Q.10 A number is first increased by 15% and then decreased by 20%. The number so obtained is 80 less than the original number. The original number is:Ans A. 1000B. 1200C. 800D. 920Correct Ans Provided: A

Q.72 Calculate the slip of 6-pole 3-phase 50 Hz induction motor, if the motor rotates at a speed of 950 rpm.Ans A. 2%B. 4%C. 3%D. 5%Correct Ans Provided: D

Q.74Ans A.B.C.D.Correct Ans Provided: A

Q.67 Transfer function of a system can be defined as the:Ans A. ratio of output to input in Laplace transformB. ratio of output to input in Hilbert transformC. ratio of output to input in Stockwell transformD. ratio of ...

Q.71 Wien’s bridge is suitable for measurement of frequencies from:Ans A. 200 kHz to 1MHzB. 10 MHz to 100 MHzC. 10 Hz to 99 HzD. 100 Hz to 100 kHzCorrect Ans Provided: D

Q.79 What is the value of forbidden gap for an insulator?Ans A. Greater than 3.5 EvB. Greater than 5 EvC. Greater than 1.6 EvD. Greater than 1.1 EvCorrect Ans Provided: B

Q.70 A 250 V, single-phase, watt hour meter has a constant load of 4 A passing through it for 8 hours at unity power factor. If the meter disc makes 2000 revolutions during this period, then the meter ...

Q.76 In an electronic ohmmeter, an OP-AMP is used as a:Ans A. summerB. buffer amplifierC. multiplierD. integratorCorrect Ans Provided: B

Q.64 Which of the following statements is true for an ‘N-type’ semiconductor?Ans A. Holes are majority carriers and electrons are minority carriers.B. Electrons are majority carriers and holes are minority carriers.C. Only holes are the carriers.D. Only electrons ...

Q.66Ans A.B.C.D.Correct Ans Provided: D