Distribution System Objective Type Questions and answers
26. Which of the following distribution system is more reliable?
A. Radial system
B. Tree system
C. Ring main system
D. All are equally reliable
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C. Ring main system
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27. Which of the following distribution systems is the most economical?
A. A.C. 1-phase system
B. A.C. 3-phase 3 wire system
C. A.C. 3-phase 4 wire system
D. Direct current system
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28. In a distribution system major cost is that of
A. Earthing system
B. Distribution transformer
C. Conductors
D. Metres
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29. In the design of a distributor which of the following is the major consideration?
A. Voltage drop
B. Current carrying capacity
C. Frequency
D. KVA system
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30. The area of cross-section of the neutral in a 3-wire D.C. system is generally .........the area of cross section of main conductor
A. Same as
B. One fourth
C.One half
D. Double
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