241. The maximum spacing of manholes specified by Indian standard in sewers upto 0.3 m diameter is____________________? A. 20 m B. 30 m C. 45 m D. 75 m ✅ The correct answer is option C.
242. To avoid an interruption in the flow of a syphon, an air vessel is provided______________? A. at the inlet B. at the outlet C. at the summit D. ay nay point between inlet and outlet ✅ The correct answer is option C.
243. A piece of metal of specific gravity 7 floats in mercury of specific gravity 13.6. What fraction of its volume is under mercury ? A. 0.5 B. 0.4 C. 0.515 D. 0.5 ✅ The correct answer is option C.
244. For sewers, inverted siphon is provided for___________________? A. One pipe B. Two pipes C. Three pipes D. Four pipes ✅ The correct answer is option C.
245. The deliberate lowering of the price of a nation’s currency in terms of the accepted standard (Gold, American dollar or the British pound) is known as ____________________? A. Currency appreciation B. Currency depreciation C. Currency devaluation D. Currency float ✅ The correct answer is option C.
246. A fluid in equilibrium can’t sustain_________________? A. tensile stress B. compressive stress C. shear stress D. bending stress ✅ The correct answer is option C.
247. In trickling filter, B.O.D. is reduced to___________________? A. 30 to 40% B. 40 to 60% C. 60 to 80% D. 80 to 90% ✅ The correct answer is option C.
248. Center of pressure on an inclined plane is______________________? A. at the centroid B. above the centroid C. below the centroid D. at metacentre ✅ The correct answer is option C.
249. Setting out the alignments of sewers may start from__________________? A. City B. Out-fall C. Tail end D. Any point ✅ The correct answer is option C.
250. Aggregation of individuals formed for the purpose of conducting a business and recognized by law as a fictitious person is called ________________________? A. Partnership B. Investors C. Corporation D. Stockholders ✅ The correct answer is option C.