The screens are fixed___________________? September 7, 2025 by Admin A. Perpendicular to the direction of flow B. Parallel to the direction of flow C. At an angle 30° to 60° to the direction of flow D. None of these ✅ The correct answer is option C.
If the diameter of sewer is 225 mm, the gradient required for generating self cleansing velocity, is___________________? September 7, 2025 by Admin A. 1 in 60 B. 1 in 100 C. 1 in 120 D. None of these ✅ The correct answer is option C.
The resultant of all normal pressures acts_________________? September 7, 2025 by Admin A. at e.g. of body B. at center of pressure C. vertically upwards D. at metacentre ✅ The correct answer is option C.
A streamline is defined as the line ________________? September 7, 2025 by Admin A. parallel to central axis flow B. parallel to outer surface of pipe C. of equal yelocity in a flow D. along which the pressure drop is uniform ✅ The correct answer is option C.
The angle of contact in case of a liquid depends upon____________________? September 7, 2025 by Admin A. the nature of the liquid and the solid B. the material which exists above the free surface of the liquid C. both of die above D. any one of the above ✅ The correct answer is option C.
Fluid is a substance which offers no resistance to change of_________________? September 7, 2025 by Admin A. pressure B. flow C. shape D. volume ✅ The correct answer is option C.
What refers to the saving which takes place because goods are not available for consumption rather than consumer really want to save ? September 7, 2025 by Admin A. Compulsory saving B. Consumer saving C. Forced saving D. All of the above ✅ The correct answer is option C.
Facultative bacteria survive in_____________________? September 7, 2025 by Admin A. The presence of oxygen B. The absence of oxygen C. Both cases A. and B. D. Neither A. nor B. ✅ The correct answer is option C.
A rainfall may be classified as acidic if its pH value is less or equal to________________? September 7, 2025 by Admin A. 6 B. 7 C. 5 D. 6.5 ✅ The correct answer is option C.
The center of gravity of the volume of the liquid displaced by an immersed body is called________________? September 7, 2025 by Admin A. meta-center B. center of pressure C. center of buoyancy D. center of gravity ✅ The correct answer is option C.