A. Globe valve
B. Plug-cock
C. Gate valve
D. Check valve
A. V1.8
B. V-0.8
C. V
D. V-1
A. Lies above the centroid of the plane surface
B. Is independent of the specific weight of the fluid
C. Is different for different fluids
D. Is at the centroid of the plane surface
A. Mean flow velocity is about 0.5 times the maximum velocity
B. Velocity profile becomes flatter and flatter with increasing Reynolds number
C. Point of maximum instability exists at a distance of 2r/3 from the pipe wall (r = pipe radius)
D. Skin friction drag, shear stresses, random orientation of fluid particles and slope of velocity
profile at the wall are more
A. Gate valve
B. Globe valve
C. Butterfly valve
D. Check valve
A. Pseudo plastic
B. Bingham plastic
C. Dilatent
D. Newtonian
A. High suction pressure
B. Low barometric pressure
C. Low suction pressure
D. High suction velocity