Electrical Engineering MCQs

Page No. 45

Power for lighting in passanger coach, in a long distance electric train, is provided_________________?


adirectly through overhead electric line

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bthrough individual generator of bogie and batteries

✓


cthrough rails

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d through locomotive

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For which of the following locomotives the maintenance requirements are the least ?


aSteam locomotives

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bDiesel locomotives

✓


cElectric locomotives

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d Equal in all of the above

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View Answer Diesel locomotives

In case of a steam engine an average coal consumption per km is nearly________________?


a150 to 175 kg

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b100 to 120 kg

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c60 to 80 kg

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d28 to 30 kg

✓


View Answer 28 to 30 kg

Suri transmission is_________________?


a electrical-pneumatic

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b mechanical-electrical

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chydro-mechanical

✓


dhydro-pneumatic

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View Answer hydro-mechanical

For 25 kV single phase system power supply frequency is_______________?


a60 Hz

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b50 Hz

✓


c25 Hz

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d 16 Hz

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View Answer 50 Hz

Locomotives with monometer bogies have_________________?


auneven distribution of tractive effect

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bsuitability for passanger as well as freight service

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clot of skidding

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dlow co-efficient of adhesion

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________________ frequency is not common in low frequency traction system?


a40 Hz

✓


b25 Hz

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c16 Hz

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d16 Hz

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View Answer 40 Hz

Locomotive having monomotor bogies________________?


ahas better coefficient of adhesion

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bare suited both for passanger as well as freight service

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chas better riding qualities due to the reduction of lateral forces

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dhas all above qualities

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Specific energy consumption is affected by which of the following factors ?


aRetardation and acceleration values

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bGradient

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cDistance between stops

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dAll of the above

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View Answer All of the above

Specific energy consumption is least in ________________ service?


amain line

✓


burban

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c suburban

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d None of the above

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View Answer main line

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