civil engineering MCQs – Page 10

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 Review each marked answer and report any item that may be outdated or unclear.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
181. The horizontal timber piece provided at the apex of a roof truss which supports the common rafter is called______________?
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A. eaves board

B. ridge board

C. hip rafter

D. valley rafter

182. The property of the ingredients to separate from each other while placing the concrete is called____________?
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A. bulking

B. shrinkage

C. compaction

D. segregation
183. If the group index value of subgrade is between 5 and 9, then the subgrade is treated as_____________?
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A. poor

B. good

C. fair

D. very poor

184. The rise and fall method_______________?
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A. is less.accurate than height of instrument method

B. quicker and less tedious for large number of intermediate sights

C. provides a check on the reduction of intermediate point levels

D. is not suitable for levelling with tilting levels

185. In the cross-section method of indirect contouring, the spacing of cross-sections depends upon_____________?
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A. characteristics of ground

B. scale of plan

C. contour interval

D. correct answer is ?

186. Which of the following is not the function of levelling head ?
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A. to support the main part of the instrument

B. to attach the theodolite to the tripod

C. none of the above

D. to provide a means for leveling the theodolite

187. Which of the following is not used in measuring perpendicular offsets ?
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A. line ranger

B. cross staff

C. steel tape

D. optical square

188. With increase in speed of the traffic stream, the minimum spacing of vehicles________________?
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A. decreases

B. first decreases and then increases after reaching a minimum value at optimum speed

C. increases

D. first increases and then decreases after reaching a maximum value at optimum speed

189. Maximum daily traffic capacity of bituminous pavements is______________?
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A. 1500 tonnes per day

B. 1000 tonnes per day

C. 500 tonnes per day

D. 2000 tonnes per day

190. Which of the following errors cannot be eliminated by taking both face observations ?
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A. error due to non-parallelism of the axis of telescope level and line of collimation

B. error due to horizontal axis not being perpendicular to the vertical axis

C. none of the above

D. index error i.e. error due to imperfect adjustment of the vertical circle vernier

191. The group index for a soil, whose liquid limit is 40 percent, plasticity index is 10 percent and percentage passing 75 micron IS sieve is 35, is______________?
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A. 7

B. 3

C. 0

D. 5

192. According to IS : 456- 1978, minimum slenderness ratio for a short column is_______________?
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A. between 18 and 24

B. more than 24

C. less than 18

D. less than 12
193. The diagram which shows the approximate path of vehicles and pedestrians involved in accidents is known as___________________?
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A. collision diagram

B. spot maps

C. condition diagram

D. pie charts

194. Select the correct statement_______________?
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A. Two contours of different elevations do not cross each other except in case of an overhanging cliff

B. A contour is not necessarily a closed curve

C. All of the above statements are correct

D. A contour represents a ridge line if the concave side of lower value contour lies towards the higher value contour

195. The property of fresh concrete, in which the water in the mix tends to rise to the surface while placing and compacting, is called________________?
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A. segregation

B. bulking

C. bleeding

D. creep

196. The percentage of voids in cement is approximately_______________?
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A. 80%

B. 40%

C. 60%

D. 25%

197. Strength of concrete increases with________________?
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A. increase in water-cement ratio

B. decrease in size of aggregate

C. increase in fineness of cement

D. decrease in curing time

198. Closed contours, with higher value inwards, represent a_______________?
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A. none of the above

B. hillock

C. plain surface

D. depression

199. Enoscope is used to find______________?
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A. average speed

B. time-mean speed

C. space-mean speed

D. spot speed
200. A series of closely spaced contour lines represents a___________________?
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A. plane surface

B. gentle slope

C. steep slope

D. uniform slope