Home > Civil Engineering > Fluid Machines

Fluid Machines - Interview Questions and Answers

Prepare for your technical interview with these Fluid Machines questions.

Ready to test your skills?

Take a timed mock test specifically for Fluid Machines.

Start Mock Test
61. For laminar flow in a pipe of circular cross-section, the Darcy's friction factor f is
A. directly proportional to Reynolds number and independent of pipe wall roughness
B. directly proportional to pipe wall roughness and independent of Reynolds number
C. inversely proportional to Reynolds number and indpendent of pipe wall roughness
D. inversely proportional to Reynolds number and directly proportional to pipe wall roughness
Explanation:
62. In which of the following the friction drag is generally larger than pressure drag?
A. a circular disc or plate held normal to flow
B. a sphere
C. a cylinder
D. an airfoil
Explanation:
63. Stanton diagram is a
A. log-log plot of friction factor against Reynolds number
B. log-log plot of relative roughness against Reynolds number
C. semi-log plot of friction factor against Reynolds number
D. semi-log plot of friction factor against relative roughness
Explanation:
64. If a sphere of diameter 1 cm falls in castor oil of kinematic viscosity 10 stokes, with a terminal velocity of 1.5 cm/sec, the coefficient of drag on the sphere is
A. less than 1
B. between 1 and 100
C. 160
D. 200
Explanation:
65. Which of the following has highest coefficient of discharge ?
A. sharp edged orifice
B. venturimeter
C. Borda's mouthpiece running full
D. CipoUetti weir
Explanation:
« Prev12345678910111213141516171819Next »