Fluid Mechanics MCQs

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

A. sharp edged orifice

B. venturimeter

C. Borda’s mouthpiece running full

D. CipoUetti weir

A. laminar flow

B. transition flow

C. turbulent flow

D. critical flow

A. at the centroid of the submerged area

B. always above the centroid of the area

C. always below the centroid of the area

D. none of the above

A. zero at the pipe wall

B. maximum at the pipe wall

C. independent of shear stress

D. none of the above

A. pipe diameter

B. throat diameter

C. angle of diverging section

D. both pipe diameter as well as throat diameter

A. 5%

B. 10%

C. 15%

D. 20%

A. at the extreme rear of body

B. at the extreme front of body

C. midway between rear and front of body

D. any where between rear and front of body depending upon Reynolds number

A. 1/3

B. 1/4

C. 1/2

D. 2/3

A. directly proportional to its radial distance from axis of rotation

B. inversely proportional to its radial distance from the axis of rotation

C. inversely proportional to the square of its radial distance from the axis of rotation

D. directly proportional to the square of its radial distance from the axis of rotation