Is a positive displacement pump
Is a centrifugal pump
Is a non-positive displacement pump
Can be started with delivery valve closed
✅ The correct answer is option A.
Chemical Engineering MCQs
Pressure difference between two points in vessels, pipelines or in two different pipelines can be measured by a differential manometer. The pressure difference measured as the mm of water coloumn in case of mercury-water, differential manometer is equal to (where, H = difference in height of mercury column in mm).
H
12.6 H
13.6 H
14.6 H
✅ The correct answer is option B.
When larger particles e.g., grains are subjected to fluidisation, the corresponding bed produced is termed as the __________ bed.
Spouted
Sluggish
Boiling
Teeter
✅ The correct answer is option A.
Which of the following is used for pumping crude oil from oil well?
Single stage centrifugal pump
Gear pump
Screw pump
Duplex/triplex reciprocating pump
✅ The correct answer is option D.
Which of the following two quantities when same, makes one pipe system equivalent to another pipe system?
Head & discharge
Length & discharge
Length & diameter
Friction factor & diameter
✅ The correct answer is option A.
Which of the following produces maximum pressure difference for transportation of gases?
Vaccum pumps
Blowers
Fans
Compressors
✅ The correct answer is option D.
Cp/Cv is termed as
Adiabatic constant
Mach number
Weber number
Prandtl number
✅ The correct answer is option A.
The __________ pressure is measured by a static tube.
Dynamic
Static
Total
None of these
✅ The correct answer is option B.
Small pressure differences in liquids is measured using a/an
U-tube manometer
Inclined tube manometer
Pitot tube
None of these
✅ The correct answer is option B.
A centrifugal pump designed for handling water (μ = 1 cp) will deliver __________ when pumping a thicker oil (μ = 30 cp).
Less head & capacity
More head
More capacity
Less head & more capacity
✅ The correct answer is option A.