Q.97 To improve power factor and feeder voltage control for a which compensation is required:Ans A. Excitation controlB. Shunt capacitorC. Synchronous condensersD. Series capacitorCorrect Ans Provided: B

Q.93 Calculate the magnetic flux density due to circular coil of 100 ampere turns and area of 70 cm2 on the axis of the coil at a distance of 10 cm from the centre.Ans A.

Q.96 A simple low-pass RC filter having a cutoff frequency of 1 kHZ is connected to a constant ac source of 10 V. Calculate C if R=10 k ΩAns A. 1FB. 15.9FC. 15.9nFD. 1nFCorrect Ans Provided: C

Q.95 The necessary and sufficient condition on the impulse response for stability is:Ans A.B.C.D.Correct Ans Provided: B

Q.100Ans A.B.C.D.Correct Ans Provided: A

Q.94 ABCD parameters are used in analysis of _________.Ans A. Transmission lineB. Open circuitC. Electronic ciruitsD. Short circuitCorrect Ans Provided: A

Q.98 The torque characteristics of a three phase induction motor is similar to that of ________.Ans A. d.c. differentially compounded motorB. d.c. cumulatively compounded motorC. d.c. shunt motorD. d.c. series motorCorrect Ans Provided: C

Q.99 In a purely capacitive circuit the instantaneous power curve is a sinusoidal of ________ the frequency of V and I.Ans A. EqualB.C. HalfD. doubleCorrect Ans Provided: D

Q.79 Determine the capacitance of a parallel plat capacitor composed of thin foil sheets, 20 cm square for plates separated through a glass dielectric 0.4 cm thick with relative permittivity 6.Ans A. 36.562x-12 FB. 46.562x-12 FC. 26.562x-12 FD. ...

Q.83 Which converter has the polarity of the output voltage is opposite of input voltage?Ans A. Cuk converterB. Boost converterC. SEPIC converterD. Buck converterCorrect Ans Provided: A