FLUIDS

Question 1

Water kinematic viscosity
(cP, Poise, Pas,lb/fts)

Answer 1

1 cP
0.01 Poise
0.001 Pas
6.7310^-4 lb/ft*s

Question 2

Water heat capacity
J/gK, BTU/lbmR, cal/g*K

Answer 2

4.184 J/gK,
1 BTU/lbmR,
1 cal/g*K

Question 3

Water density
lbm/ft³, g/cm³, kg/m³, g/mL

Answer 3

62.4 lbm/ft³,
1 g/cm³
1000 kg/m³,
1g/mL

Question 4

1 hp to lbf*ft/s and W

Answer 4

1 hp = 550 lbf*ft/s = 745.1 W

Question 5

BTU to lbf*ft

Answer 5

1 BTU = 778 lbf*ft

Question 6

miles to ft

Answer 6

1 mi = 5280 ft

Question 7

ft³ to gal
and bbl to gal

Answer 7

1 ft³ = 7.481 gallons
1 bbl (barrel of crude oil) = 42 gal

Question 8

The dimensionless quantity regarded as the ratio of the shear stress to the kinetic energy.

Answer 8

Fanning friction number

Question 9

Pitot tube measures

Answer 9

local velocity

Question 10

A popular type of heat exchanger for cooling large quantities of fluid is the

Answer 10

shell and tube heat exchanger

Question 11

Vena-contracta formed during flow of a liquid through an orificemeter has
minimum liquid cross-section.

minimum liquid cross-section.
more diameter compared to orifice diameter.
minimum velocity of fluid stream.
none of these.

Answer 11

minimum liquid cross-section.

Question 12

As per Newton’s law of viscosity, the shear stress for a given rate of angular deformation of fluid is proportional to(where, μ = fluid viscosity)

Answer 12

μ

Question 13

Horsepower increase of a centrifugal gas compressor without altering the volumetric flow rate will __________ the gas discharge pressure.

increase
decrease
not change
exponentially decrease

Answer 13

increase

Question 14

In continuous fluidisation

solids are completely entrained.
the pressure drop is less than that for batch fluidisation.
there is no entrainment of solids.
velocity of the fluid is very small.

Answer 14

solids are completely entrained.