MCQ-Set-2-Power System

Electrical engineering 

MCQ related to Power System Planning and Design

Set : 2

11. Length of long transmission line is.......?

A) belove 1000km
B) belove 240km
C) above 1000km
D) above 240km

... Answer is D)
above 240km .

12. Power for transmission line is given by ......

A) P=√3VIcos(thita)
B) P=3VIcos(thita)
C) P=VIcos(thita)
D) P=√3VI

... Answer is A)
P=√3VIcos(thita) .

13. if voltage increase, the cost of conductor..........

A) increase
B) decrease
C) constant
D) 2 times

... Answer is B)
decrease .

14. what is full form of HDBC?

A) Hard drawn bare copper
B) Highly desirable bare copper
C) Hard down break cable
D) Hard discussion break cable

... Answer is A)
Hard drawn bare copper .

15. Which cable is highly affected by sag ?

A) copper
B) ACSC
C) galvanized
D) aluminum

... Answer is D)
Aluminum.

16. Specific gravity of copper is......

A) 2.70
B) 8.89
C) 9.89
D) 12.99

... Answer is B)
8.89 .

17. Full form of ACSR is......

A) Aluminium Conductor with Steel Reinforcemen
B) Aluminium Conductor without Steel Reinforcemen
C) American Conductor with swept recipt
D) Aluminum Conductivity with steel Reinforcemen

... Answer is A)
Aluminium Conductor with Steel Reinforcemen .

18. Advantages of Aluminium conductor?

A) High mechanical strength
B) High conductivity
C) low cost
D) high gravity

... Answer is C)
Low cost .

19. ACSR Twin bundle conductor use for..... ?

A) 220kV
B) 400kV
C) 115kV
D) 600kV

... Answer is B)
400kV.

20. The most suitable spacing and arrangement for over head transmission line conductor is given by ?

A) Empirical Formula
B) Thomas Formula
C) Kirchhoff formula
D) Maxwell formula

... Answer is A)
Empirical Formula .
 

 

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