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Electrical Engineering Objective Questions { Power System }



36. A short transmission line has equivalent circuit consisting of
A. series resistance R and series inductance L
B. series resistance R and shunt capacitance C
C. series resistance R and shunt capacitance G
D. series inductance L and shunt capacitance G

37. Proximity effect is due to current flowing in the
A. earth
B. sheath
C. neighbouring conductor
D. all of these

38. The peak value of power angle curve of a transmission line is 50 MVA. If two such identical lines are added in parallel, the resulting peak value is
A. 25 MVA
B. 50 MVA
C. 100 MVA
D. 200 MVA

39. Design tests of power system insulators are
A. pucture test, mechanical test and porosity test
B. dry flashover test and wet flashover tests
C. temperature cycle and electromechanical tests
D. high voltage, proof load tests

40. Performance tests of power system insulators are
A. pucture test, mechanical test and porosity test
B. temperature cycle and electromechanical test
C. dry flashover test and wet flashover test
D. both (a) and (b) above

41. Guy is attached to a transmission line pole to
A. reduce the sag
B. hold the telephone lines
C. strengthen the pole
D. none of these

42. The fault MVA is given by Base MVA
A.LQ LL,LLQLLLG
B. LLLG, LLG,Lc LI
C. LLG, LLLG, LL, LG
D. LL, LG, LLLG, LLG

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