CL wadhwa bits solutions (41 - 46)

Lesson 8 of 21 • 45 upvotes • 15:00mins

Anvesh Sameer

41. In order to have lower cost of electrical energy generation: (a) The load factor and diversity factor should be low (b) The load factor should be low but diversity factor should be high (c) The load factor should be high but diversity factor low (d) The load factor and diversity factors should be high. 42. The insulation of the modern EHV lines is designed based on: (a) The lighting voltage (b) The switching voltage (c) Corona (d) RI. 43. The size of conductor on modern EHV lines is obtained based on: (a) Voltage drop (b) Current density (c) Corona (d) (a) and (b). 44. A Mho relay is a: (a) Voltage restrained directional relay (b) Voltage controlled over current relay (c) Directional restrained over current relay (d) Directional restrained over voltage relay. 45. For stability and economic reasons we operate the transmission line with power angle in the range: (a) 10° to 25° (b) 30° to 45° (c) 60° to 75° (d) 65° to 80°. 46. High voltage d.c. testing for HV machines is resorted because: (a) Certain conclusions regarding the continuous ageing of an insulation can be drawn.(b) The stress distribution is a representation of the service condition (c) Standardization on the magnitude of voltage to be applied is available (d) The stresses do not damage the coil end insulation