civil engineering MCQs – Page 288

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 Review each marked answer and report any item that may be outdated or unclear.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
5741. Consider the following statements?
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A. ) Slip is the space of water area between two adjacent piers where ships are berthed,

B. ect the correct statements?

C. ="color: #003f1a;">(i) Fender is the cushion provided on the face of the jetty for ships to come in contact,

D. i) Pier head is a structure constructed near the tip of a break water near the harbour entrance.</strong></span>

5742. Which of the following structures are constructed parallel to shore line to develop a demarcating line between land area and water area ?
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A. sea walls, bulk heads and groynes

B. bulk heads, revetments and groynes

C. sea walls, bulk heads and revetments

D. sea walls, revetments and groynes

5743. Which of the following structures protects the shore by trapping of littoral drift?
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A. groynes

B. moles

C. sea walls

D. revetments

5744. Which of the following type of sea walls results in greatest protection of shore structures?
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A. stepped sea wall

B. vertical sea wall

C. sea wall with concave face

D. sea wall with batter

5745. If the maximum spring rise is 2 m and height of the waves expected is 4 m , then the breakwater height above the datum will be_________________?
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A. 5 m

B. 7 m

C. 2.5 m

D. 4 m

5746. Assertion A : Basin walls have to be of much grater height than dock walls. Reason R : Tidal basins are subject to fluctuations of levels due to tidal variations?
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A. ect your answer based on the coding system given below.

5747. At a given port, the fetch is 400 nautical miles, the maximum height of storm wave will be_______________?
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A. 8.169 m

B. 2.073 m

C. 6.8 m

D. 9.144 m
5748. The significant wave height is defined is the average height of the_________________?
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A. one fourth highest waves

B. one third highest waves

C. one tenth highest waves

D. one fifth highest waves

5749. Minimum width of ship clearance shall be__________________?
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A. 50 m

B. 1.5 B or 50 m

C. 1.5 B

D. B or 30 m
5750. As compared to wall type breakwater, mound type breakwater_________________?
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A. requires less material

B. requires low maintenance cost

C. results in less damage due to gradual failure

D. requires skilled labour

5751. Which of the following is a fixed type mooring accessory ?
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A. bollard

B. cables

C. anchors

D. buoys

5752. When a wave strikes a vertical breakwater in deep water, it is reflected back and on meeting another advancing wave of similar amplitude merges and rises vertically in a wall of water. This phenomenon is called_________________?
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A. Fetch

B. Clapotis

C. Surf

D. Swell

5753. As per Stevensons empirical formula, the approximate value of the height of the wave in metres is given by__________________?
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A. 1.5 VF

B. 3.4 VF

C. 0.34 VF

D. re F is the fetch in km

E. 0.5 VF

5754. In a two dimensional incompressible steady flow around an airfoil, the stream lines are 2 cm apart at a great distance from the airfoil, where the velocity is 30 m/sec. The velocity near the airfoil, where the stream lines are 1.5 cm apart, is_________________?
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A. 90 m/sec

B. 22.5 m/sec

C. 40 m/sec

D. 33 m/sec

5755. Which of the following is an incorrect statement ?
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A. Coefficient of contraction of a venturimeter is unity

B. Discharge is independent of orientation of venturimeter whether it is horizontal, vertical or inclined

C. Flow nozzle is cheaper than venturimeter but has higher energy loss

D. None of the above statement is correct.
5756. Two pipes of same length and diameters d and 2d respectively are connected in series. The diameter of an equivalent pipe of same length is________________?
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A. less than d

B. between 1.5 d and 2d

C. greater than 2d

D. between d and 1.5 d

5757. For a sphere of radius 15 cm moving with a uniform velocity of 2 m/sec through a liquid of specific gravity 0.9 and dynamic viscosity 0.8 poise, the Reynolds number will be_________________?
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A. 600

B. 337.5

C. 300

D. 675
5758. The length of a pipe is 1 km and its diameter is 20 cm. If the diameter of an equivalent pipe is 40 cm, then its length is_____________________?
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A. 32 km

B. 8 km

C. 20 km

D. 4 km

5759. Due to each end contraction, the discharge of rectangular sharp crested weir is reduced by________________?
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A. 10%

B. 15%

C. 20%

D. 5%
5760. The horizontal component of force on a curved surface is equal to the_______________?
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A. weight of liquid vertically above the curved surface

B. force on a vertical projection of the curved surface

C. force on the horizontal projection of the curved surface

D. product of pressure intensity at its centroid and area