MCQOPTIONS
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MCQOPTIONS
This section includes 170 Mcqs, each offering curated multiple-choice questions to sharpen your Electrical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 101. |
*/*________ was the first city in India to adopt electric traction.? |
| A. | Delhi |
| B. | Madras (Chennai) |
| C. | Calcutta (kolkata) |
| D. | Bombay (Mumbai) |
| Answer» E. | |
| 102. |
*/*_Which of the following state capitals (in India) is not on broad gauge track?? |
| A. | Lucknow |
| B. | Bhopal |
| C. | Jaipur |
| D. | Chandigarh |
| Answer» D. Chandigarh | |
| 103. |
*/*_For diesel locomotives the range of horsepower is? |
| A. | 50 to 200 |
| B. | 500 to 1000 |
| C. | 1500 to 2500 |
| D. | 3000 to 5000 |
| Answer» D. 3000 to 5000 | |
| 104. |
*/*_The speed of a superfast train is? |
| A. | 60 kmph |
| B. | 75 kmph |
| C. | 100 kmph |
| D. | More than 100 kmph |
| Answer» E. | |
| 105. |
*/*_Specific energy consumption is least in _______ service.? |
| A. | Main line |
| B. | Main line |
| C. | Suburban |
| D. | None of these |
| Answer» B. Main line | |
| 106. |
*/*_Vacuum is created by which of the following?? |
| A. | Vacuum pump |
| B. | Ejector |
| C. | Any of the above |
| D. | None of the above |
| Answer» D. None of the above | |
| 107. |
*/*_The pulsating torque exerted by steam locomotives causes which of the following?? |
| A. | Jolting and skidding |
| B. | Hammer blow |
| C. | Pitching |
| D. | All of the above |
| Answer» B. Hammer blow | |
| 108. |
*/*_Series motor is not suited for traction duty due to which of the following account?? |
| A. | Less current drain on the heavy load torque |
| B. | Current surges after temporary switching off supply |
| C. | Self relieving property |
| D. | Commutating property at heavy load |
| Answer» C. Self relieving property | |
| 109. |
*/*_Which of the following happens in Kando system?? |
| A. | Three phase A.C. is converted into D.C. |
| B. | Single phase A.C. is converted into D.C. |
| C. | Single phase supply is converted into three phase system |
| D. | None of the above |
| Answer» D. None of the above | |
| 110. |
*/*_In case of steam engines the steam pressure is? |
| A. | 1 to 4 kgf/cm² |
| B. | 5 to 8 kgf/cm² |
| C. | 10 to 15 kgf/cm² |
| D. | 25 to 35 kgf/cm² |
| Answer» D. 25 to 35 kgf/cm¬¨‚⧠| |
| 111. |
_ Which of the following state capitals (in India) is not on broad gauge track?$? |
| A. | Lucknow |
| B. | Bhopal |
| C. | Jaipur |
| D. | Chandigarh |
| Answer» D. Chandigarh | |
| 112. |
_ _______ was the first city in India to adopt electric traction.$? |
| A. | Delhi |
| B. | Madras (Chennai) |
| C. | Calcutta (kolkata) |
| D. | Bombay (Mumbai) |
| Answer» E. | |
| 113. |
_ The horsepower of steam locomotives is$? |
| A. | Up to 1500 |
| B. | 1500 to 2000 |
| C. | 2000 to 3000 |
| D. | 3000 to 4000 |
| Answer» B. 1500 to 2000 | |
| 114. |
_ Speed-time curve of main line service differs from those of urban and suburban services on following account$? |
| A. | It has longer free running period |
| B. | It has longer coasting period |
| C. | Accelerating and braking periods are comparatively smaller |
| D. | All of the above |
| Answer» E. | |
| 115. |
_ For diesel locomotives the range of horsepower is$? |
| A. | 50 to 200 |
| B. | 500 to 1000 |
| C. | 1500 to 2500 |
| D. | 3000 to 5000 |
| Answer» D. 3000 to 5000 | |
| 116. |
_ The pulsating torque exerted by steam locomotives causes which of the following?$? |
| A. | Jolting and skidding |
| B. | Hammer blow |
| C. | Pitching |
| D. | All of the above |
| Answer» B. Hammer blow | |
| 117. |
_ Vacuum is created by which of the following?$? |
| A. | Vacuum pump |
| B. | Ejector |
| C. | Any of the above |
| D. | None of the above |
| Answer» D. None of the above | |
| 118. |
_ The speed of a superfast train is$? |
| A. | 60 kmph |
| B. | 75 kmph |
| C. | 100 kmph |
| D. | More than 100 kmph |
| Answer» E. | |
| 119. |
_ Specific energy consumption is least in _______ service.$? |
| A. | Main line |
| B. | Main line |
| C. | Suburban |
| D. | None of these |
| Answer» B. Main line | |
| 120. |
_ When a bogie negotiates a curve, reduction in adhesion occurs resulting in sliding. Thus sliding is acute when$? |
| A. | Wheel base of axles is more |
| B. | Degree of curvature is more |
| C. | Both (A) and (B) |
| D. | None of the above |
| Answer» D. None of the above | |
| 121. |
_ In case of steam engines the steam pressure is$? |
| A. | 1 to 4 kgf/cm² |
| B. | 5 to 8 kgf/cm² |
| C. | 10 to 15 kgf/cm² |
| D. | 25 to 35 kgf/cm² |
| Answer» D. 25 to 35 kgf/cm¬¨‚⧠| |
| 122. |
_ Which of the following happens in Kando system?$? |
| A. | Three phase A.C. is converted into D.C. |
| B. | Single phase A.C. is converted into D.C. |
| C. | Single phase supply is converted into three phase system |
| D. | None of the above |
| Answer» D. None of the above | |
| 123. |
_ Series motor is not suited for traction duty due to which of the following account?$? |
| A. | Less current drain on the heavy load torque |
| B. | Current surges after temporary switching off supply |
| C. | Self relieving property |
| D. | Commutating property at heavy load |
| Answer» C. Self relieving property | |
| 124. |
_ ________ have maximum unbalanced forces$? |
| A. | Diesel saunters |
| B. | Steam locomotives |
| C. | Electric locomotives |
| D. | Diesel locomotives |
| Answer» C. Electric locomotives | |
| 125. |
_ Electric locomotives in India are manufactured at$? |
| A. | Jamalpur |
| B. | Bangalore |
| C. | Chittaranjan |
| D. | Gorakhpur |
| Answer» D. Gorakhpur | |
| 126. |
_Automatic signaling is used for which of the following trains?$? |
| A. | Mail and express trains |
| B. | Superfast trains |
| C. | Suburban and Urban electric trains |
| D. | All trains |
| Answer» C. Suburban and Urban electric trains | |
| 127. |
Methods can bring the locomotive to dead stop.$? |
| A. | Plugging braking |
| B. | Rheostat braking |
| C. | Regenerative braking |
| D. | None of the above |
| Answer» B. Rheostat braking | |
| 128. |
Which of the following is the disadvantage of electric traction over other systems of traction?$? |
| A. | Corrosion problems in the underground pipe work |
| B. | Short time power failure interrupts traffic for hours |
| C. | High capital outlay in fixed installations beside route limitation |
| D. | Interference with communication lines |
| Answer» D. Interference with communication lines | |
| 129. |
The steam engine provided on steam locomotives is$? |
| A. | Single acting condensing type |
| B. | Single acting non-condensing type |
| C. | Double acting condensing type |
| D. | Double acting non-condensing type |
| Answer» C. Double acting condensing type | |
| 130. |
Which of the following is the advantage of electric braking?$? |
| A. | It avoids wear of track |
| B. | Motor continues to remain loaded during braking |
| C. | It is instantaneous |
| D. | More heat is generated during braking |
| Answer» B. Motor continues to remain loaded during braking | |
| 131. |
Locomotive having mono-motor bogies$? |
| A. | Has better coefficient of adhesion |
| B. | Are suited both for passenger as well as freight service |
| C. | Has better riding qualities due to the reduction of lateral forces |
| D. | Has all above qualities |
| Answer» E. | |
| 132. |
The specific energy consumption of a train depends on which of the following?$? |
| A. | Acceleration and retardation |
| B. | Gradient |
| C. | Distance covered |
| D. | All of the above |
| Answer» E. | |
| 133. |
The voltage used for suburban trains in D.C. system is usually$? |
| A. | 12 V |
| B. | 24 V |
| C. | 220 V |
| D. | 600 to 750 V |
| Answer» E. | |
| 134. |
For given maximum axle load tractive efforts of AC. locomotive will be$? |
| A. | Less than that of D.C. locomotive |
| B. | More than that of D.C. locomotive |
| C. | Equal to that of D.C. locomotive |
| D. | None of the above |
| Answer» C. Equal to that of D.C. locomotive | |
| 135. |
The value of coefficient of adhesion will be high when rails are$? |
| A. | Greased |
| B. | Wet |
| C. | Sprayed with oil |
| D. | Cleaned with sand |
| Answer» E. | |
| 136. |
The friction at the track is proportional to$? |
| A. | 1/speed |
| B. | 1/(speed)² |
| C. | Speed |
| D. | None of the above |
| Answer» D. None of the above | |
| 137. |
_________ frequency is not common in low frequency traction system$? |
| A. | 40 Hz |
| B. | 25 Hz |
| C. | 16 Hz |
| D. | None of these |
| Answer» B. 25 Hz | |
| 138. |
Main traction systems used in India are, those using$? |
| A. | Electric locomotives |
| B. | Diesel engine locomotives |
| C. | Steam engine locomotives |
| D. | All of the above |
| Answer» E. | |
| 139. |
The return circuit for tram cars is through$? |
| A. | Neutral wire |
| B. | Rails |
| C. | Cables |
| D. | Common earthing |
| Answer» C. Cables | |
| 140. |
In India diesel locomotives are manufactured at$? |
| A. | Ajmer |
| B. | Varanasi |
| C. | Bangalore |
| D. | Jamalpur |
| Answer» C. Bangalore | |
| 141. |
Which of the following is an advantage of electric traction over other methods of traction? |
| A. | Faster acceleration |
| B. | No pollution problems |
| C. | Better braking action |
| D. | All of the above |
| Answer» B. No pollution problems | |
| 142. |
Suri transmission is |
| A. | Electrical pneumatic |
| B. | Mechanical electrical |
| C. | Hydro mechanical |
| D. | Hydro pneumatic |
| Answer» D. Hydro pneumatic | |
| 143. |
Watt-hours per tonne km is usually the specific energy consumption for suburban services. |
| A. | 15 - 20 |
| B. | 50 - 75 |
| C. | 120 - 150 |
| D. | 160 - 200 |
| Answer» C. 120 - 150 | |
| 144. |
For three-phase induction motors which of the following is the least efficient method of speed control? |
| A. | Cascade control |
| B. | Pole changing |
| C. | Rheostat control |
| D. | Combination of cascade and pole changing |
| Answer» D. Combination of cascade and pole changing | |
| 145. |
An ideal traction system should have |
| A. | Easy speed control |
| B. | High starting tractive effort |
| C. | Equipment capable of withstanding large temporary loads |
| D. | All of the above |
| Answer» E. | |
| 146. |
Long distance railways use which of the following? |
| A. | 200 V D.C. |
| B. | 25 kV single phase A.C. |
| C. | 25 kV two phase A.C. |
| D. | 25 kV three phase A.C. |
| Answer» C. 25 kV two phase A.C. | |
| 147. |
Power for lighting in passenger coach, in a long distance electric train, is provided |
| A. | Directly through overhead electric line |
| B. | Through individual generator of bogie and batteries |
| C. | Through rails |
| D. | Through locomotive |
| Answer» C. Through rails | |
| 148. |
For 25 kV single phase system power supply frequency is |
| A. | 60 Hz |
| B. | 50 Hz |
| C. | 25 Hz |
| D. | 16 Hz |
| Answer» C. 25 Hz | |
| 149. |
Quadrilateral speed-time curve pertains to which of the following services? |
| A. | Main line service |
| B. | Urban service |
| C. | Suburban service |
| D. | Urban and suburban service |
| Answer» E. | |
| 150. |
The speed of a locomotive is controlled by |
| A. | Flywheel |
| B. | Gear box |
| C. | Applying brakes |
| D. | Regulating steam flow to engine |
| Answer» B. Gear box | |