building materials and construction MCQs – Page 6

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

building materials and construction Mcqs

101. The minimum depth of foundation in clayey soils is_______________?
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A. 1.2 m

B. 0.9 m

C. 0.7 m

D. 0.5 m

102. Crushing strength of a first class brick should not be less than_____________?
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A. 7.0 N/mm2

B. 10.5 N/mm2

C. 14.0 N/mm2

D. 3.5 N/mm2

103. Which of the following timbers is suitable for making sports goods ?
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A. mulberry

B. sal

C. mahogany

D. deodar

104. The main constituent which imparts hydraulicity to hydraulic lime is______________?
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A. silica

B. calcium oxide

C. clay

D. water

105. The type of arch generally constructed over a wooden lintel or over a flat arch for the purpose of carrying the load of the wall above is_______________?
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A. relieving arch

B. pointed arch

C. segmental arch

D. flat arch

106. For testing compressive and tensile strength of cement, the cement mortar is made by mixing cement and standard sand in the proportions of___________________?
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A. 1:06

B. 1:02

C. 1:04

D. 1:3

107. Granite is not suitable for ordinary building purpose because_______________?
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A. it can not be polished

B. it is not a fire proof material

C. it is costly

D. it has less crushing strength

108. Assertion A : Pure lime takes a long time to develop adequate strength. Reason R : Pure lime has slow hardening characteristics. Select your answer according to the coding system given below ?
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A. Both A and R are true and R is correct explanation of A

B. Both A and R are true and R is not a correct explanation of A

C. A is true but R is false

D. A is false but R is true

109. Plywood is made by bonding together thin layers of wood in such a way that the angle between grains of any layer to grains of adjacent layers is_________________?
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A. 0

B. 45

C. 90

D. 30

110. Quick lime is_______________?
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A. calcium carbonate

B. none of the above

C. calcium oxide

D. calcium hydroxide

111. Which of the following cements contains maximum percentage of dicalcium silicate?
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A. ordinary Portland cement

B. sulphate resisting cement

C. rapid hardening cement

D. low heat cement

112. The important test to be conducted on a stone used in docks and harbors is________________?
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A. work ability test

B. toughness test

C. weight test

D. hardness test

113. The disease of dry rot in timber is caused by_____________?
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A. lack of ventilation

B. none of the above

C. alternate wet and dry conditions

D. complete submergence in water

114. The initial setting time for ordinary Portland cement as per IS specifications should not be less than_____________?
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A. 600 minutes

B. 30 minutes

C. 10 minutes

D. 60 minutes

115. The plywood______________?
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A. has greater impact resistance to blows than ordinary wood

B. can be spilt in the plane of the panel

C. has good strength along the panel only

D. cannot be bent more easily than ordinary wood of same thickness

116. Crushing strength of a good building stone should be more than____________?
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A. 100 MPa

B. 50 MPa

C. 150 MPa

D. 200 MPa

117. In brick masonry the bond produced by laying alternate headers and stretchers in each course is known as_______________?
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A. zigzag bond

B. double flemish bond

C. single flemish bond

D. English bond

118. The practical limit of moisture content achieved in air drying of timber is________________?
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A. 35%

B. 5%

C. 25%

D. 15%

119. The internal size of mould used in brick preparation is__________________?
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A. none of the above

B. equal to the size of a fully burnt brick

C. smaller than the size of a fully burnt brick

D. greater than the size of a fully burnt brick

120. First class timber has an average life of_____________?
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A. 1 to 5 years

B. more than 10 years

C. 5 to 10 years

D. less than one year

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