Q4.In the following network, the voltage magnitudes at all buses are equal to 1 p.u., the voltage phase angles
are very small, and the line resistances are negligible. All the line reactances are equal to j1 Ω.
The voltage phase angles in rad at buses 2 and 3 are
Answer : Option CExplaination / Solution: No Explaination.
Q5.A bulb in a staircase has two switches, one switch being at the ground floor and the other one at the first floor. The bulb can be turned ON and also can be turned OFF by any one of the switches irrespective of the state of the other switch. The logic of switching of the bulb resembles
Answer : Option CExplaination / Solution: No Explaination.
Q8.In the following network, the voltage magnitudes at all buses are equal to 1 p.u., the voltage phase angles are very small, and the line resistances are negligible. All the line reactances are equal to j1 Ω.
If the base impedance and the line-to line base voltage are 100 ohms and 100kV respectively, then the real power in MW delivered by the generator connected at the slack bus is
Answer : Option CExplaination / Solution: No Explaination.
Q9.Thyristor T in the figure below is initially off and is triggered with a single pulse of
width 10µs . It is given that Assuming latching
and holding currents of the thyristor are both zero and the initial charge on C is
zero, T conducts for
Answer : Option CExplaination / Solution: No Explaination.
Q10.The open-loop transfer function of a dc motor is given as When connected in
feedback as shown below, the approximate value of Ka that will reduce the time constant of the
closed loop system by one hundred times as compared to that of the open-loop system is
Answer : Option CExplaination / Solution: No Explaination.
Total Question/Mark :
Scored Mark :
Mark for Correct Answer : 1
Mark for Wrong Answer : -0.5
Mark for Left Answer : 0