a) The lowest positive incremental cost of production. b) The lowest negative incremental cost of production. c) The highest positive incremental cost of production. d) None of the above Ans: (a)
a) Greater with solid than with air dielectric. b) Greater with air than with solid dielectric. c) Same for both solid and air dielectric. Ans: (a)
a) Unity. b) Between 1.2 and 1.5. c) Between 1.6 and 1.8. d) Between 2 and 2.2. Ans: (b)
a) Lighting voltage b) Switching voltage c) Corona d) RI Ans: (b)
a) Positive always. b) Negative always. c) Can be positive or negative. d) None of the above. Ans: (c)
a) Increases the stress and length b) Decreases the stress but increases the length. c) Decreases the stress and length. d) None of the above. Ans: (b)
a) Increases the capacitance. b) Increases the inductance. c) Decreases the capacitance. d) Decreases the increases. Ans: (a)
a) 0.2 p.u. b) 0.06 p.u. c) 0.05 p.u. d) 0.072 p.u. Ans: (c)
a) 40 MVA b) 30 MVA c) 27 MVA d) None of the above Ans: (c)
a) 25 ohms b) 50 ohms c) 100 ohms d) None of the above Ans: (b)