1000+ Hydraulics and Fluid Mechanics Multiple Choice Questions - 2

Question: 6

The losses in an open channel vary

(A) inversely with a gradient

(B) as the cube of velocity

(C) as the square of velocity

(D) as the velocity

Question: 7

An ideal fluid is

(A) one which satisfies continuity equation

(B) one which obeys Newton’s law of viscosity

(C) frictionless and incompressible

(D) similar to a perfect gas

Question: 8

Cavitation is caused by

(A) low pressure

(B) high pressure

(C) low barometric pressure

(D) high velocity

Question: 9

Which of the following forces does not act in case of fluids?

(A) elastic force

(B) vibratory force

(C) tensile force

(D) centrifugal force

Question: 10

Kinematic similarity between model and prototype means

(A) the similarity of discharge

(B) the similarity of motion

(C) the similarity of forces

(D) the similarity of shape