A. 0.223 R
B. 0.423 R
C. 0.577 R
D. 0.707 R
where R is radius of pipe
A. a circular disc of plate held normal to flow
B. a sphere
C. a cylinder
D. a streamlined body
A. constant
B. dependent only on Reynolds number
C. a function of Reynolds number and relative roughness
D. dependent on relative roughness only
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. 1/2
B. 2/3
C. 3/2
D. 2
A. laminar flow
B. transition flow
C. turbulent flow
D. not predictable from the given data
A. is constant over the cross-section
B. varies linearly from zero at walls to maximum at centre
C. varies parabolically with maximum at the centre
D. none of the above
The velocity distribution for laminar flow through a circular tube__________________? Read More »
Fluid Mechanics A. laminar flow
B. transition flow
C. turbulent flow
D. critical flow
The losses are more in_________________? Read More »
Fluid Mechanics A. 0
B. r/2
C. r
D. 2r
The maximum thickness of boundary layer in a pipe of radius r is____________________? Read More »
Fluid Mechanics A. head loss and discharge are same in two systems
B. length of pipe and discharge are same in two systems
C. friction factor and length are same in two systems
D. length and diameter are same in two systems
Two pipe systems are said to be equivalent when_________________? Read More »
Fluid Mechanics