Q.25 Which type of protection scheme is making a network of grounded GI wire over an electrical sub-station?Ans A. Overhead earth wireB. Surge dividersC. Lightning arresterD. Earthing screenCorrect Ans Provided: D

Q.18Ans A.B.C.D.Correct Ans Provided: B

Q.5 In a salient pole synchronous machine, the rotating magnetic field rotates at a certain speed known as ______.Ans A. turbo speedB. salient speedC. synchronous speedD. reversal speedCorrect Ans Provided: C

Q.27 Which of the following provides a very low impedance path to the ground for high voltage travelling waves in the transmission system?Ans A. Conduction with insulatorB. Overhead earth wireC. Horn gap arresterD. Earthing screenCorrect Ans Provided: C

Q.3Ans A.B.C.D.Correct Ans Provided: A

Q.40 Which type of diode is a specially designed diode characterised by the negative dynamic resistance region?Ans A. Gunn diodeB. Tunnel diodeC. Zener diodeD. PhotodiodeCorrect Ans Provided: B

Q.14 Which of the following statements is INCORRECT for underground cables compared to overhead cables line?Ans A. It requires high insulation.B. High reliability.C. The proximity effect does not affect.D. It requires high maintenance.Correct Ans Provided: C

Q.7 Which of the following is the INCORRECT statement for AC supply system in electric traction?Ans A. Ease in transformation of voltage levelB. Less transmission losses due to higher voltageC. Ease in controlD. Ease in current collection due ...

Q.9 Which of the following is NOT a part of the function that is used in defining the function in C programming?Ans A. Return typeB. Declaration of variableC. Function bodyD. ParametersCorrect Ans Provided: B

Q.31 Which of the following is NOT used for making variable frequency design drives?Ans A. Voltage source inverterB. Pulse-width modulationC. Current source inverterD. Phase controllerCorrect Ans Provided: D