IndiaBIX

Chemical Engineering - Fluid Mechanics

Exercise : Fluid Mechanics - Section 13
11.
Viscosity of water is about __________ times that of air at room temperature.
15
55
155
1050
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Net positive suction head (NPSH) of a centrifugal pump must be
greater than the vapour pressure of the liquid.
less than the vapour pressure of the liquid.
equal to the vapour pressure of the liquid.
less than barometric pressure.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
Actual lift of a pump is always less than the theoretical lift and is limited by the
specific gravity & temperature of the liquid.
leakage & pressure decreasing at higher elevations.
frictional resistance through pipes, fittings & passages.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
In case of unsteady fluid flow, conditions & flow pattern change with the passage of time at a position in a flow situation. Which of the following is an example of unsteady flow?
Discharge of water by a centrifugal pump being run at a constant rpm.
Water flow in the suction and discharge pipe of a reciprocating pump.
Water discharge from a vertical vessel in which constant level is maintained.
Low velocity flow of a highly viscous liquid through a hydraulically smooth pipe.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
Nature of fluid flow during the opening of a valve in a pipeline is
laminar
unsteady
steady
uniform
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Quick links
Quantitative Aptitude
Verbal (English)
Reasoning
Programming
Interview
Placement Papers