121. If D.O. concentration falls down to zero in any natural drainage, it indicates the zone of__________________?
A. Degradation
B. Active decomposition
C. Recovery
D. Cleaner water
✅ The correct answer is option B.
Civil Engineering Mcqs MCQs
122. Quality control is aimed at__________?
A. Maintaining the desired quality
B. Exceeding the desired quality
C. Continuously improving the quality
D. Following the quality
✅ The correct answer is option A.
123. The most efficient cross-section of sewers in a combined sewerage system is________________?
A. Parabolic
B. Circular
C. Rectangular
D. New egged
✅ The correct answer is option B.
124. In sewers the effect of scouring is more on__________________?
A. Top side
B. Bottom side
C. Horizontal side
D. All sides
✅ The correct answer is option B.
125. Ratio of inertia force to elastic force is known as _____________________?
A. Mach number
B. Froude number
C. Reynold’s number
D. Weber’s number
✅ The correct answer is option A.
126. What is an index of short-term paying ability ?
A. Price-earnings ratio
B. Current ratio
C. Profit margin ratio
D. Gross margin
✅ The correct answer is option B.
127. The profit derived from a project or business enterprise without consideration of obligations to financial contributors and claims of others based on profit is known as _____________________?
A. Yield
B. Economic return
C. Earning value
D. Gain
✅ The correct answer is option B.
128. Primary treatment of sewage consists of removal of__________________?
A. Large suspended organic solids
B. Oil and grease
C. Sand and girt
D. Floating materials
✅ The correct answer is option A.
129. A liquid would wet the solid, if adhesion forces as compared to cohesion forces are_________________?
A. less
B. more
C. equal
D. less at low temperature and more at high temperature
✅ The correct answer is option B.
130. The resultant upward pressure of the fluid on an immersed body is called_________________?
A. upthrust
B. buoyancy
C. center of pressure
D. all the above are correct
✅ The correct answer is option B.