A. 200 ppm
B. 225 ppm
C. 250 ppm
D. None of these
✅ The correct answer is option C.
Civil Engineering Mcqs MCQs
272. The true value of interest rate computed by equations for compound interest for a 1 year period is known as __________________?
A. Expected return
B. Nominal interest
C. Effective interest
D. Economic return
✅ The correct answer is option C.
273. A piece of metal of specific gravity 13.6 is placed in mercury of specific gravity 13.6, what fraction of it volume is under mercury ?
A. the metal piece will simply float over the mercury
B. the metal piece will be immersed in mercury by half
C. whole of the metal piece will be immersed with its top surface just at mercury level
D. metal piece will sink to the bottom
✅ The correct answer is option C.
274. Froude number is significant in____________________?
A. supersonics, as with projectile and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity forces, and wave making effect, as with ship’s hulls
D. all of the above
✅ The correct answer is option C.
275. The resultant upward pressure of the fluid on an immersed body due to its tendency to uplift the sub-merged body is called___________________?
A. upthrust
B. reaction
C. buoyancy
D. metacentre
✅ The correct answer is option C.
276. The use of coarse screens for the disposal of sewage, may be dispensed with by______________?
A. Comminutor
B. Shredder
C. Both A. and B.
D. Neither A. nor B.
✅ The correct answer is option C.
277. The drop man holes are generally provided in sewers for____________________?
A. Industrial areas
B. Large town ships
C. Hilly town ships
D. Cities in plains
✅ The correct answer is option C.
278. If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be_________________?
A. higher than the surface of liquid
B. the same as the surface of liquid
C. lower than the surface of liquid
D. unpredictable
✅ The correct answer is option C.
279. The quantity of liquid waste which flows in sewers during the period of rainfall, is known__________________?
A. Sanitary sewage
B. Industrial waste
C. Storm sewage
D. None of these
✅ The correct answer is option C.
280. Capitalized cost of any structure or property is computed by which formula ?
A. First cost + interest of first cost
B. Annual cost – interest of first cost
C. First cost + cost of perpetual maintenance
D. First cost + salvage value
✅ The correct answer is option C.