6680
13360
2481
97302
✅ The correct answer is option B.
Chemical Engineering MCQs
Volute type of casing is provided in a centrifugal pump to
Convert velocity head to pressure head
Convert pressure head to velocity head
Reduce the discharge fluctuation
Increase the discharge
✅ The correct answer is option D.
Kinetic theory of gases stipulates that, the
Energy is lost during molecular collisions
Molecules possess appreciable volume
Absolute temperature is a measure of the kinetic energy of molecules
None of these
✅ The correct answer is option C.
The centre of pressure is
Always below the centroid of the area
Always above the centroid of the area
A point on the line of action of the resultant force
At the centroid of the submerged area
✅ The correct answer is option C.
The atomic heat capacities of all solid elements __________ with decrease in temperature.
Increases
Decreases
Remains unchanged
Approach zero at 0°C
✅ The correct answer is option B.
For a given Reynolds number, in a hydraulically smooth pipe, further smoothening __________ the friction factor.
Brings about no further reduction of
Increases
Decreases
None of these
✅ The correct answer is option A.
The vapor pressure of water at 100°C is
100N/m²
76 cms of Hg
13.6 cms of Hg
760 mm wc
✅ The correct answer is option B.
Reynolds number for flow of water at room temperature through 2 cm dia pipe at an average velocity of 5 cm/sec is around
2000
10
100
1000
✅ The correct answer is option D.
A fluid whose apparent viscosity increases with shear rate is termed as the __________ fluid.
Newtonion
Viscous
Dilatant
Non-viscous
✅ The correct answer is option C.
The vapor pressure of the solvent decreased by 10 mm Hg, when a non-volatile solute was added to the solvent. The mole fraction of the solute in the solution is 0.2. What should be the mole fraction of the solvent, if the decrease in vapor pressure of the solvent is required to be 20 mm Hg.?
0.2
0.1
0.4
0.6
✅ The correct answer is option D.