McqMate
1. |
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» D. all of the above |
2. |
In case of electric traction, power supply frequency for 25 kV single phase system is |
A. | 60 Hz |
B. | 16? Hz |
C. | 25 Hz |
E. | 50 Hz |
Answer» E. 50 Hz |
3. |
The number of cylinders in case of steam locomotives is |
A. | Eight |
B. | Four |
D. | Two |
E. | One |
Answer» D. Two |
4. |
In case of screw conveyors, cut flights are used for |
A. | grains |
B. | cereals |
C. | light materials |
D. | all of the above |
Answer» D. all of the above |
5. |
Which one of the following shovel excavators is considered most efficient in loading carriers? |
A. | Dipper shovel |
C. | Clam shell |
D. | Back hoe |
E. | Drag line |
Answer» A. Dipper shovel |
6. |
In screw conveyors, ribbon screws are used for |
A. | wet and sticky materials |
B. | granular materials |
C. | none of the above |
Answer» A. wet and sticky materials |
7. |
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 |
C. | 5 to 7 tonnes |
D. | 35 to 40 tonnes |
E. | 40 to 50 tonnes |
Answer» C. 5 to 7 tonnes |
8. |
Automatic scales can be used with |
A. | belt conveyors |
B. | apron conveyors |
C. | pivoted bucked carriers |
D. | Any of the above |
Answer» D. Any of the above |
9. |
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» D. all of the above |
10. |
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» A. unloading of coal |
11. |
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» C. both front as well as rer differentials |
12. |
The maximum degree of broad gauge line is |
B. | 10? |
C. | 12? |
D. | 14? |
E. | 8? |
Answer» B. 10? |
13. |
In case of flight conveyors the angle of flight is seldom allowed to exceed |
B. | 75? |
C. | 70? |
D. | 60? |
E. | 40? |
Answer» E. 40? |
14. |
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» A. a device for storing compressed air |
15. |
Flight conveyors are mainly used for conveying |
B. | iron ore |
C. | bauxite |
D. | coal |
E. | grains |
Answer» D. coal |
16. |
A chain link while in use may be subjected to |
A. | bending |
B. | shear |
C. | tension |
D. | Any of the above |
Answer» D. Any of the above |
17. |
In case of a single girder overhead travelling crane, the section used is |
A. | I-beam |
B. | Z-section |
D. | angle iron |
E. | a channel |
Answer» A. I-beam |
18. |
The distance between the rails of a metre gauge railway line is |
A. | One metre |
C. | 4 ft, 6 |
D. | 3 ft, 9 |
E. | 0.692 metre |
Answer» A. One metre |
19. |
Pneumatic conveyors are generally used for conveying |
A. | package goods |
B. | granular material |
C. | mineral ores |
E. | heavy goods |
Answer» B. granular material |
20. |
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» D. Any of the above |
21. |
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» A. Screw conveyor |
22. |
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» B. a bridge |
23. |
Which of the following material has the highest weight/volume ratio? |
A. | Barley |
B. | Coke |
C. | Limestone |
D. | Charcoal |
Answer» C. Limestone |
24. |
The expected life of a light commercial vehicle is nearly |
B. | 250,000 km |
C. | 150,000 km |
D. | 50,000 km |
E. | 350,000 km |
Answer» C. 150,000 km |
25. |
In electric traction, the torque exerted is |
A. | continuous, pulsating |
B. | pulsating, continuous |
D. | pulsating, pulsating |
E. | continuous, continuous |
Answer» A. continuous, pulsating |
26. |
A 90 HP tractor dozer working on a dozing distance of about 60 m will give an output of about |
A. | 4000 cu-m/hr |
B. | 4 cu-m/hr |
D. | 40 cu-m/hr |
E. | 400 cu-m/hr |
Answer» D. 40 cu-m/hr |
27. |
A 7.5 cu.m scraper working on a 150 m haul is expected to give an output of approximately |
A. | 1 cu-m/hr |
C. | 5 cu-m/hr |
D. | 100 cu-m/hr |
E. | 10 cu-m/hr |
Answer» D. 100 cu-m/hr |
28. |
The fuel consumption of a diesel engine per BHP per hour is nearly |
A. | 300 cc |
B. | 100 cc |
C. | 400 cc |
E. | 200 cc |
Answer» E. 200 cc |
29. |
Jacks may be |
A. | screw type |
B. | rack-and-lever type |
C. | hydraulic type |
D. | Any of the above |
Answer» D. Any of the above |
30. |
Pneumatic cranes are used where |
A. | electricity could be hazardous |
B. | advantage could be taken of existing air supply |
C. | either of (A) or (B) above |
Answer» C. either of (A) or (B) above |
31. |
The horse power of electric motor for a 50 tonne locomotive should be around |
A. | 5 HP |
B. | 750 HP |
C. | 7.5 HP |
D. | 75 HP |
Answer» B. 750 HP |
32. |
Which of the following condition of rail surface will offer the least resistance? |
A. | Greasy |
B. | Very dry |
D. | Average dampness |
E. | Very wet |
Answer» A. Greasy |
33. |
Which conveyor can be used for handling wood chips? |
A. | Belt conveyor |
B. | Pneumatic conveyor |
C. | Screw conveyor |
D. | Any of the above |
Answer» D. Any of the above |
34. |
The permissible belt slope while transporting wood chips will be |
B. | 27? |
C. | 12? |
D. | 20? |
E. | 15? |
Answer» B. 27? |
35. |
Alum is |
A. | hygroscopic |
B. | abrasive |
C. | none of the above |
Answer» B. abrasive |
36. |
Hoisting and haulage ropes are frequently greased to |
A. | minimize wear |
B. | prevent corrosion |
C. | both (A) and (B) above |
Answer» C. both (A) and (B) above |
37. |
All of these form explosive dust except |
A. | Starch |
C. | Pulverized Mica |
D. | Sulphur |
E. | Soyabean flour |
Answer» C. Pulverized Mica |
38. |
All of the following could be the reasons for the formation of kinks in a rail EXCEPT |
B. | Defect in gauge alignment |
C. | Temperature variation |
D. | Loose packing at joint |
E. | Uneven wear of the rail head |
Answer» C. Temperature variation |
39. |
The pressure of air in case of pneumatic tools is generally in the range |
B. | 4 to 6 kg/cm2 |
C. | 34 to 36 kg/cm2 |
D. | 24 to 26 kg/cm2 |
E. | 14 to 16 kg/cm2 |
Answer» B. 4 to 6 kg/cm2 |
40. |
Most of the lifting magnets are |
A. | not designed for continuous duty |
B. | designed for continuous duty |
Answer» A. not designed for continuous duty |
41. |
The maximum degree of curvature on metre gauge is |
B. | 12? |
C. | 16? |
D. | 10? |
E. | 8? |
Answer» C. 16? |
42. |
Which of the following locomotive has the highest operational availability? |
A. | Steam |
B. | Diesel |
C. | Electric |
Answer» C. Electric |
43. |
Average weight/volume ration for ash is around |
A. | 300 kg/m3 |
C. | 900 kg/m3 |
D. | 600 kg/m3 |
E. | 1200 kg/m3 |
Answer» D. 600 kg/m3 |
44. |
While dragging, the coefficient of friction (using steel plate) will be least in case of |
A. | anthracite coal |
B. | coke |
C. | bituminous coal |
D. | hog fuel |
Answer» A. anthracite coal |
45. |
The efficiency of diesel locomotive is in the range |
B. | 40 to 50 percent |
C. | 10 to 15 percent |
D. | 60 to 70 percent |
E. | 20 to 30 percent |
Answer» E. 20 to 30 percent |
46. |
A 6 x 7 steel wire rope indicates |
A. | The core wire has 6 mm diameter and it is covered by seven strands |
C. | The rope has six strands and each strand is composed of seven wires |
D. | The rope has 6 mm mean diameter and 7 mm outer diameter |
E. | the rope has six wires and each wire has seven strands |
Answer» C. The rope has six strands and each strand is composed of seven wires |
47. |
Kink' in a steel wire rope is produced |
A. | when the rope is permanently elongated due to overloading |
B. | when some strands are broken |
D. | when a rope with a loop or twist in its length is pulled tight |
E. | when the rope looses its springing action |
Answer» D. when a rope with a loop or twist in its length is pulled tight |
48. |
Cable ways are generally used in |
A. | mining areas for transportation of minerals |
B. | sleepers, pipes etc |
C. | heavy machinery |
D. | None of the above |
Answer» A. mining areas for transportation of minerals |
49. |
Which hoist is generally preferred for repetitive or high speed lifting? |
A. | Magnetic lifting hoist |
B. | Electric hoist |
C. | Hand chain hoist |
D. | None of the above |
Answer» B. Electric hoist |
50. |
Coarse salt is hygroscopic and corrosive in weight. It can be transported using |
A. | belt conveyors |
B. | flight conveyors |
C. | pneumatic conveyors |
D. | Any of the above |
Answer» D. Any of the above |
51. |
Highest density material is |
A. | Damp sand |
C. | Cement |
D. | Coarse salt |
E. | Lead salt |
Answer» E. Lead salt |
52. |
Which of the following material has the lowest weight/volume ratio? |
A. | Charcoal |
B. | Wheat |
C. | Lignite |
D. | Oats |
Answer» A. Charcoal |
53. |
Which hoist is often used in erection work? |
A. | Magnetic lifting hoist |
B. | Electric hoist |
C. | Hand chain hoist |
D. | all of the above |
Answer» C. Hand chain hoist |
54. |
Belt life is reduced by |
A. | impact of loading |
B. | conveying horizontally as compared to incline |
C. | using pulverized materials |
D. | all of the above |
Answer» A. impact of loading |
55. |
In case ac motors are used on E.O.T. the type of motor used is |
A. | synchronous motor |
B. | wound roto-induction motor |
C. | squirrel case induction motor |
D. | Any of the above |
Answer» B. wound roto-induction motor |
56. |
The number of sleepers per rail (n = length of rail in metres) |
A. | is n + 1 |
C. | varies from n + 9 to n + 12 |
D. | varies from n + 3 to n + 6 |
E. | varies from n + 1 to n + 3 |
Answer» D. varies from n + 3 to n + 6 |
57. |
Skip hoists used on blast furnaces are generally |
A. | manually driven |
C. | electric motor driven |
D. | air motor driven |
E. | steam engine driven |
Answer» C. electric motor driven |
58. |
The normal capacity of a one metre escalator is around |
B. | 1000 passengers per hour |
C. | 2000 to 3000 passengers per hour |
D. | 5000 to 6000 passengers per hour |
E. | 8000 to 10000 passengers per hour |
Answer» D. 5000 to 6000 passengers per hour |
59. |
The angle of repose for anthracite coal is around |
A. | 37? |
C. | 27? |
D. | 17? |
E. | 11? |
Answer» C. 27? |
60. |
Air hoists provide |
A. | slow speeds only |
B. | infinitely variable speeds |
C. | stepped movement |
D. | fast speeds only |
Answer» B. infinitely variable speeds |
61. |
Tanker type wagons are used on railways for the transportation of |
A. | oils |
C. | powders |
D. | fertilizers |
E. | grains |
Answer» A. oils |
62. |
Lifting magnets cannot be used for |
B. | handling materials above dull-red heat |
C. | under water handling |
D. | handling dust of magnetic materials |
E. | handling ferrous castings |
Answer» B. handling materials above dull-red heat |
63. |
Lift trucks are used in industries generally for the transportation of |
A. | batches of material |
B. | castings only |
C. | non-ferrous materials |
D. | heavy equipment |
Answer» A. batches of material |
64. |
Which of the following device is used for dragging the material? |
A. | Skip hoists |
B. | Escalators |
C. | Winches |
D. | Bucket elevators |
Answer» C. Winches |
65. |
Practically all power shovels can be converted for operation as |
A. | dragline excavators |
B. | cranes |
C. | both (A) and (B) above |
D. | None of the above |
Answer» C. both (A) and (B) above |
66. |
Which of the following shovel excavator has got the shortest cycle time? |
A. | Backhoe |
B. | Dipper shovel |
C. | Drag line |
D. | Clam shell |
Answer» B. Dipper shovel |
67. |
Which one of the following shovel excavator is not suitable for operation in hard soil or rock? |
A. | Drag line |
B. | Back hoe |
D. | Dipper shovel |
E. | Clam shell |
Answer» E. Clam shell |
68. |
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» B. facilitate unloading |
69. |
In case of skip hoists, complete control of speed from standstill to maximum for all values of load from maximum positive to maximum negative is obtainable while using |
A. | Slip ring induction motor |
B. | dc series motor |
C. | dc compound motor |
E. | Ward Leonard system of control |
Answer» E. Ward Leonard system of control |
70. |
Bull headed rails are generally provided at |
A. | points and crossings |
C. | curved tracks |
D. | bridges |
E. | bifurcation of tracks |
Answer» A. points and crossings |
71. |
The steam engine used on steam locomotive is |
A. | condensing, variable speed type |
B. | non-condensing, constant speed type |
C. | condensing, constant speed type |
E. | non-condensing, variable speed type |
Answer» E. non-condensing, variable speed type |
72. |
Identify the incorrect statement, if any |
A. | Crawler tractors are more compact and powerful |
B. | Crawler tractors can travel faster than wheel tractors |
C. | Crawler tractors are generally more costly than the wheeled tractors |
E. | Wheeled tractors are liable to slip over very smooth or loose fittings when increased power is applied to the wheels. |
Answer» B. Crawler tractors can travel faster than wheel tractors |
73. |
Which of the following has the lowest weight/volume ratio? |
A. | Chalk |
B. | Talc |
D. | Silica flour |
E. | Saw dust |
Answer» E. Saw dust |
74. |
The method of speed control used on 25 kV, 50 Hz single phase traction is |
A. | tap changing control of transformer |
B. | reduced current method |
C. | series parallel operation of motors |
D. | Any of the above |
Answer» A. tap changing control of transformer |
75. |
Which of the following is a hygroscopic material? |
A. | Purnice |
B. | Carbon black |
D. | Ammonium nitrate |
E. | Bone meal |
Answer» D. Ammonium nitrate |
76. |
A shovel having dipper capacity of one cubic metre working on good common earth will handle approximately |
A. | 100 cubic metres/hour |
B. | 175 cubic metres/hour |
C. | 15 cubic metes/hour |
E. | 45 cubic metres/hour |
Answer» B. 175 cubic metres/hour |
77. |
Which of the following material is corrosive? |
A. | Sulphur |
C. | Starch |
D. | Soap flakes |
E. | Zinc oxide |
Answer» A. Sulphur |
78. |
Which one of the following is not a excavating and moving type machine? |
A. | Clam shell |
B. | Drag line |
C. | Scraper |
E. | Dump truck |
Answer» E. Dump truck |
79. |
Boiler plant ash is generally handled using |
A. | hydraulic conveyors |
B. | belt conveyors |
C. | screw conveyors |
D. | any of the above |
Answer» A. hydraulic conveyors |
80. |
The overall efficiency of steam locomotive system is |
A. | 5 to 10 percent |
C. | 35 to 45 percent |
D. | 15 to 25 percent |
E. | 25 to 35 percent |
Answer» A. 5 to 10 percent |
81. |
The phenomenon of misalignment of rails due to temperature changes is known as |
A. | Buckling |
C. | Cropping |
D. | Hogging |
E. | Creeping |
Answer» A. Buckling |
82. |
Derricks are generally used |
A. | in quarries |
B. | for construction work |
C. | for outdoor works |
D. | Any of the above |
Answer» D. Any of the above |
83. |
Wood preferred for sleepers is |
A. | Chir |
B. | Shesham |
C. | Deodar |
E. | Sal |
Answer» A. Chir |
84. |
The overload capacity of a diesel engine is around |
A. | 10 percent |
B. | 50 percent |
C. | 1 percent |
D. | 25 percent |
Answer» A. 10 percent |
85. |
Which of the following key is not used in railway tracks? |
A. | Stuart key |
B. | Woodruff key |
D. | Cotter key |
E. | Morgan key |
Answer» B. Woodruff key |
86. |
In case of excalators, the angle of incline from horizontal is |
B. | 10? |
C. | 15? |
D. | 30? |
E. | 45? |
Answer» D. 30? |
87. |
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» D. all of the above |
88. |
Which of the following has lubricating action? |
B. | Graphite |
C. | Saw dust |
D. | Cottonseed |
E. | Rubber scrap |
Answer» B. Graphite |
89. |
A 25 mm wire rope sling can safely take a load of |
A. | 40 to 50 tonnes |
C. | 4 to 5 tonnes |
D. | 25 to 30 tonnes |
E. | 90 to 100 tonnes |
Answer» C. 4 to 5 tonnes |
90. |
While dragging, the coefficient of friction (using steel plate) will be maximum in case of |
B. | coke |
C. | bituminous coal |
D. | anthracite |
E. | hog fuel, dry |
Answer» C. bituminous coal |
91. |
Welded link wheel chains are surface hardened to |
A. | increase shock absorption capacity |
B. | increase load carrying capacity |
C. | provide adequate wear life |
D. | all of the above |
Answer» C. provide adequate wear life |
92. |
In case of skip hoists, the hoisting speed generally ranges from |
A. | 20 to 30 m/s |
B. | 6 to 15 m/s |
C. | 1 to 5 m/s |
E. | 30 to 50 m/s |
Answer» B. 6 to 15 m/s |
93. |
In case of hand powered cranes, the capacity is generally restricted to |
A. | 250 tonnes |
B. | 150 tonnes |
C. | 1 tonne |
D. | 50 tonnes |
Answer» D. 50 tonnes |
94. |
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» D. all of the above |
95. |
Arsenic salts are heavy as well as poisonous. Which of the following conveyor is preferred for its handling? |
A. | Belt conveyor |
B. | Screw conveyor |
C. | Flight conveyor |
D. | Any of the above |
Answer» B. Screw conveyor |
96. |
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» B. Vacuum braking system |
97. |
As compared to anthracite coal, the angle of repose for coke will be |
B. | more |
C. | less |
E. | same |
Answer» B. more |
98. |
In case of broad gauge track the distance between the rails is |
A. | 1.562 metre |
B. | 1.0 metre |
C. | 0.762 metre |
E. | 1.676 metre |
Answer» E. 1.676 metre |
99. |
Braking system is invariably incorporated in case of |
A. | Electric hoists |
B. | Magnetic hoists |
C. | Hand chain hoists |
D. | all of the above |
Answer» A. Electric hoists |
100. |
Jacks are portable, hand-operated devices for moving |
B. | heavy |
C. | heavy |
D. | light |
E. | light |
Answer» C. heavy |
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