DAPZOI
Home Ask MCQ Quiz Topics Login


Power Systems MCQ Questions & Answers

Power Systems MCQs : This section focuses on the "Power Systems". These Multiple Choice Questions (MCQs) should be practiced to improve the Power Systems skills required for various interviews (campus interview, walk-in interview, company interview), placement, entrance exam and other competitive examinations.




Question 1

Which of the above is not a DC link?

A. Monopolar link
B. Bipolar link
C. Homopolar link
D. None of the mentioned

View Answer

Question 2

What happens during the Ferranti effect?

A. Receiving end current becomes more than sending end current
B. Receiving end voltage becomes more than sending end voltage
C. Receiving end power becomes more than sending end power
D. Receiving end frequency becomes more than sending end frequency

View Answer

Question 3

The transient instabilities can occur in a system by ___________

A. Sudden load changes
B. Switching operation
C. Faults
D. Sudden load changes, switching operation and faults

View Answer

Question 4

Ripple of the DC-output at power converter is ____________

A. maximum value of instantaneous difference between average and instantaneous value
B. minimum value of instantaneous difference between average and instantaneous value
C. average value of output
D. maximum value of instantaneous value

View Answer

Question 5

During Ferranti effect the voltage drop across line resistance ___________

A. In phase with reciving end voltage
B. lags behind reciving end voltage
C. lead the receiving end voltage
D. lags behind sending end voltage

View Answer

Question 6

Voltage regulation in the power system is __________

A. rise in voltage at receiving end
B. dip in voltage at receiving end
C. rise in voltage at sending end
D. dip in voltage at sending end

View Answer

Question 7

Voltage regulation becomes negative for a ______load.

A. leading
B. lagging
C. zero power factor
D. unity power factor

View Answer

Question 8

Smooth reactor is connected between _____________

A. DC output of converter and load
B. load and ground
C. source and input of converter
D. any of the mentioned

View Answer

Question 9

Ferranti effect is not a problem for ________

A. Long Transmission lines
B. Medium Transmission lines
C. Short Transmission lines
D. Transmission line having high capacitance

View Answer

Question 10

Swing equation is very famous for describing the relation between the ___________

A. rotor motion and stator field
B. stator and rotor field
C. load angle and rotor field
D. moment of inertia and rotor motion

View Answer