civil engineering MCQs – Page 9

Practise multiple-choice questions from civil engineering for competitive examinations and subject revision. Review each marked answer and report any item that may be outdated or unclear.

civil engineering Mcqs
161. The moisture content in a well seasoned timber is_______________?
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A. 10% to 12%

B. 100%

C. 4% to 6%

D. 15% to 20%

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

B. to render the concrete more water tight

C. to increase the initial setting time of cement paste in concrete

D. to improve the workability of concrete mix

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

B. 300 to 350 mm

C. 500 to 550 mm

D. 600 to 650 mm

164. Couple close roof is suitable for maximum span of______________?
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A. 3.5 m

B. 2.5 m

C. 5.5 m

D. 4.5 m
165. Sapwood consists of______________?
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A. thin layers below the bark

B. thin fibre which extends from the pith outwards and holds the annular rings together

C. portion of timber between heartwood and cambium layer

D. innermost annular rings around the pith

166. Pug mill is used for_______________?
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A. burning of bricks

B. moulding of clay

C. preparation of clay

D. drying of bricks

167. If the stopping distance is 60 meters, then the minimum stopping sight distance for two lane, two way traffic is_________________?
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A. 120m

B. 30m

C. 180m

D. 60m
168. Depth or height of the arch is the________________?
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A. perpendicular distance between springing line and extrados

B. none of the above

C. vertical distance between springing line and intrados

D. perpendicular distance between intra-dos and extrados
169. The term string is used for______________?
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A. a vertical member between two treads

B. outer projecting edge of a tread

C. the underside of a stair

D. a sloping member which supports the steps in a stair
170. The plywood______________?
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A. can be spilt in the plane of the panel

B. has good strength along the panel only

C. has greater impact resistance to blows than ordinary wood

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

171. According to IS specifications, the compressive strength of ordinary portland cement after three days should not be less than________________?
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A. 16 MPa

B. 7 MPa

C. 21 MPa

D. 11.5 MPa

172. Which of the following stresses is used for identifying the quality of structural steel ?
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A. ultimate stress

B. yield stress

C. none of the above

D. proof stress

173. Higher pitch of the roof (1) results in stronger roof (2) results in weaker roof (3) requires more covering material (4) requires less covering material The correct answer is___________?
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A. (1) and (4)

B. (2) and (4)

C. (1) and (3)

D. (2) and (3)

174. Plywood has the advantage of_____________?
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A. same tensile strength in all directions

B. greater tensile strength in shorter direction

C. greater tensile strength in longer direction

D. none of the above

175. The effect of grade on safe overtaking sight distance is_______________?
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A. to increase it on descending grades and to decrease it on ascending grades

B. to decrease it on descending grades and to increase it on ascending grades

C. to increase it on both descending and ascending grades

D. to decrease it on both descending and ascending grades

176. The sequence of four stages of survey in a highway alignment is______________?
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A. preliminary survey, map study, reconnaissance and detailed survey

B. map study, reconnaissance, preliminary survey and detailed survey

C. map study, preliminary survey, reconnaissance and detailed survey

D. reconnaissance, map study, preliminary survey and detailed survey

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

B. 70.6 mm

C. 50 mm

D. 150 mm

178. The function of king post in a king post roof truss is_______________?
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A. to prevent the tie beam from sagging at its centre

B. to support the frame work of the roof

C. to prevent the walls from spreading outward

D. to receive the ends of principal rafter

179. The ruling design speed on a National Highway in plain terrain as per IRC recommendations is_____________?
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A. 60 kmph

B. 100 kmph

C. 80 kmph

D. 120 kmph

180. 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. drain the soil

B. increase the depth of foundation

C. replace the poor soil

D. compact the soil