A. Very low speeds
B. Smaller discharge
C. Higher capital &maintenance cost
D. High vibrations
A. Provided in the discharge line
B. Generally a globe valve
C. Provided to prevent liquid from backing up through the pump when the pump is turned off or
accidently stops running
D. All A., B. and C.
Check in a centrifugal pump is________________? Read More »
Fluid Mechanics for Chemical A. 1/D
B. 1/D2
C. 1/D5
D. D2
A. 100
B. 200
C. 320
D. 160
A. Velocity and relative roughness
B. Head loss and velocity
C. Reynold number, relative roughness and head loss
D. Reynolds number and friction factor
A. Venturimeter
B. Orificemeter
C. Rotameter
D. Pitot tube
The pressure head of a flow meter remains constant for_________________? Read More »
Fluid Mechanics for Chemical A. Δp/ρ = 4f (L/D) (V2/2gc)
B. Δp = 32 (μLV/gc. D2)
C. Δp/L = 150 [(1 – ε)/ε3]. (μ.V0
2/g2cD)
D. Δp/L = 1.75 [(1 – ε)/ε3]. (ρV0
2/gcDp)
Pick out the Hagen-Poiseuille‟s equation ? Read More »
Fluid Mechanics for Chemical A. 20 m/sec
B. 10 m/sec
C. 5 √2 m/sec
D. 5 m/sec
A. Cd = Cc/Cv
B. Cd = Cc.Cv
C. Cd = Cv/ Cc
D. None of these
A. Newtonian
B. Viscous
C. Dilatant
D. Non-viscous
