civil engineering MCQs – Page 92

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 Review each marked answer and report any item that may be outdated or unclear.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

1821. Which one of the following is a component of a shield for tunnelling ?
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A. trench jack

B. liner plate

C. cutting edge

D. stiffener

1822. In Intrumental landing system, the middle markers are located___________________?
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A. about 1 km. ahead of the runway threshold

B. along the extended centre line of runway end

C. about 7 km. ahead of the runway threshold

D. at the runway threshold

1823. As per ICAO recommendation, the rate of change of longitudinal gradient per 30 m length of vertical curve for A and B type of airports is limited to a maximum of__________________?
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A. 0.20%

B. 0.40%

C. 0.1 %

D. 0.30%

1824. In moment distribution method, the sum of distribution factors of all the members meeting at any joint is always__________________?
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A. greater than 1

B. 1

C. less than 1

D. zero

1825. The correct sequence of these operations in tunnel construction is______________?
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A. Drilling

B. Mucking

C. Placing steel

D. Blasting

E. sider the following operations :

F. Placing concrete</strong>

1826. Standard size of wooden sleeper for Broad Gauge track is____________________?
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A. 250x26x12 cm

B. 225x23x13 cm

C. 275x25x13cm

D. 180x20x11.5 cm

1827. What is the correct sequence of the following events in rock tunnelling?
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A. mucking

B. marking tunnel profile

C. loading explosives and blasting

D. removing foul gas

E. setting up and drilling

F. es ?

1828. The degree of static indeterminacy of a rigid-jointed space frame is_________________?
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A. m + r 3j

B. 3m + r 3j

C. re m, r and j have their usual meanings

D. 6m + r 6j

E. m + r 2j

1829. In the time-cost optimisation, using CPM method for network analysis, the crashing of the activities along the critical path is done starting with the activity having________________?
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A. shortest duration

B. highest cost slope

C. longest duration

D. least cost slope

1830. When a uniformly distributed load, longer than the span of the girder, moves from left to right, then the maximum bending moment at mid section of span occurs when the uniformly distributed load occupies_______________?
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A. more than the left half span

B. whole span

C. less than the left half span

D. whole of left half span

1831. The principle of virtual work can be applied to elastic system by considering the virtual work of_________________?
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A. external forces only

B. internal as well as external forces

C. internal forces only

D. none of the above

1832. Staggered joints are generally provided__________________?
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A. when two different rail sections are required to be joined

B. none of the above

C. on curves

D. on straight track

1833. Lead of crossing is the distance from the__________________?
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A. heel of the switch to the toe of the switch

B. toe of the switch to the theoretical nose of crossing

C. toe of the switch to the actual nose of crossing

D. heel of the switch to the theoretical nose of the crossing

1834. The width of foot for 90 R rail section is__________________?
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A. 146.0 mm

B. 100 mm

C. 136.5 mm

D. 122.2 mm

1835. For a two-hinged arch, if one of the supports settles down vertically, then the horizontal thrust______________?
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A. becomes zero

B. remains unchanged

C. is increased

D. is decreased

1836. As per ICAO, for airports serving big aircrafts, the crosswind component should not exceed_________________?
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A. 25 kmph

B. 35 kmph

C. 15 kmph

D. 45 kmph

1837. The total length of a runway is 1000 m. The elevation at distance 0,200 m, 400 m, 600 m, 800 m and 1000 m are 100.0 m, 99.2 m, 101.0 m, 101.8 m, 101.4 m and 101.0 m respectively. The effective gradient of runway will be______________?
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A. 0.43%

B. 0.26%

C. 0.65%

D. 0.10%

1838. A single rolling load of 8 kN rolls along a girder of 15 m span. The absolute maximum bending moment will be________________?
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A. 60 kN.m

B. 30 kN.m

C. 15 kN.m

D. 8 kN.m

1839. Drift method of tunnelling is used to construct tunnels in__________________?
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A. self supporting grounds

B. soft grounds

C. rock

D. broken grounds

1840. A father notes that when his teenage daughter uses the telephone, she takes not less than 6 minutes for a call and som? times as much as an hour. Fifteen minutes call are more frequent than calls of any other duration. If these phone calls were an activity in PERT project, then phone calls expected duration will be_______________?
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A. 20.143 minutes

B. 27 minutes

C. 15 minutes

D. 21 minutes

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