1000+ Hydraulics and Fluid Mechanics MCQ Questions and Answers - 2

Question: 6

Hydraulic jump is used for

(A) reducing the energy of flow

(B) reducing the velocity of flow

(C) reducing the flow rate

(D) increasing the flow rate

Question: 7

In an isothermal atmosphere

(A) pressure increases directly as the square of height

(B) pressure varies is same way as density

(C) pressure is constant all over

(D) pressure decreases linearly with elevation

Question: 8

Mercury is generally used in barometer because

(A) it does not stick to the tube walls

(B) it shines and can be easily read

(C) it has practically zero vapour pressure

(D) of higher density due to which the height of barometer will be small

Question: 9

Gradually varied flow is

(A) steady uniform flow

(B) unsteady uniform flow

(C) steady non-uniform flow

(D) unsteady non-uniform flow

Question: 10

A hot wire anemometer is used for the measurement of

(A) viscosity of liquids

(B) viscosity of gases

(C) velocity of gases

(D) pressure of gases