FLUID MECHANICS Questions

100 TOP FLUID MECHANICS Multiple Choice Questions and Answers pdf<—– CLICK HERE 91. The length of a pipe is 1 […]

a) coincides with the centre of gravity b) coincides with the centroid of the volume of fluid displaced c) remains

a) 0 b) 1 c) 4/3 d) 2 Ans: b

a) pipe diameter b) throat diameter c) angle of diverging section d) both pipe diameter as well as throat diameter

100 TOP FLUID MECHANICS Objective Questions<—– CLICK HERE 96. The correct relationship among displacement thickness d, momentum thickness m and

a) rise until its weight equals the buoyant force b) tend to move downward and it may finally sink c)

i) kinetic energy is zero ii) kinetic energy is 1 iii) momentum is zero iv) momentum is 1 The correct

a) 5% b) 10% c) 15% d) 20% Ans: a

Fluid Mechanics Multiple Choice Questions 1. Euler’s dimensionless number relates the following A. Inertial force and gravity B. Viscous force

a) centre of gravity and centre of buoy-ancy b) centre of gravity and metacentre c) centre of buoyancy and metacentre

a) 1 b) 4/3 c) 2 d) 4 Ans: c

a) H1/2 b) H3’2 c) H5/2 d) H5’4 where H is head. Ans: c

a) when its metacentric height is zero b) when the metacentre is above the centre of gravity c) when the

a) 4/3 b) 3/2 c) 9/4 d) 27/8 Ans: c

a) Coefficient of contraction of a venturimeter is unity. b) Flow nozzle is cheaper than venturimeter but has higher energy