171. The units of viscosity are__________________?
A. metres2 per sec
B. kg sec/metre
C. newton-sec per metre2
D. newton-sec per metre
✅ The correct answer is option B.
Civil Engineering Mcqs MCQs
172. If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by_________________?
A. Chezy
B. Manning
C. Bazin
D. Kutter
✅ The correct answer is option B.
173. The coagulant widely used for sewage treatment, is_________________?
A. Alum
B. Ferric chloride
C. Ferric sulphate
D. Chlorinated copperas
✅ The correct answer is option B.
174. The flow velocity in detritus tanks is________________?
A. 0.05 m/sec
B. 0.09 m/sec
C. 1.25 m/sec
D. None of these
✅ The correct answer is option B.
175. 15 cumecs, the depth d and width are related by For drains up to___________________?
A. d = 0.2 B
B. d = 0.5 B
C. B = 0.2 d
D. B = 0.5 d
✅ The correct answer is option B.
176. The design period of sewage treatment works in normally_________________?
A. 5 – 10 years
B. 15 – 20 years
C. 30 – 40 years
D. 40 – 50 years
✅ The correct answer is option B.
177. What is another term for “acid-test ratio” ?
A. Current ratio
B. Quick ratio
C. Profit margin ratio
D. Price-earnings ratio
✅ The correct answer is option B.
178. What is a secondary book of accounts, the information of which is obtained from the journal is called ?
A. Balanced sheet
B. Ledger
C. Worksheet
D. Trial balance
✅ The correct answer is option B.
179. In sewage having fully oxidised organic matter, the nitrogen exists in the form of________________?
A. Nitrites
B. Nitrates
C. Free ammonia
D. Aluminoid nitrogen
✅ The correct answer is option B.
180. Metacentre is the point of intersection of _________________________?
A. vertical upward force through e.g. of body and center line of body
B. buoyant force and the center line of body
C. mid point between e.g. and center of buoyancy
D. all of the above
✅ The correct answer is option B.