civil engineering Mcqs
151. The lintels are preferred to arches because______________?
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A. arches are difficult in construction

B. arches require strong abutments to withstand arch thrust

C. all of the above

D. arches require more headroom to span the openings like doors, windows etc.

152. The type of bond provided in brick masonry for carrying heavy loads is___________?
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A. zigzag bond

B. single flemish bond

C. double flemish bond

D. English bond
153. Spalling hammer is used for_____________?
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A. carving of stones

B. rough dressing of stones

C. driving wooden headed chisels

D. breaking small projection of stones

154. After storage, the strength of cement________________?
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A. remains same

B. may increase or decrease

C. increases

D. decreases
155. The shape of the camber, best suited for cement concrete pavements, is_______________?
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A. combination of straight and parabolic

B. parabolic

C. straight line

D. elliptical

157. The disease of dry rot in timber is caused by_____________?
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A. none of the above

B. complete submergence in water

C. lack of ventilation

D. alternate wet and dry conditions

158. Which of the following has more fire resisting characteristics ?
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A. lime stone

B. granite

C. compact sand stone

D. marble

159. Assertion A : Shishum is used for decorative woodwork. Reason R : Shishum can be polished to an excellent finish. Select your answer according to the coding system given below ?
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A. Both A and R are true and R is the correct explanation of A

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

C. A is true but R is false

D. A is false but R is true

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

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

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

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

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

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

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

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

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