MCQ TEST | Chapter 9: Distributed Generation and Power Quality (PQM) | Electrical Engineering Quiz | Important For Final year GTU Exam 2020

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Hello Dear GTU Students, Here we provide MCQ test For your upcoming Final Year Exam 2020. Today we provide test for Power Quality and Management Subject of Electrical Engineering Department. Today we cover MCQ for Chapter 9: Distributed Generation and Power Quality. This MCQ test is very useful for your upcoming final year exam.

Chapter 9: Distributed Generation and Power Quality (PQM) (Electrical Engineering)

Which distribution system is more reliable

A. Tree
B. ring
C. radial
D. all of the above

View Answer
Answer:ring

Explanation:

A bus bar is rated by

A. current and voltage only
B. current
C. current, voltage, and Frequency
D. None

View Answer
Answer:current and voltage only

Explanation:

Which of the following is not installed in substation

A. Shunt reactors
B. excitors
C. voltage transformers
D. series capacitor

View Answer
Answer:excitors

Explanation:

Which distribution system is commonly used?

A. radial
B. parallel
C. ring
D. mesh

View Answer
Answer:radial

Explanation:

Which component connects the substation to the area where power is to be distributed?

A. Distributors
B. Service mains
C. Feeders
D. All of these

View Answer
Answer:Feeders

Explanation:

What is the permissible limit of voltage variations allowed in the distribution systems?

A. ± 2 %
B. ± 5 %
C. ± 10 %
D. ± 6 %

View Answer
Answer:± 6 %

Explanation:

What is the main advantage of ring main system over radial system?

i. Voltage drop in the feeder is less.
ii. Power factor is higher.
iii. Supply is more reliable.

Which among the above statements are correct?

A. i and ii only
B. ii and iii only
C. i and iii only
D. i, ii and iii

View Answer
Answer:i and iii only

Explanation:

Which type of distribution is preferred in residential areas?

A. Single phase, two wire.
B. Three phase, three wire
C. Three phase, four wire
D. Two phase, four wire

View Answer
Answer:Three phase, four wire

Explanation:

Which distribution system is energised by two or more generating stations or substations?

A. Radial systems
B. Interconnected systems
C. Ring main system
D. All of the above

View Answer
Answer:Interconnected systems

Explanation:

Which of the following materials is not used for transmission and distribution of electrical power ?

A. Copper
B. Aluminium
C. Steel
D. Tungsten

View Answer
Answer:Tungsten

Explanation:

The current drawn by the line due to corona losses is _______.

A. non-sinusoidal
B. sinusoidal
C. triangular
D. square

View Answer
Answer:non-sinusoidal

Explanation:

Electro-mechanical voltage regulators are generally used in

A. reactors
B. generators
C. transformers
D. all of the above

View Answer
Answer:generators

Explanation:

High voltage transmission lines use _________.

A. Suspension insulators
B. Pin insulators
C. A and B
D. None of the above

View Answer
Answer: Suspension Insulator

Explanation:

In a tap changing transformer, the tappings are provided on _________.

A. Primary winding
B. Secondary winding
C. High voltage winding
D. none

View Answer
Answer: High voltage winding

Explanation: Tapings are connected to high voltage winding side, because of low current. If we connect tappings to low voltage side, sparks will produce due to high current.

When an alternator connected to the bus-bar is shut down the bus-bar voltage will

A. Remain unchanged
B. Increased
C. Decreased
D. None of the above

View Answer
Answer: Remain unchanged

Explanation: Many alternators are connected to an infinite busbar and they are synchronized at the same frequency, so removing one of them doesn’t change the frequency.

When a conductor carries more current on the surface as compared to core, it is due to

A. Corona
B. Skin Depth
C. Skin Effect
D. None of the above

View Answer
Answer: Skin Effect

Explanation: In skin effect the eddy current causes the electron to be repelled towards the outermost surface of the conductor.

The advantages of high transmission voltage are ______.

A. Area of cross-section is reduced
B. Reduced line losses
C. Increase efficiency
D. All of the above

View Answer
Answer:All of the above

Explanation:

Ferranti effect can be reduced by which of the following method?

A. Shunt Reactor
B. Series Reactor
C. Shunt Capacitor
D. Series Capacitor

View Answer
Answer: Shunt Reactor

Explanation:

The specified quantities of Generation bus is

A. Q and V
B. V and δ
C. P and V
D. P and Q

View Answer
Answer: P and V

Explanation: Generation Bus is also called as the voltage controlled bus. The specified quantities of Generation bus is P and V and here the real power |P| and voltage magnitude |V| are specified.

The specified quantities of load bus are

A. Q and V
B. V and δ
C. P and δ
D. Q and V

View Answer
Answer: Q and V

Explanation: Load bus: This is also called as PQ bus and here the real power |P| and reactive power |Q| are specified.