building materials and construction Mcqs
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

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

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

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

121. Gypsum consists of______________?
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A. C02 and calcium

B. CaS04 and H20

C. H2S and C02

D. Lime and H20

123. Which of the following is a mineral ?
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A. basalt

B. quartz

C. syenite

D. granite

124. The type of bond provided in brick masonry for carrying heavy loads is___________?
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A. double flemish bond

B. English bond

C. zigzag bond

D. single flemish bond

125. Which of the following is a rock ?
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A. gypsum

B. mica

C. quartz

D. none of the above

126. The amount of water used for one kg of distemper is_____________?
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A. 0.2 liter

B. 0.8 liter

C. 0.6 liter

D. 0.4 liter

127. The type of joint commonly used at the junction of a principal rafter and tie beam in timber trussess is__________________?
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A. mortise and tennon joint

B. mitred joint

C. oblique mortise and tennon joint

D. butt joint

128. Proper amount of entrained air in concrete results in__________?
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A. better resistance to freezing and thawing

B. lesser workability

C. less resistance to freezing and thawing The correct answer is:</strong></span>

D. ="color: #003f1a;">1. better workability
129. Minimum width of landing should be_______________?
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A. one fourth the width of stairs

B. twice the width of stairs

C. half the width of stairs

D. equal to width of stairs
130. As compared to English bond, double flemish bond is_________________?
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A. stronger

B. more compact

C. none of the above

D. costly

131. Sum of tread and rise must lie between_______________?
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A. 400 to 450 mm

B. 600 to 650 mm

C. 300 to 350 mm

D. 500 to 550 mm

132. Mansard roof is a roof which slopes in________________?
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A. two directions without break in the slope on each side

B. four directions without break in the slope on each side

C. two directions with break in the slope on each side

D. four directions with break in the slope on each side
136. The term string is used for______________?
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A. the underside of a stair

B. outer projecting edge of a tread

C. a sloping member which supports the steps in a stair

D. a vertical member between two treads

141. Pitched and sloping roofs are suitable for________________?
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A. all of the above

B. plain regions

C. coastal regions

D. covering large areas

142. In a colar beam roof_______________?
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A. there is a horizontal tie at almost the middle of rafters only

B. there is a horizontal tie at the feet of rafters only

C. there is no horizontal tie beam

D. there are two horizontal ties, one at the feet and other at the middle of the rafters

145. The function of king post in a king post roof truss is_______________?
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A. to receive the ends of principal rafter

B. to support the frame work of the roof

C. to prevent the walls from spreading outward

D. to prevent the tie beam from sagging at its centre
146. The function of cleats in a roof truss is______________?
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A. all of the above

B. to support the common rafter

C. to support purlins

D. to prevent the purlins from tilting
149. The type of footing which is used to transmit heavy loads through steel columns is_______________?
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A. isolated footing

B. well foundation

C. grillage foundation

D. raft foundation