Q.1.
Which one of the following setup would have the following Temperature Profile?
- a) Shell and tube with hot fluid in shell and packed bed in tube
- b) Shell and tube with cold fluid in shell and packed bed in tube
- c) Shell and tube with hot fluid in tube and packed bed in shell
- d) Shell and tube with cold fluid in tube and packed bed in shell
Q.2.
The particles are usually _______ packed near the wall of the tube.
- a) Tightly
- b) Loosely
- c) Very tightly
- d) Negligibly
Q.3.
What is the heat transfer area for the following setup?
- a) 0.357m2
- b) 0.4m2
- c) 0.377m2
- d) 0.3m2
Q.4.
When is the following equipment used?
- a) Exothermic Reaction
- b) Endothermic Reaction
- c) Heating operation
- d) Cooling operation
Q.5.
The presence of particles makes the inside heat transfer coefficient higher than empty tube because the superficial velocity is _______ the actual velocity.
- a) Little higher than
- b) Very higher than
- c) Very less than
- d) Little less than
Q.6.
The heat transfer coefficient ________ with increasing flow rate.
- a) Increases
- b) Decreases
- c) Remains the same
- d) Drops drastically
Q.7.
In the expression given below, what is the expression Di? This given ratio defines voidage which is controlled to obtain maximum heat transfer coefficient.
- a) Internal diameter of Pellets
- b) Internal diameter of Tube
- c) Internal diameter of Bed
- d) Internal diameter of Pellets
Q.8.
The value of dp/di in the range _______ gives maximum heat transfer coefficient.
- a) 0.15-0.2
- b) 2-3
- c) 0.6-0.9
- d) 0.001-0.002
Q.9.
For very low dp/di, the temperature pattern is similar to that of complete mixing and turbulent flow.
- a) True
- b) False
Q.10.
For very high dp/di, the mixing is very large and the heat transfer coefficient is ______
- a) Low
- b) Very low
- c) High
- d) Very high
Q.11.
Which one is the correct temperature profile for high dp/di Packed bed setup?
- a) Laminar temperature profile
- b) Turbulent Temperature profile
- c) Laminar near the walls and turbulent at the centre
- d) Turbulent near the walls and laminar at the centre
Q.12.
Which one is the correct temperature profile for very low dp/di packed bed setup?
- a) Laminar temperature profile
- b) Turbulent Temperature profile
- c) Laminar near the walls and turbulent at the centre
- d) Turbulent near the walls and laminar at the centre
Q.13.
The renowned equation used to calculate the pressure drop in a non-ideal packed bed is known as______________
- a) Sieder Tate Equation
- b) Kozeny Carman Equation
- c) Ergun Equation
- d) Arrhenius Equation