Electrical Engineering MCQs

Page No. 49

Due to which of the following co-efficient of adhesion improves ?


a Rust on the rails


b Dust on the rails


cSand on the rails


dAll of the above


View Answer All of the above

For given maximum axle load tractive efforts of AC. locomotive will be_____________?


aless than that of D.C. locomotive


bmore than that of D.C. locomotive


cequal to that of D.C. locomotive


dnone of the above



Which of the following is the advantage of electric braking ?


aIt avoids wear of track


bMotor continues to remain loaded during braking


cIt is instantaneous


dMore heat is generated during braking



The speed of a superfast train is______________?


a60 kmph


b75 kmph


c100 kmph


dmore than 100 kmph


View Answer more than 100 kmph

Which of the following braking systems on the locomotives is costly ?


aRegenerative braking on electric locomotives


bVacuum braking on diesel locomotives


c Vacuum braking on steam locomotives


dAll braking systems are equally costly



The number of passenger coaches that can be attached to a diesel engine locomotive on broad gauge is usually restricted to_____________/


a5


b10


c14


d 17


View Answer 10

In tramways which of the following motors is used ?


aD.C. shunt motor


bD.C. series motor


cA.C. three phase motor


dAC. single phase capacitor start motor


View Answer D.C. series motor

In case of locomotives the tractive power is provided by______________?


asingle cylinder double acting steam engine


b double cylinder, single acting steam engine


cdouble cylinder, double acting steam engine


dsingle stage steam turbine



The steam engine provided on steam locomotives is____________?


asingle acting condensing type


b single acting non-condensing type


cdouble acting condensing type


d double acting non-condensing type



Automatic signalling is used for which of the following trains ?


aMail and express trains


bSuperfast trains


cSuburban and Urban electric trains


dAll trains


View Answer Superfast trains

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