791. Maximum theoretical suction lift for water at 15°C by a centrifugal pump is 34 ft. The same for water at 90°C will be _____________________ ft?
A. 40
B. 34
C. 8
D. 37

792. The terminal velocity of a particle moving through a fluid varies as dp n. The value of n is equal to _______________ in Stoke’s law regime?
A. 1
B. 0.5
C. 2

D. 1.5

793. Which is the correct relationship for a centrifugal pump? (Where, D = Impeller diameter, inches H = Head developed, ft of liquid pumped N = Speed of pump, rpm) ?
A. D = 1840 H0.5/N
B. D = 1840 N/H0.5
C. H = 1840 D0.5/N
D. D = 1840 H/N

794. Pump used for the transportation of molten sodium in a fast breader reactor is a/an __________ pump?
A. Reciprocating
B. Plunger
C. Electromagnetic
D. Gear

795. Medium viscosity lubricating oil can be most ideally pumped by a ______________ pump?
A. Vane
B. Piston
C. Centrifugal
D. Plunger

796. Remote control valve is a _______________ valve?
A. Gate
B. Butterfly
C. Needle
D. Globe

797. Most of the centrifugal pumps used in chemical plants are usually ____________________ driven?
A. Steam
B. Diesel engine
C. Electric motor
D. Gas turbine

798. The uniformity of a gas fluidised bed depends upon the _______________ of the solid particles?
A. Size
B. Surface properties
C. Both A. and B.
D. Neither A. nor B.

799. Permanent loss in a Venturimeter is about ___________ percent of the pressure drop in the upstream cone?
A. 1
B. 10
C. 40
D. 70

800. The velocity profile exhibited by laminar flow of Newtonian fluids is such that the velocity distribution w.r.t. radius of the circular pipe is a/an ______________ with the apex at the centre line of the pipe?
A. Hyperbola
B. Parabola
C. Semi-circle
D. Semi-ellipse

NOTE
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