1. For the same current carrying capacity corona loss of ACSR will be  ________than copper conductor

(a) more            (b) less               (c) equal

2. Improvement in power factor reduces

(a) power consumed by consumer                (b) power generation                    (c) both a & b

3. A transmission line is designed for 50Hz, 440KV. If we want to transfer  power at 60Hz, 440 KV, then the power transfer capability will

(a) decrease                (b) Increase                 (c)None

4. A sync. Motor is running at synch. Speed, if all of sudden D.C.  excitation is removed, then

(a) it will rotate at slip speed                 (b) it will stop                    (c) it will continue to  rotate at sync. Speed

5. Why we dont like flashover in transmission line (t-line)

(a) it may create earth fault                     (b)it reduces the life of insulator

6. Formulae of Regulation (Vs- Vr)* 100/ Vr, then transmission line is

(a) short transmission line                (b) long                 (c) medium

7. In a ckt a single resistor is connected across a d.c. source, what will be  the effect on current in first resistor if we connect one more resistance in  parallel with earlier one

Answer : no change since it is a parallel combination

8. In a particular ckt I = Im Sin (wt -270) and V = Vm Sin wt, then type of  ckt is _____________

9. In a circuit we are giving voltage of 50 Hz as well as 60. then what will be  the resultant frequency.

(a)less than 50             (b)more than 60              (c)in between 50 & 60                   (d)none

10. B-R-Y sequence is followed in three phase system, if phase voltage in  B-phase is Vm sin 100, then the phase voltage in R-phase would be