1. The rocks formed due to solidification of molten mass are called
(a) aqueous rocks
(b) sedimentary rocks
(c) metamorphic rocks
(d) igneous rocks
2. Granite is an example of
(a) aqueous rocks
(b) sedimentary rocks
(c) metamorphic rocks
(d) igneous rocks
3. Solidification of molten magma at the surface of the earth results in the formation of
(a) sedimentary rock
(b) basalt and traps
(c) granite
(d) metamorphic rock
4. Solidification of molten magma within the earth’s crust results in the formation of
(a) sedimentary rock
(b) basalt and trap
(c) granite
(d) metamorphic rack
5. Sedimentary rocks are formed due to
(a) solidification of molten mass
(b) gradual deposition of materials like sand, clay, generally by setting water
(c) alteration of original stones under heat and pressure
(d) none of the above
6. In the options given in question No. 5, identify the process responsible for the formation of
metamorphic rocks.
7. Under metamorphism, which of the following changes is correct?
(a) granite changes to gnesis.
(b) trap and basalt change into laterite.
(c) limestones change into marble.
(d) all the above
8. Granite has
(a) crystalline, glossy and fused texture
(b) foliated structure
(c) layers of different compositions
(d) none of the above
9. The principal constituent of argillaceous rock is
(a) sand
(b) lime
(c) clay
(d) all the above
10. Laterite is chemically classified as
(a) calcareous rock
(b) siliceous rock
(c) metamorphic rock
(d) argillaceous rock
11. Which of the following is an example of siliceous rock?
(a) granite
(b) gnesis
(c) quartzite
(d) all the above
12. Marble is an example of
(a) aqueous rock
(b) metamorphic rock
(c) sedimentary rock
(d) igneous rock
13. Slate is used for
(a) building walls
(b) road metal
(c) manufacture of cement
(d) roofing
14. Which one of the following takes polish very well?
(a) basalt and trap
(b) granite
(c) sandstone
(d) quartzite
15. The colour of granite is
(a) grey
(b) green
(c) brown
(d) all of these
16. A fine grained granite
(a) can be polished well
(b) can be used for exterior facing of buildings
(c) offers higher resistance to weathering
(d) all of the above
17. Siliceous sand subjected to metamorphic action is known as
(a) laterite
(b) murram
(c) quartzite
(d) dolomite
18. When quarrying is to be done in hard and compact rocks, the usual method employed is
(a) wedging
(b) using channeling machine
(c) blasting
(d) all of the above
19. Quarrying by using channeling machine is employed for quarrying in
(a) soft rock
(b) hard rock
(c) sandstones
(d) all the above
20. Heating technique of breaking rocks is suitable if the aim is to get
(a) aggregates
(b) slabs
(c) building blocks
(d) none of the above
21. The process of taking out stones of various sizes from natural rock is known as
(a) dressing
(b) seasoning
(c) polishing
(d) quarrying
22. The process of giving required shape and size to stones is known as
(a) dressing
(b) seasoning
(c) polishing
(d) quarrying
23. Boasted finish of dressing stone is
(a) making non-continuous parallel marks
(b) giving finish to a 20 mm margin only at edges
(c) providing continuous lines on the face
(d) working out 30–50 mm wide margin around the face with chisel
24. Dressing of the stone is made
(a) immediately after quarrying
(b) after three months of quarrying
(c) just before using for building works
(d) after seasoning
25. The most powerful explosive used in blasting is
(a) gunpowder
(b) guncotton
(c) dynamite
(d) cordite
26. Moisture absorption of a good stone should be less than
(a) 1%
(b) 5%
(c) 8%
(d) 12%
27. Most of the stones possess the specific gravity in the range of
(a) 1.2 – 1.6
(b) 1.6 – 2.0
(c) 2.4 – 2.8
(d) 3.0 – 4.0
28. Which of the following has the lowest strength?
(a) granite
(b) sandstone
(c) marble
(d) laterite
29. Limestone used for manufacture of cement is
(a) kankar
(b) magnesium limestone
(c) compact limestone
(d) granular limestone
30. Which of the following has the highest crushing strength?
(a) granite
(b) gneiss
(c) basalt
(d) trap
31. Which of the following stone has the highest resistance to fire?
(a) granite
(b) limestone
(c) sandstone
(d) argillaceous material
32. Smith’s test on stone is to check
(a) toughness
(b) hardness
(c) compressive strength
(d) presence of muddy substance
33. Los Angeles testing machine is used to find the following in stone
(a) surface wear
(b) hardness
(c) compressive strength
(d) presence of mud
34. Impact value of stone for road work specified are
(a) wearing coat 30%
(b) bituminous macadam 35%
(c) water bound macadam 40%
(d) all the above
35. Deterioration of stones takes place due to
(a) temperature variation
(b) freezing and thawing
(c) rainwater
(d) all of the above
36. Which one of the following is not a preservative of stone
(a) coal tar
(b) paraffin
(c) linseed oil
(d) ASCU
Timber
37. After felling and separating branches the tree is known as
(a) log
(b) converted timber
(c) rough timber
(d) none of the above
38. Which one of the following does not belong to exogenous tree
(a) deodar
(b) pine
(c) mahogany
(d) bamboo
39. Which one of the following dose not belong to endogenous trees
(a) teak
(b) coconut
(c) bamboo
(d) cane
40. On the basis of durability test, Forest Research Institute of India, Dehradun, a tree is highly
durable if its average life is more than
(a) 5 years
(b) 10 years
(c) 15 years
(d) 20 years
41. The trees, of which leaves fall in autumn and new ones appear in spring are classified as
(a) coniferous trees
(b) deciduous trees
(c) endogenous trees
(d) none of the above
42. The oldest part of exogenous tree is
(a) pith
(b) heartwood
(c) sapwood
(d) cambium layer
43. Age of exogenous tree can be judged from
(a) medullary rays
(b) annual rings
(c) cambium layer
(d) inner bark
44. The layer between the dark and sapwood which is yet to be converted into wood is known as
(a) pith
(b) heartwood
(c) softwood
(d) cambium layer
45. Which one of the following is softwood
(a) deodar
(b) teak
(c) sal
(d) mahogany
46. Which one of the following is not a softwood:
(a) oak
(b) pine
(c) deodar
(d) bamboo
47. On the basis of availability, timber is classified as
(a) I. II, III Class
(b) grade I, II, and III
(c) A, B, C Class
(d) X, Y, Z Class
48. The main purpose of seasoning of timber is to
(a) reduce moisture content
(b) make it fire resistant
(c) make it waterproof
(d) none of the above
49. Seasoning makes timber
(a) durable
(b) light, strong and stable
(c) resistant to fungi and termites
(d) all of the above
50. Which of the following statements is not correct?
(a) by kiln seasoning moisture content can be reduced to the desired extent.
(b) kiln seasoning is quicker than natural seasoning.
(c) kiln seasoning is superior to natural seasoning.
(d) kiln seasoning needs less stacking place than natural seasoning.
51. In water seasoning
(a) timber is placed with thicker end pointing upstream
(b) timber is placed with thicker end pointing downstream
(c) timber log is placed at right angle to the stream
(d) timber may be placed in any direction
52. Most economical method of sawing wood is
(a) ordinary sawing
(b) quarter sawing
(c) tangential sawing
(d) radial sawing
53. Sections of more uniform moisture content are obtained by
(a) ordinary sawing
(b) quarter sawing
(c) tangential sawing
(d) radial sawing
54. The defect in timber due to broken branch of the tree during the tree growth is
(a) knot
(b) shake
(c) rind gall
(d) burl
55. Due to improper cutting of the branches during the growth of the tree, the defect caused in timber
is
(a) shake
(b) rind gall
(c) twisted fibre
(d) burl
56. Stain appears in wood due to
(a) poor ventilation during storage
(b) contact with water and chemicals for long time
(c) shock when it was young
(d) crushing during growth
57. Honeycomb and cracks may occur in timber due to
(a) erroneous conversion
(b) erroneous seasoning
(c) attack by fungi
(d) contact with water for a long time
58. Which one of the following is not a preservative of timber
(a) solignum salt
(b) chemical salt
(c) creosote
(d) solution of barium hydroxide
59. A thin sheet of wood sliced from a log is called
(a) plywood
(b) lamin board
(c) veneer
(d) particle board
60. In a plywood the veneers are placed such that the grains of a layer are
(a) at 45° to the grains of a layer below it
(b) at 60° to the grains of a layer below it
(c) at right angles to the layer below it
(d) at 180° to the grains of a layer below it
61. Plywood is identified by
(a) volume
(b) weight
(c) area
(d) thickness
62. An assembled product made up of veneers and adhesives is called
(a) batten
(b) plank
(c) board
(d) plywood
63. To get plywood of thickness 25 mm, minimum number of plies is
(a) 5
(b) 7
(c) 9
(d) 11
64. Particle boards are manufactured by using
(a) chips of wood, rice husk and bagasse
(b) strips of wood of width 25–80 mm
(c) wood pulp
(d) none of the above
65. The wood that cannot be attacked by white ants is
(a) mahogany
(b) rosewood
(c) sissoo
(d) teak
66. The standard size of bricks as per Indian Standards is
(a) 230 × 120 × 80 mm
(b) 200 × 100 × 100 mm
(c) 190 × 90 × 90 mm
(d) 190 × 100 × 100 mm
67. Red colour of brick is due to the presence of
(a) lime
(b) silica
(c) manganese
(d) iron oxide
68. Excess of lime in the brick earth makes the bricks
(a) brittle and weak
(b) crack and warp
(c) melt and lose shape
(d) improve durability
69. Excess of iron oxide in brick earth makes the bricks
(a) stronger
(b) darker
(c) brittle
(d) crack
70. Alumina in brick earth gives the bricks
(a) strength
(b) colour
(c) plasticity
(d) resistance to shrinkage
71. Excess of alkalies in the brick earth results into
(a) brittleness
(b) white patches
(c) yellowish colour
(d) porous structure
72. Pug mill is used to
(a) blend clay
(b) tempering
(c) weathering clay
(d) burning bricks
73. The size of mould used for making bricks compared to size of brick is
(a) 10% more
(b) 5% more
(c) exactly equal
(d) 5% less
74. Pallet board is used to
(a) make frog in the brick
(b) to mount the mould
(c) for table moulding of bricks
(d) none of the above
75. In stiff mud process of machine moulding, water used for mixing is
(a) 8–12%
(b) 12–18%
(c) 20–24%
(d) 30%
76. Gradual drying of moulded bricks is necessary to
(a) prevent shrinkage
(b) permit shrinkage without cracking
(c) permit blending of alumina and silica
(d) none of the above
77. The brick is considered dry when the moisture content is
(a) 8%
(b) 5%
(c) 2%
(d) zero
78. Hand moulded bricks take ______ days for drying while stiff-mud machine made bricks ______
days.
(a) 30, 5
(b) 15, 2
(c) 10, 1
(d) 8, 1/4
79. The indentation mark left on bricks during the process of moulding are
(a) pallets
(b) fillets
(c) marks
(d) frog
80. Which one of the following statements is wrong about clamp burning
(a) it is cheap
(b) does not need skilled labour
(c) control on burning process is good
(d) burning process is slow
81. Continuous kiln is
(a) bull’s trench kiln
(b) Hoffman’s kiln
(c) tunnel kiln
(d) all of the above
82. The minimum strength of brick required for building wall is
(a) 7.5 N/mm2
(b) 5.0 N/mm2
(c) 3.5 N/mm2
(d) 2.5 N/mm2
83. To check the size of brick number of bricks to be kept side by side is
(a) 30
(b) 20
(c) 10
(d) 5
84. The bricks which may be used to build wall but to be provided with plaster are
(a) Ist Class
(b) IInd Class
(c) IIIrd Class
(d) IVth Class
85. The compressive strength of high duty bricks should be more than
(a) 40 N/mm2
(b) 20 N/mm2
(c) 5 N/mm2
(d) 3.5 N/mm2
86. Thickness of web of hollow bricks should not be less than
(a) 20 mm
(b) 16 mm
(c) 12 mm
(d) 8 mm
87. Compressive strength of paving bricks should not be less than
(a) 40 N/mm2
(b) 30 N/mm2
(c) 20 N/mm2
(d) 40 N/mm2
88. Field test for strength of good bricks is to drop it from a height of ______ and they should not
break
(a) 1.2 m
(b) 1.0 m
(c) 0.7 m
(d) 0.75 m
89. For making stabilized soil brick the soil is stabilized with
(a) sand
(b) coal
(c) cement
(d) salt
90. Refractory bricks resist
(a) high temperature
(b) chemical action
(c) action of frost
(d) all of the above
Clay Products
91. In case of round tiles, under-tiles are used with their narrow ends
(a) towards eve
(b) towards ridge
(c) towards valley
(d) in any one fashion
92. Maximum water absorption permitted on class AA type Mangalore tiles is
(a) 13%
(b) 15%
(c) 17%
(d) 19%
93. Which of the following statement is wrong?
(a) Pan tiles are similar to half round tiles but less curved
(b) Pan tiles are weaker than half round tiles
(c) Allahabad tiles are interlocking tiles
(d) Mangalore tiles are also interlocking tiles
94. The word vitrified means
(a) glazed
(b) like glass
(c) given attractive colour
(d) all of the above
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