Q.72Ans 1. p-3;q-1;r-22. p-2;q-3;r-13. p-3;q-2;r-14. p-1;q-1,r-3Correct Ans Provided: 2

Q.43 The SCR triggering method in which the junction temperature can be maintained at low value is?Ans 1. dv/dt triggering2. Thermal triggering3. di/dt triggering4. Gate triggeringCorrect Ans Provided: 4

Q.38 An equipment has a per unit impedance of 0.8 on a base of 50 MVA, 66kV. Its per unit impedance on a base of 100 MVA, 33KV will be ?Ans 1. 6.42. 0.643. 3.24. 0.32Correct Ans ...

Q.62 If a current Ic(t) = 16 u(t) is applied through a capacitor C, the voltage Vc(t) across the capacitor is given by _______.Ans 1. (16/C)t2. (16/C)u(t)3. 16 u(t).C4. 16tCorrect Ans Provided: 1

Q.69 Identify the “FALSE” statement considering current transformer and potential transformer:Ans 1. there are a few turns on the secondary winding2. There are a large number of turns on the primary winding3. Both are instrument transformers4. Both are ...

Q.68 Which of the following statements is WRONG with reference to the parallel operation of alternators as compared to single large unit?Ans 1. Easy maintenance2. Poor efficiency3. Better reliability4. Reduced operating costCorrect Ans Provided: 2

Q.65 A series LCR circuit is resonant at 100 kHz and has a quality factor of 50. The lower half power frequency is ________ .Ans 1. 49kHz2. 99kHz3. 98kHz4. 49.5kHzCorrect Ans Provided: 2

Q.67 What is the balanced condition for the given bridge?Ans 1.2.3.4.Correct Ans Provided: 3

Q.53 The output voltage waveform of a rectifier is shown in following figure. The average output voltage is________.Ans 1. 71.27 V2. 140 V3. 50.27 V4. 120 VCorrect Ans Provided: 1

Q.52 Power MOSFET is a ________ device.Ans 1. Power Controlled2. Latching control3. Current Controller4. Voltage controlledCorrect Ans Provided: 4