71. The self-cleansing velocity of water flowing through pipe lines, is___________________ ?
A. 2 metres/sec
B. 1 metre/sec
C. 0.5 metre/sec
D. 0.25 metre/sec
✅ The correct answer is option A.
Civil Engineering Mcqs MCQs
72. Traps_________________?
A. Are water seals which prevent the entry of foul gases
B. Are used to trap the rats entering sewers
C. Dissolve the foul gases
D. Create symphonic action to increase the quick disposal of sewerage
✅ The correct answer is option A.
73. Dried sewage after treatment is used as____________________?
A. Fertilizer
B. Building material
C. Chemical for lowering B.O.D.
D. Base material for paints
✅ The correct answer is option A.
74. Metacentric height is given as the distance between_______________?
A. the center of gravity of the body andthe meta center
B. the center of gravity of the body and the center of buoyancy
C. the center of gravity of the body and the center of pressure
D. center of buoyancy and metacentre
✅ The correct answer is option A.
75. If the peak discharge of a storm water drain (S.W. Drain) is expected to exceed 150 cumecs, the free board to be provided, is_________________?
A. 100 cm
B. 90 cm
C. 80 cm
D. 50 cm
✅ The correct answer is option A.
76. The sewage treatment in septic tanks is due to__________________?
A. Anaerobic decomposition
B. Aerobic decomposition
C. Parasitic decomposition
D. None of these
✅ The correct answer is option A.
77. What is an accounting term that represents an inventory account adjustment ?
A. Cost of goods sold
B. Cost accounting
C. Standard cost
D. Overhead cost
✅ The correct answer is option A.
78. The normal values of over flow rates for secondary sedimentation tanks, ranges between__________________?
A. 25,000 to 35,000 litres/sqm/day
B. 40,000 to 50,000 litres/sqm/day
C. 50,000 to 60,000 litres/sqm/day
D. 80,000 to 10,000 litres/sqm/day
✅ The correct answer is option A.
79. While designing a project by an engineer, ______________should be taken into account to protect cultural heritage?
A. All possible alternates
B. No protection
C. Minimum protection
D. No care
✅ The correct answer is option A.
80. A model of torpedo is tested in a towing tank at a velocity of 25 m/sec. The prototype is expected to attain a velocity of 5 m/sec. What model scale has been used ?
A. 1 : 5
B. 1 : 2.5
C. 1 :25
D. 1:V5″
✅ The correct answer is option A.