0.01 to 0.1
0.1 to 2
2 to 10
10 to 100
✅ The correct answer is option A.
Chemical Engineering MCQs
Purpose of relief valve in a reciprocating pump is to
Protect the pump against developing excessive pressure
Facilitate unidirectional flow of liquid
Reduce the discharge pressure
Control the rate of discharge
✅ The correct answer is option A.
The capacity of a centrifugal pump Can be increased by increasing the
Impeller diameter or speed
Number of pumps and joining them in series
Number of pumps and joining them in parallel
All of the above
✅ The correct answer is option D.
In parallel pipe problems, the
Head loss is the same through each pipe
Discharge is the same through all the pipes
Total head loss is equal to the sum of the head losses through each pipe
None of these
✅ The correct answer is option A.
The pipe wall thickness is minimum for a pipe of given nominal size having schedule number
160
120
80
40
✅ The correct answer is option D.
Laminar flow of a Newtonion fluid ceases to exist, when the Reynolds number exceeds
4000
2100
1500
3000
✅ The correct answer is option B.
Steady fluid flow occurs, when the derivative of flow variables satisfy the following condition.
∂/∂s = 0
∂/∂t = 0
∂/∂s = constant
∂/∂t = constant
✅ The correct answer is option B.
Nominal size of a pipe is an indication of its __________ diameter.
Inner
Outer
Approximate
None of these
✅ The correct answer is option C.
In which of the following body shapes, the pressure drag is large compared to the friction drag?
Stream line body
Two dimensional body
Bluff body
None of these
✅ The correct answer is option C.
For an unstable equilibrium of a floating body (where, M = metacentre.)
M is above G
M is below G
M & G coincide
None of these
✅ The correct answer is option B.