Explore topic-wise MCQs in Power Systems.

This section includes 16 Mcqs, each offering curated multiple-choice questions to sharpen your Power Systems knowledge and support exam preparation. Choose a topic below to get started.

1.

On which side of the transformer tap changer is provided?

A. On High Voltage side
B. On low voltage side
C. On high voltage and low voltage side
D. In core
Answer» B. On low voltage side
Discussion
2.

What is the full form of AVR? This term is related to voltage control?

A. Automatic Voltage Rectifier
B. Actuated Voltage Rectifier
C. Automatic Voltage Rectifier
D. Automatic Voltage Regulator
Answer» E.
Discussion
3.

Which of the following equipment is not used for voltage control?

A. Tap changing transformer
B. Induction generators
C. Series compensators
D. Synchronous phase modifiers
Answer» C. Series compensators
Discussion
4.

What is the limit within which the consumer’s end terminal voltage should be maintained?

A. ± 9 %
B. ± 10 %
C. ± 5 %
D. ± 6 %
Answer» E.
Discussion
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 reciving end voltage
D. lags behind sending end voltage
Answer» D. lags behind sending end voltage
Discussion
6.

WHICH_OF_THE_FOLLOWING_EQUIPMENT_IS_NOT_USED_FOR_VOLTAGE_CONTROL??$

A. Tap changing transformer
B. Induction generators
C. Series compensators
D. Synchronous phase modifiers
Answer» C. Series compensators
Discussion
7.

On which side of the transformer tap changer is provided?$

A. On High Voltage side
B. On low voltage side
C. On high voltage and low voltage side
D. In core
Answer» B. On low voltage side
Discussion
8.

What_is_the_full_form_of_AVR?_This_term_is_related_to_voltage_control?$

A. Automatic Voltage Rectifier
B. Actuated Voltage Rectifier
C. Automatic Voltage Rectifier
D. Automatic Voltage Regulator
Answer» E.
Discussion
9.

What is the main reason for maintaining consumer end voltage within prescribed limit?

A. Because it is declared by the supplier
B. For satisfactory operation of electrical equipments
C. For easy calculation of units supplied
D. To reduce the line losses
Answer» C. For easy calculation of units supplied
Discussion
10.

What is the limit within which the consumer’s end terminal voltage should be maintained?$

A. ± 9 %
B. ± 10 %
C. ± 5 %
D. ± 6 %
Answer» E.
Discussion
11.

Under no load condition inductance of line predominant the line to earth capacitances.

A. True
B. False
Answer» C.
Discussion
12.

Which of the following equipment or element can reduce Ferranti effect?

A. Relay
B. Circuit Breaker
C. Resistors
D. Current limiting reactors
Answer» E.
Discussion
13.

A transmission line of 200 Km is supplying at 50Hz frequency. What is the percentage rise in voltage at reciving end?

A. 20%
B. 1.2%
C. 2.19%
D. 20.8%
Answer» D. 20.8%
Discussion
14.

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 reciving end voltage
D. lags behind sending end voltage
Answer» D. lags behind sending end voltage
Discussion
15.

What happens during the Ferranti effect?

A. Reciving end current becomes more than sending end current
B. Reciving end voltage becomes more than sending end voltage
C. Reciving end power becomes more than sending end power
D. Reciving end frequency becomes more than sending end frequency
Answer» C. Reciving end power becomes more than sending end power
Discussion
16.

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
Answer» D. Transmission line having high capacitance
Discussion