building materials and construction MCQs – Page 5

Practise focused building materials and construction questions with marked answers for exam preparation and subject revision.

building materials and construction Mcqs

81. Le Chateliers device is used for determining the_______________?
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A. compressive strength of cement

B. soundness of cement

C. setting time of cement

D. tensile strength of cement

82. The ratio of the thickness of web to that of flange of steel rolled structural beams and channels is______________?
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A. less than 1 in beams but greater than 1 in channels

B. greater than 1

C. less than 1

D. equal to 1

83. A queen closer is a______________?
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A. brick laid with its breadth parallel to the face or direction of wall

B. brick laid with its length parallel to the face or direction of wall

C. brick having the same length and depth as the other bricks but half the breadth

D. brick with half the width at one end and full width at the other

84. The maximum quantity of calcium chloride used as an accelerator in cement in percentage by weight of cement is_______________?
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A. 2

B. 3

C. 4

D. 1

85. For testing compressive strength of cement, the size of cube used is_______________?
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A. 100 mm

B. 70.6 mm

C. 150 mm

D. 50 mm

86. Three basic raw materials which are needed in large quantities for production of steel are_______________?
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A. iron ore, carbon and lime stone

B. iron ore, coal and lime stone

C. iron ore, coal and sulphur

D. iron ore, carbon and sulphur

87. Sandstone is a ________________?
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A. ="color: #003f1a;">i. sedimentary rock

B. aqueous rock

C. . silicious rock </strong></span>

88. Jumper is a tool used for_______________?
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A. quarrying of stones

B. none of the above

C. dressing of stones

D. testing of stones

89. The ultimate tensile strength of structural mild steel is about_________________?
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A. 160N/mm2

B. 260N/mm2

C. 420 N/mm2

D. 520 N/mm2

90. The vertical distance between the springing line and highest point of the innercurve of an arch is known as______________?
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A. extrados

B. rise

C. spandril

D. intrados

91. The type of roof suitable in plains where rainfall is meagre and temperature is high is______________?
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A. flat roof

B. shell roof

C. pitched and sloping roof

D. none of the above

92. The basic purpose of a retarder in concrete is_____________?
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A. to increase the initial setting time of cement paste in concrete

B. to decrease the initial setting time of cement paste in concrete

C. to improve the workability of concrete mix

D. to render the concrete more water tight

93. The age of a tree can be known by examining_________________?
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A. heart wood

B. annular rings

C. medullary rays

D. cambium layer

94. In case of foundations on black cotton soils, the most suitable method to increase the bearing capacity of soils is to_________________?
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A. compact the soil

B. drain the soil

C. increase the depth of foundation

D. replace the poor soil

95. Minimum thickness of wall where single flemish bond can be used is_____________?
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A. two bricks thick

B. one brick thick

C. one and a half bricks thick

D. half brick thick

96. The percentage of alumina in a good brick earth lies between________________?
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A. 20 to 30%

B. 50 to 60%

C. 70 to 80%

D. 5 to 10%

97. The radial splits which are wider on the outside of the log and narrower towards the pith are known as________________?
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A. heart shakes

B. rindgalls

C. starshakes

D. cupshakes

98. The stretcher bond in brick masonry can be used only when the thickness of wall is_____________?
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A. 190 mm

B. 180 mm

C. 90 mm

D. 280 mm

99. The proportions of lime and sand in the mortar normally used in brick construction are_______________?
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A. 1:2

B. 1:06

C. 1:04

D. 1:08

100. The triangular space formed between the extrados and the horizontal line drawn through the crown of an arch is known as_____________________?
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A. haunch

B. voussoirs

C. spandril

D. skewbacks

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