1) What is meant by Creepage Distance?
a. Shortest distance between two conducting parts along a stretched string.
b. Shortest distance between two conducting parts along the surface of the insulating material.
c. Distance between ground and the highest earthed point on the equipment.
d. All of these
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Answer
Explanation
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ANSWER: Shortest distance between two conducting parts along the surface of the insulating material.
Explanation:
No explanation is available for this question!
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2) Which among these HVDC projects are commissioned in India?
a. Rihand – Delhi HVDC
b. Vindhyachal Back to Back only
c. Chandrapur only
d. All of these
e. None of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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3) At what location are the shunt capacitors installed for voltages above 33 kV and above?
a. Are located near the motors
b. Are installed in distribution substations
c. Both (A) and (B)
d. None of these
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Answer
Explanation
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ANSWER: Are installed in distribution substations
Explanation:
No explanation is available for this question!
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4) Which among these is a part of HVDC link?
a. Two earth electrodes
b. Converter valves
c. Bipolar DC line
d. All of these
e. None of these
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Answer
Explanation
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ANSWER: All of these
Explanation:
No explanation is available for this question!
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5) At what level is the load shedding carried out?
a. Distribution level
b. Transmission level
c. Both (A) and (B)
d. Depending upon the load
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Answer
Explanation
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ANSWER: Distribution level
Explanation:
No explanation is available for this question!
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6) Which place is the ‘Regional load dispatch centre’ for the western region in the national grid?
a. Mumbai
b. Ahmadabad
c. Bhopal
d. Nagpur
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Answer
Explanation
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ANSWER: Mumbai
Explanation:
No explanation is available for this question!
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7) What type of insulation is preferred for DC smoothing Reactors?
a. Air
b. Oil
c. Paper
d. Varnish
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Answer
Explanation
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ANSWER: Oil
Explanation:
No explanation is available for this question!
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8) At what condition does the corona start, if Es is the electrical stress and Ecr is the critical voltage?
a. Es > Ecr
b. Es = Ecr
c. Es < Ecr
d. Es << Ecr
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Answer
Explanation
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ANSWER: Es > Ecr
Explanation:
No explanation is available for this question!
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9) Which method of voltage control is applied for long line AC transmissions?
a. Switching by shunt capacitors
b. Tap changing transformers
c. Switching by shunt reactors
d. Static Var sources
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Answer
Explanation
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ANSWER: Switching by shunt reactors
Explanation:
No explanation is available for this question!
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10) For what voltage is Twin conductor bundle used in India?
a. 220 kV
b. 500 kV
c. 750 kV
d. 330 kV
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Answer
Explanation
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ANSWER: 500 kV
Explanation:
No explanation is available for this question!
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