The sewer which transports the sewage to the point of treatment, is called________________? September 7, 2025 by Admin A. House sewer B. Out-fall sewer C. Branch sewer D. Main sewer ✅ The correct answer is option B.
A pressure of 25 m of head of water is equal to________________? September 7, 2025 by Admin A. 25 kN/m2 B. 245 kN/m2 C. 2500 kN/m2 D. 2.5kN/m2 ✅ The correct answer is option B.
The depth of the center of pressure on a vertical rectangular gate 8 m wide and 6 m high, when the water surface coincides with the top of the gate, is ______________________? September 7, 2025 by Admin A. 2.4 m B. 3.0 m C. 4.0 m D.”2.5 m ✅ The correct answer is option B.
In circular sewers if depth of flow is 0.2 times the full depth, the nominal gradient,______________? September 7, 2025 by Admin A. Is only provided B. Is doubled C. Is trebled D. Is not enough ✅ The correct answer is option B.
As compared to fresh river water, sea water contains oxygen_________________? September 7, 2025 by Admin A. 10% less B. 20% less C. 10% more D. 20% more ✅ The correct answer is option B.
The flow in which the velocity vector is identical in magnitude and direction at every point, for any given instant, is known as___________________? September 7, 2025 by Admin A. one dimensional flow B. uniform flow C. steady flow D. turbulent flow ✅ The correct answer is option B.
Free surface of a liquid behaves like a sheet and tends to contract to smallest possible area due to the______________? September 7, 2025 by Admin A. force of adhesion B. force of cohesion C. force of friction D. force of diffusion ✅ The correct answer is option B.
The bulk modulus of elasticity __________________? September 7, 2025 by Admin A. has the dimensions of 1/pressure B. increases with pressure C. is large when fluid is more compressible D. is independent of pressure and viscosity ✅ The correct answer is option B.
The settling velocity of a spherical particle of diameter less than 0.1 mm as per Stock’s law, is__________________? September 7, 2025 by Admin A. Vs = 418 (Gs – Gw) d [(3T + 70)/100] B. Vs = 418 (Gs – Gw)d² [(3T + 70)/100] C. Vs = 218 (Gs – Gw)d² [(3T + 70)/100] D. Vs = 218 (Gs – Gw)d [(3T + 70)/100] ✅ The correct answer is option B.
Principle of similitude forms the basis of__________________? September 7, 2025 by Admin A. comparing two identical equipments B. designing models so that the result can be converted to prototypes C. comparing similarity between design and actual equipment D. hydraulic designs ✅ The correct answer is option B.