3. Which one of these is not part of operation of crane?
Correct : A. digging
4. What is standard capacity of power driven scotch derric crane? (in tones)
Correct : A. 3 to 50
5. What is standard capacity of hand operated scotch derric crane? (in tones)
Correct : B. 5
6. Gantry cranes are used in……….
Correct : D. all of the above
7. What is maximum capacity of hand winches? (in tones)
Correct : B. 5
8. How many numbers of idlers are requires per Km length of belt conveyor?
Correct : A. 1000 to 1200
9. At which angle side rollers are tilted in belt conveyors?
Correct : B. 20º
10. Air vessel used for……….
Correct : D. all of the above
11. Which one of these is not a type of impeller?
Correct : D. semi close impeller
12. What is function of foot valve in pump?
Correct : A. to prevent the back flow of the water
13. Which factors affect the selection of pump?
Correct : D. all of the above
14. What is block weight of hand rammer? ( in kg)
Correct : B. 3 to 5
15. Which factor does not affect the compaction of soil by rolling?
Correct : D. operator’s skill
16. What is maximum weight of the sheep foot rollers? ( in tones)
Correct : A. 10
17. What is normal vibration time in the case of internal vibrator? (in sec.)
Correct : C. 5 to 20
18. What is the vibration frequency of the surface vibrator? (in cycles per min.)
Correct : B. 3000 to 6000
19. Which factors affect the selection of the drilling equipment?
Correct : D. all of the above
20. Which factor does not affect the drilling rate?
Correct : B. cost of equipment
21. Abrasion drill work on the principle of……….
Correct : B. grinding
22. Shot drill used a………….. for drilling.
Correct : A. steel shots
23. What is maximum cutting depth of shot drill?
Correct : A. 180m
24. Diamond drill used for………..
Correct : B. exploring drilling
25. Drifters can cut the hole up to depth of…….. (in cm)
Correct : B. 120
26. Which factor does not affect the selection of drilling pattern?
Correct : C. available water
27. Cone crusher act as……..
Correct : B. secondary crusher
28. Which factors affect the selection of crusher?
Correct : D. all of the above
29. Bucket ladder dredger is suitable for……..
Correct : D. all of the above
30. What is maximum digging depth of the dipper dredger? (in m)
Correct : A. 20
31. What is maximum dumping rang of the dipper dredger? (in m)
Correct : B. 35
32. What is maximum digging depth of the dipper dredger? (in m)
Correct : C. 25
33. What is maximum digging depth of the hydraulic dredger? (in m)
Correct : D. 15
34. Shotcrete is used for……
Correct : D. all of the above
35. What is rebound (in %) for horizontal walls?
Correct : A. 5 to 15
36. Which material can reduce a rebound of the concrete?
Correct : B. pozzolanic
37. What is rebound (in %) for vertical walls?
Correct : C. 15 to 30
38. What is rebound (in %) for overhead walls?
Correct : D. 20 to 50
39. The failure of foundation of a building is due to
Correct : D. all of these
40. The ability of sub-soil to support the load of the structure without yielding is known as
Correct : D. any one of these
41. The bearing capacity of soils can be improved by
Correct : D. all of the above
42. Dewatering is required for……
Correct : D. all of the above
43. Pile foundation is generally used when the soil is………
Correct : D. all of these
44. The type of foundation most suitable for bridges is
Correct : C. pile foundation
45. The piles which do not support the load by themselves, but act as a medium to transmit the
load from the foundation to the resisting sub-stratum, are known as
Correct : B. bearing piles
46. The piles which are driven in the type of soil whose strength does not increase with depth or
where the rate of increase in strength with depth is very slow, are known as
Correct : A. friction piles
47. The best spacing of timber piles from centre to centre is……
Correct : D. 900 mm
48. The maximum load on the wooden pile should not exceed
Correct : D. 200 kN
49. The length of pre-cast concrete piles varies from
Correct : D. 4.5 m to 30 m
50. A type of cast-in-situ pile best suited for places where the ground is soft and offers little
resistance to the flow of concrete, is
Correct : C. vibro-pile
51. The pre-stressed concrete piles as compared to pre-cast and reinforced concrete piles
Correct : D. all of these
52. A steel pile which function more efficiently in soft clay or loose sand, is
Correct : C. screw pile
53. A screw pile consists of cast iron or steel shaft of external diameter varying from
Correct : B. 150 to 300 mm
54. Sheet piles are made of
Correct : D. all of these
55. The coefficient of friction between the concrete and soil is
Correct : C. 0.30 to 0.35
56. When the depth of water is from 4.5 to 6 m, the type of cofferdam used is
Correct : C. single-walled cofferdam
57. A watertight structure constructed in connection with excavations for piers is………
Correct : A. caisson
58. Which of the following is type of cofferdam?
Correct : D. All of the above
59. Which cofferdam is suitable at place where velocity of flow is slow & depth of water is 1.5m?
Correct : B. Earth-fill cofferdam
60. Rockfill cofferdam can be construction up to _________ m water depth.
Correct : A. 3
61. Which cofferdam can be used at a place where working space is limited and depth of water is
about 4m?
Correct : C. Rock-filled crib cofferdam
62. Which cofferdam uses frame made of wooden logs to provide desired shape to cofferdam ?
Correct : C. Rock-filled crib cofferdam
63. Why sand bags are stacked inside single walled cofferdam?
Correct : D. To improve stability
64. Guide piles used in single walled cofferdam are made of which material?
Correct : B. Timber
65. Steel Sheet type double walled cofferdam is suitable at _________
Correct : D. All of the above
66. When large area consisting water depth up to 21m which cofferdam is suitable?
Correct : C. Cellular cofferdam
67. Which type of deep foundation is preferred when large area is to be covered at greater
depth?
Correct : B. Caisson
68. Which of the following is not a use of Caisson?
Correct : C. To serve as temporary impervious boundary
69. Which of the following is not a type of caisson?
Correct : B. Double Wall Caisson
70. Which caisson is used when excavation is not required?
Correct : A. Box Caisson
71. Box caisson can be used up to depth _________ m.
Correct : C. 8
72. Which of the following is not a type of Open Caisson?
Correct : B. Semi-Circle
73. Which of the following is a shape of well caisson?
Correct : D. All of the above
74. Which of the following is not a factor in choice of shape of wall?
Correct : C. Type of Soil at foundation
75. Which shape of well is most suitable to avoid horizontal forces?
Correct : A. Single Circular Shape
76. Which of the following is a component of well?
Correct : D. All of the above
77. Minimum thickness of steining should be _________ cm.
Correct : B. 45
78. Pneumatic cassions used for a depth up to____________m.
Correct : D. 35
79. Water is removed from pneumatic caisson using _________.
Correct : B. Passing pressurized air
80. Maximum pressure of air inside pneumatic caisson is _______ N/mm2
Correct : C. 0.35
81. Which are the sickness that cannot arise due to working in pneumatic caisson?
Correct : B. Diarrhea
82. At which temperature caisson sickness can be avoided?
Correct : C. 25° C
83. Which are the forces that acts on Caisson?
Correct : D. All of the above
84. Which of the following method is not used for Floating of Caisson?
Correct : A. Floating by Crane
85. By which method caisson can be sunk into hard rock?
Correct : B. Blasting
86. Why sand island method of sinking of caisson is used?
Correct : C. To stabilize caisson
87. Which are the problems that can arise during well sinking?
Correct : D. All of the above
88. Which of these problems can occur during de-watering of well?
Correct : A. Sand blowing
89. Tilting of well during sinking can occur due to _________ .
Correct : D. All of the above
90. The temporary casing is known as the ______
Correct : B. Formwork
91. Forms whose components can be reused several times are known as the ______
Correct : B. panel forms
92. The ______ of formwork plays an significant role in the cost of concrete.
Correct : A. Economy
93. The inside surface of formwork should be ________ so as to turn out a good concrete surface.
Correct : A. Smooth
94. The _______ formwork is used for formwork when it is desired to reuse the formwork several
times.
Correct : B. Steel
95. The column formwork consists of a box prepared from ______ separate sides.
Correct : C. Three
96. The form work for an RCC floor consists of a ________ to receive the concrete.
Correct : D. Skeleton
97. In formwork for wall, the _____ are provided by vertical Struts and horizontal wales.
Correct : C. Sheets
98. _______gives excellent exposed concrete surface requiring no further finishing treatment.
Correct : A. Steel
99. When form work is required for small ones requiring fewer repetitions, the ________ is
preferred to Steel.
Correct : B. Timber
100. It is found that a moisture content of about ______ is appropriate for the timber formwork.