McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Civil Engineering .
Chapters
| 51. |
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 |
| Answer» B. contact with water and chemicals for long time | |
| 52. |
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 |
| Answer» B. erroneous seasoning | |
| 53. |
Which one of the following is not a preservative of timber |
| A. | solignum salt |
| B. | chemical salt |
| C. | creosote |
| D. | solution of barium hydroxide |
| Answer» D. solution of barium hydroxide | |
| 54. |
A thin sheet of wood sliced from log is called |
| A. | plywood |
| B. | lamin board |
| C. | veneer |
| D. | particle board |
| Answer» C. veneer | |
| 55. |
In a plywood the veneers are placed such that the gra ns 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 |
| Answer» C. at right angles to the layer below it | |
| 56. |
Plywood is identified by |
| A. | volume |
| B. | weight |
| C. | area |
| D. | thickness |
| Answer» D. thickness | |
| 57. |
An assembled product made up of veneers and adhesives is called |
| A. | batten |
| B. | plank |
| C. | board |
| D. | plywood |
| Answer» D. plywood | |
| 58. |
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 |
| Answer» A. chips of wood, rice husk and bagasse | |
| 59. |
The wood that cannot be attacked by white ants is |
| A. | mahogany |
| B. | rosewood |
| C. | sissoo |
| D. | teak |
| Answer» D. teak | |
| 60. |
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 |
| Answer» C. 190 × 90 × 90 mm | |
| 61. |
Red colour of brick is due to the pre ence of |
| A. | lime |
| B. | silica |
| C. | manganese |
| D. | iron oxide |
| Answer» D. iron oxide | |
| 62. |
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 |
| Answer» C. melt and lose shape | |
| 63. |
Excess of iron oxide in brick earth makes the bricks |
| A. | stronger |
| B. | darker |
| C. | brittle |
| D. | crack |
| Answer» B. darker | |
| 64. |
Alumina in brick earth gives the bricks |
| A. | strength |
| B. | colour |
| C. | plasticity |
| D. | resistance to shrinkage |
| Answer» C. plasticity | |
| 65. |
Excess of alkalies in the brick earth results into |
| A. | Brittleness |
| B. | white patches |
| C. | yellowish colour |
| D. | porous structure |
| Answer» B. white patches | |
| 66. |
Pug mill is used to |
| A. | blend clay |
| B. | tempering |
| C. | weathering clay |
| D. | burning bricks |
| Answer» B. tempering | |
| 67. |
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 |
| Answer» A. 10% more | |
| 68. |
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 |
| Answer» B. to mount the mould | |
| 69. |
In stiff mud process of machine moulding, water used for mixing is |
| A. | 8–12% |
| B. | 12–18% |
| C. | 20–24% |
| D. | 30% |
| Answer» B. 12–18% | |
| 70. |
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 |
| Answer» B. permit shrinkage without cracking | |
| 71. |
The brick is considered dry when the moisture content is |
| A. | 8% |
| B. | 5% |
| C. | 2% |
| D. | zero |
| Answer» C. 2% | |
| 72. |
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 |
| Answer» B. 15, 2 | |
| 73. |
The indentation mark left on bricks during the process of moulding are |
| A. | pallets |
| B. | fillets |
| C. | marks |
| D. | frog |
| Answer» D. frog | |
| 74. |
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 |
| Answer» C. control on burning process is good | |
| 75. |
Continuous kiln is |
| A. | bull’s trench kiln |
| B. | Hoffman’s kiln |
| C. | tunnel kiln |
| D. | all of the above |
| Answer» D. all of the above | |
| 76. |
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 |
| Answer» C. 3.5 N/mm2 | |
| 77. |
To check the size of brick number of bricks to be kept side by side is |
| A. | 30 |
| B. | 20 |
| C. | 10 |
| D. | 5 |
| Answer» B. 20 | |
| 78. |
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 |
| Answer» B. IInd Class | |
| 79. |
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 |
| Answer» A. 40 N/mm2 | |
| 80. |
Thickness of web of hollow bricks should not be less than |
| A. | 20 mm |
| B. | 16 mm |
| C. | 12 mm |
| D. | 8 mm |
| Answer» D. 8 mm | |
| 81. |
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 |
| Answer» A. 40 N/mm2 | |
| 82. |
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 |
| Answer» B. 1.0 m | |
| 83. |
For making stabilized soil brick the soil is stabilized with |
| A. | sand |
| B. | coal |
| C. | cement |
| D. | salt |
| Answer» C. cement | |
| 84. |
Refractory bricks resist |
| A. | high temperature |
| B. | chemical action |
| C. | action of frost |
| D. | all of the above |
| Answer» A. high temperature | |
| 85. |
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 |
| Answer» A. towards eve | |
| 86. |
Maximum water absorption permitted on class AA type Mangalore tiles is |
| A. | 13% |
| B. | 15% |
| C. | 17% |
| D. | 19% |
| Answer» D. 19% | |
| 87. |
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 |
| Answer» B. Pan tiles are weaker than half round tiles | |
| 88. |
Terracotta means |
| A. | insulated |
| B. | fit for sanitary services |
| C. | good for ornamental work |
| D. | baked earth |
| Answer» D. baked earth | |
| 89. |
Water absorption of vitrified tiles is not more than |
| A. | 0.5% |
| B. | 1.0% |
| C. | 2.0% |
| D. | 5.0% |
| Answer» A. 0.5% | |
| 90. |
To make terracotta porous, the following is mixed with clay before burning. |
| A. | lime |
| B. | silica |
| C. | sawdust |
| D. | none of the above |
| Answer» C. sawdust | |
| 91. |
By calcining and smelting iron ores, a crude and impure form of iron obtained is known as |
| A. | cast iron |
| B. | wrought iron |
| C. | steel |
| D. | pig iron |
| Answer» D. pig iron | |
| 92. |
The colour of cast iron is |
| A. | grey |
| B. | white |
| C. | both grey and white |
| D. | none of the above |
| Answer» C. both grey and white | |
| 93. |
The compressive and tensile strength of cast iron are |
| A. | 700 N/m2 and 150 N/mm2 |
| B. | 600 N/mm2 and 400 N/mm2 |
| C. | 415 N/mm2 and 415 N/mm2 |
| D. | 400 N/mm2 and 600 N/mm2 |
| Answer» A. 700 N/m2 and 150 N/mm2 | |
| 94. |
For making spiral staircases, ideal material is |
| A. | pig iron |
| B. | cast iron |
| C. | wrought iron |
| D. | steel |
| Answer» B. cast iron | |
| 95. |
Purest form of iron is |
| A. | pig iron |
| B. | cast iron |
| C. | wrought iron |
| D. | steel |
| Answer» C. wrought iron | |
| 96. |
Carbon content in wrought iron is |
| A. | 0.15% |
| B. | 0.25 to 1.5% |
| C. | 2 to 4% |
| D. | more than 4% |
| Answer» A. 0.15% | |
| 97. |
The ratio of tensile strength to compressive strength of steel is |
| A. | less than 1 |
| B. | equal to 1 |
| C. | more than 1 |
| D. | nothing can be said definitely |
| Answer» B. equal to 1 | |
| 98. |
Ribs are made on steel wires to increase |
| A. | strength is compression |
| B. | strength is tension |
| C. | bond strength |
| D. | fatigue quality |
| Answer» C. bond strength | |
| 99. |
The property of metal enabling it to be drawn into thin weir is known as |
| A. | malleability |
| B. | ductility |
| C. | toughness |
| D. | plasticity |
| Answer» B. ductility | |
| 100. |
Non-ferrous Materials |
| A. | Market form of copper is/are |
| B. | ingots |
| C. | sheets |
| D. | tubes |
| Answer» D. tubes | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.