🚧 Civil Engineering Solved MCQs with Answers

Practice 1228 approved 🚧 Civil Engineering questions with verified answers from the 🛠️ Engineering Essentials subject for Pakistan exams.

1228 solved MCQs

Rail section first designed on Indian railways, wasAnswer: double headed A scissors cross-over consists ofAnswer: four pairs of points, six acute angle crossings and two obtuse angle crossings To prevent percolation of water into formation, moorum is used as a blanket forAnswer: black cotton soil Distance between inner faces of the flanges, is keptAnswer: slightly less than the gauge distance Wooden sleepers used on the girders of bridges, are generally made ofAnswer: teak If a 0.7% upgrade meets a 0.65% downgrade at a summit and the permissible rate of change of grade per chain length is 0.10%, the length of the vertical curve, isAnswer: 14 chains Overall depth of a dog spike, isAnswer: 120.6 mm Best wood for wooden sleepers isAnswer: teak The rail section which is not used on Indian metre gauge tracks, isAnswer: 40 R Dimensions of a plate girder, are :Answer: 851 mm x 254 mm Rail joint supported on a single sleeper, is knownAnswer: supported rail joint Maximum wheel base distance provided on Indian B.G. tracks, isAnswer: 6.096 m The tread of wheels is provided an outward slope ofAnswer: 1 in 20 On a straight railway track, absolute levels at point A on two rails are 100.550 m and 100.530 m and the absolute levels at point B 100 m apart are 100.585 m and 100.515 m respectively, the value of twist of rails per metre run, isAnswer: 0.5 mm Bearing plates are used to fixAnswer: flat footed rails to the wooden sleepers A welded rail joint is generallyAnswer: suspended Safe speed (V) on a curve of radius 970 metres provided with two transition curves on Board Gauge track, isAnswer: 132 km/hour Pick up the incorrect statement from the following:Answer: None of the these. If α is switch angle and R is radius of the turnout, the length of the tongue rail, isAnswer: R tan α/2 The type of switch generally used for B.G. and M.G. tracks, isAnswer: over riding For flat bottom sleepers, maximum size of ballast, isAnswer: 50 mm Coning of wheelsAnswer: all the above. The sleepers which satisfy the requirements of an ideal sleeper, areAnswer: wooden sleepers. Arrangement made to divert the trains from one track to another, is known asAnswer: turnout At a rail joint, the ends of adjoining rails, are connected with a pair of fish plates andAnswer: 4 fish bolts A district road with a bituminous pavement has a horizontal curve of 1000 m for a design speed of 75 km ph. The super-elevation isAnswer: 1 in 40 The minimum value of camber provided for thin bituminous surface hill roads, isAnswer: 2.5% Design of horizontal and vertical alignments, super-elevation, sight distance and grades, is worst affected byAnswer: speed of the vehicle Thickness of a pavement may be reduced considerably byAnswer: combination of all the above. The total length of a valley formed by two gradients - 3% and + 2% curve between the two tangent points to provide a rate of change of centrifugal acceleration 0.6 m/sec2, for a design speed 100 km ph, isAnswer: 84.6 m