corona loss is reduced d) Potential between conductor and ground decreases Ans: (a)
a) Shunt generations b) Power capacitances c) SCR d) Motor-generator set Ans: (c)
a) Receiving end voltage can exceed sending end voltage b) Receiving end voltage can’s exceed sending end voltage c) Capacitive charging current is reduced d) None of these Ans: (a)
a) Of less cost, line inductance & corona loss b) They are easy to fabricate c) Only bundled conductors can withstand high voltages d) All of these Ans: (a)
a) Pressure provides the necessary strength b) Pressure provides the necessary voltage bearing capacity c) Pressure will avoid the formation of voids d) All of these Ans: (c)
a) Low impedance b) Low resistance c) Low reactance d) High resistance Ans: (b)
a) 11 kV b) 33 kV c) 132 kV d) 200 kV Ans: (d)