MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
As compared to anthracite coal, the angle of repose for coke will be |
| A. | more |
| B. | less |
| C. | same |
| Answer» C. same | |
| 2. |
Skip hoists are generally used where |
| A. | the lift is too high |
| B. | the lumps to be lifted are large |
| C. | the material is pulverized |
| D. | all of the above |
| Answer» E. | |
| 3. |
Which braking system is not used in case of earth moving machinery? |
| A. | Hydraulic braking system |
| B. | Vacuum braking system |
| C. | Pneumatic braking system |
| D. | Mechanical braking system |
| Answer» C. Pneumatic braking system | |
| 4. |
A 25 mm wire rope sling can safely take a load of |
| A. | 40 to 50 tonnes |
| B. | 4 to 5 tonnes |
| C. | 25 to 30 tonnes |
| D. | 90 to 100 tonnes |
| Answer» D. 90 to 100 tonnes | |
| 5. |
Which of the following material is corrosive? |
| A. | Sulphur |
| B. | Starch |
| C. | Soap flakes |
| D. | Zinc oxide |
| Answer» B. Starch | |
| 6. |
The pressure of air in case of pneumatic tools is generally in the range |
| A. | 4 to 6 kg/cm2 |
| B. | 34 to 36 kg/cm2 |
| C. | 24 to 26 kg/cm2 |
| D. | 14 to 16 kg/cm2 |
| Answer» C. 24 to 26 kg/cm2 | |
| 7. |
In case of pneumatic conveyors the minimum diameter of bend should be at least |
| A. | six |
| B. | three |
| C. | two |
| D. | ten |
| Answer» C. two | |
| 8. |
In case of belt conveyors, while conveying anthracite, the maximum permissible slope is |
| A. | 20? |
| B. | 28? |
| C. | 30? |
| D. | 16? |
| Answer» F. | |
| 9. |
Which of the following item can be conveyed using pneumatic conveyors? |
| A. | soda ash |
| B. | salt cake |
| C. | carbon black |
| D. | all of the above |
| Answer» E. | |
| 10. |
In case of belt conveyors, the permissible slope will be least while conveying |
| A. | Gravel pebbles |
| B. | Sand |
| C. | Wood chips |
| D. | Lignite |
| Answer» B. Sand | |
| 11. |
In case of belt conveyors, the bearings used for return idlers are |
| A. | anti-friction bearings |
| B. | cast iron bearings |
| C. | bush bearings |
| D. | split bush bearings |
| Answer» B. cast iron bearings | |
| 12. |
Rubber belts in case of belt conveyors are reinforced with |
| A. | rayon |
| B. | nylon |
| C. | polyster |
| D. | Any of the above |
| Answer» E. | |
| 13. |
In case of belt conveyors, the permissible slope will be maximum while conveying |
| A. | Earth, dry |
| B. | Anthracite coal |
| C. | Dry sand |
| D. | Wood chips |
| Answer» F. | |
| 14. |
In case of belt conveyors, while conveying earth, as excavated, the maximum permissible slope is around |
| A. | 10? |
| B. | 30? |
| C. | 40? |
| D. | 20? |
| Answer» E. | |
| 15. |
In case of belt conveyors, a tripper is used to |
| A. | facilitate loading |
| B. | facilitate unloading |
| C. | prevent shock loading |
| D. | prevent damage to belt |
| Answer» C. prevent shock loading | |
| 16. |
The number of cylinders in case of steam locomotives is |
| A. | Eight |
| B. | Four |
| C. | Two |
| D. | One |
| Answer» E. | |
| 17. |
Which of the following material has the highest weight/volume ratio? |
| A. | Barley |
| B. | Coke |
| C. | Limestone |
| D. | Charcoal |
| Answer» D. Charcoal | |
| 18. |
In case of flight conveyors the angle of flight is seldom allowed to exceed |
| A. | 75? |
| B. | 70? |
| C. | 60? |
| D. | 40? |
| Answer» F. | |
| 19. |
The expected life of a light commercial vehicle is nearly |
| A. | 250,000 km |
| B. | 150,000 km |
| C. | 50,000 km |
| D. | 350,000 km |
| Answer» D. 350,000 km | |
| 20. |
In case of a single girder overhead travelling crane, the section used is |
| A. | I-beam |
| B. | Z-section |
| C. | angle iron |
| D. | a channel |
| Answer» B. Z-section | |
| 21. |
In screw conveyors, ribbon screws are used for |
| A. | wet and sticky materials |
| B. | granular materials |
| C. | none of the above |
| Answer» B. granular materials | |
| 22. |
The angle of repose depends on |
| A. | shape of the material |
| B. | smoothness of the material |
| C. | degree of fineness of the material |
| D. | all of the above |
| Answer» E. | |
| 23. |
Automatic scales can be used with |
| A. | belt conveyors |
| B. | apron conveyors |
| C. | pivoted bucked carriers |
| D. | Any of the above |
| Answer» E. | |
| 24. |
The maximum degree of broad gauge line is |
| A. | 10? |
| B. | 12? |
| C. | 14? |
| D. | 8? |
| Answer» C. 14? | |
| 25. |
A jack having 2 cm as the diameter of the screw at the root of the thread, may be expected to safely lift a load of about |
| A. | 25 to 30 tonnes |
| B. | 5 to 7 tonnes |
| C. | 35 to 40 tonnes |
| D. | 40 to 50 tonnes |
| Answer» D. 40 to 50 tonnes | |
| 26. |
A chain link while in use may be subjected to |
| A. | bending |
| B. | shear |
| C. | tension |
| D. | Any of the above |
| Answer» E. | |
| 27. |
A four wheel drive has |
| A. | differential on rear side only |
| B. | differential on front side only |
| C. | both front as well as rer differentials |
| D. | no differential |
| Answer» D. no differential | |
| 28. |
Flight conveyors are mainly used for conveying |
| A. | iron ore |
| B. | bauxite |
| C. | coal |
| D. | grains |
| Answer» E. | |
| 29. |
Which one of the following shovel excavators is considered most efficient in loading carriers? |
| A. | Dipper shovel |
| B. | Clam shell |
| C. | Back hoe |
| D. | Drag line |
| Answer» B. Clam shell | |
| 30. |
Which of the following resistance depends on the train speed? |
| A. | Journal friction |
| B. | Track resistance |
| C. | Frictional resistance |
| D. | all of the above |
| Answer» E. | |
| 31. |
Car shakers are often used for |
| A. | unloading of coal |
| B. | loading of granular materials |
| C. | both (A) and (B) above |
| D. | None of the above |
| Answer» B. loading of granular materials | |
| 32. |
In case of electric traction, power supply frequency for 25 kV single phase system is |
| A. | 60 Hz |
| B. | 16? Hz |
| C. | 25 Hz |
| D. | 50 Hz |
| Answer» F. | |
| 33. |
In case of an overhead travelling crane, the hoisting unit is supported on |
| A. | a pillar |
| B. | a bridge |
| C. | a tower |
| D. | Any of the above |
| Answer» C. a tower | |
| 34. |
The distance between the rails of a metre gauge railway line is |
| A. | One metre |
| B. | 4 ft, 6 |
| C. | 3 ft, 9 |
| D. | 0.692 metre |
| Answer» B. 4 ft, 6 | |
| 35. |
Electric motor used for skip hoists may be |
| A. | dc motor |
| B. | Slip ring type induction motor |
| C. | Ward Leonard system |
| D. | Any of the above |
| Answer» E. | |
| 36. |
In electric traction, the torque exerted is |
| A. | continuous, pulsating |
| B. | pulsating, continuous |
| C. | pulsating, pulsating |
| D. | continuous, continuous |
| Answer» B. pulsating, continuous | |
| 37. |
In case of pneumatic system, a receiver is |
| A. | a device for storing compressed air |
| B. | a divice for storing atmospheric air |
| C. | a device for cleaning air |
| D. | a device for cooling air |
| Answer» B. a divice for storing atmospheric air | |
| 38. |
We know that acid phosphate (damp) adheres to the belt of belt conveyor. Which of the following conveyor will be preferred for conveying this material? |
| A. | Screw conveyor |
| B. | Flight conveyor |
| C. | pneumatic conveyor |
| D. | Any of the above |
| Answer» B. Flight conveyor | |
| 39. |
Pneumatic conveyors are generally used for conveying |
| A. | package goods |
| B. | granular material |
| C. | mineral ores |
| D. | heavy goods |
| Answer» C. mineral ores | |
| 40. |
In case of screw conveyors, cut flights are used for |
| A. | grains |
| B. | cereals |
| C. | light materials |
| D. | all of the above |
| Answer» E. | |