Power System Planning and Design (2180903) MCQs

MCQs of Transmission Line Design

Showing 11 to 20 out of 85 Questions
1 2 3 4 5 6
11.
The generating voltage and frequency in India is
(a) 11 kV, 50 Hz
(b) 11 kV, 60 Hz
(c) 33 kV, 50 Hz
(d) 33 kV, 60 Hz
Answer:

Option (a)

12.
Which system is adopted for generation and transmission of electrical power?
(a) 2 phase 3 wire
(b) 3 phase 3 wire
(c) 3 phase 4 wire
(d) None of above
Answer:

Option (b)

13.
Rated voltage of a 3 phase power system is
(a) RMS line voltage
(b) RMS phase voltage
(c) Peak line voltage
(d) Peak phase voltage
Answer:

Option (a)

14.
Highest possible transmission voltage in India is
(a) 132 kV
(b) 440 kV
(c) 675 kV
(d) 765 kV
Answer:

Option (d)

15.
High voltage for the long distance power transmission
(a) Reduces transmission losses
(b) Reduces time of transmission
(c) Increases system reliability
(d) None of above
Answer:

Option (a)

16.
Increasing the transmission voltage double of its original value, the same power can be dispatched keeping the line losses
(a) One - fourth of the original value
(b) Half of its original value
(c) Equal to its original value
(d) Double the original value
Answer:

Option (a)

17.
Which is not the component of over head transmission lines?
(a) Conductors
(b) Cross arms
(c) Danger plates
(d) Transformers
Answer:

Option (d)

18.
Which conductor material property is not suited for power transmission?
(a) High electrical conductivity
(b) High specific gravity
(c) Lower cost
(d) High tensile strength
Answer:

Option (b)

19.
Empirical formula to calculate the number of strands is
(a) 3n (n+1) + 1
(b) 3n (n+1) + 2
(c) 3n (n+2n) + 2
(d) 3n (3+ 3n) + 1
Answer:

Option (a)

20.
Why copper is best suitable as over head conductor material?
(a) Smaller cross sectional area
(b) Less area offered to wind load
(c) High cost
(d) Both (a) and (b)
Answer:

Option (d)

Showing 11 to 20 out of 85 Questions
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