This set of Bioseparation Engineering Multiple Choice Questions & Answers (MCQs) focuses on “Filtration Equipment”.
1. Which equipment used in the process of filtration has series of horizontally arranged vertical filter element?
a) Filter press
b) Funnel filter
c) Leaf pressure filter
d) Vacuum leaf filter
View Answer
Explanation: The equipment used in the process of filtration having of a series of horizontally arranged vertical filter elements is a filter press and each element consists of a frame in which the cake is accumulated and is sandwiched between the filter medium on both the sides.
2. Each filter medium in the filter press is supported on a ______________
a) disc
b) ball
c) plate
d) press
View Answer
Explanation: Each filter medium in the filter press is supported on a plate that has grooves in order to allow an easy filtrate collection.
3. What does term “press” refer to in the filter press of filtration process?
a) Internal structure
b) External structure
c) Process
d) Frames
View Answer
Explanation: The term “press” refer to an external structure in the filter press of filtration process, the structure provides the force necessary to seal the filter elements with each other and also supports the frame assembly as well as plate.
4. The faces of each filter plate in the filter press are covered with ______________
a) feed
b) filtrate
c) frames
d) filter medium
View Answer
Explanation: The faces of each filter plate in the filter press are covered with filter medium and the filter medium along with the frames forms a chain of chambers.
5. Feed is introduced into the chain of chambers through _____________
a) temperature
b) pressure
c) filter cake
d) filter press
View Answer
Explanation: The pressure helps the feed to enter the series of chamber as external pressure created in the filter press is necessary for the system to work in the proper direction and finally leads to filtration of the filtrate and raffinate.
6. What is the role of filter medium in the process of filtration?
a) Builds in the solid
b) Breaks the solid
c) Retains suspended solid
d) Retains liquid
View Answer
Explanation: Filter medium helps to retain the suspended solid so that the liquid can pass through the bed and gets filtered and the remaining solid will be separated separately.
7. What is the disadvantage of using plate and filter press?
a) High cost labor
b) High down time
c) High cost labor, high down time
d) High throughput
View Answer
Explanation: The high throughput is the advantage of using plate and filter press while high cost labor and high down time are the disadvantage of using plate and filter press. The other disadvantages are capacity limitation and batch-wise operation.
8. Plate and frame filter is used for ____________
a) cake filtration
b) cake clarification
c) cake washing
d) cake clarification and cake filtration
View Answer
Explanation: The plate and frame filter is used for extended process of clarification which includes the process of filtration of cake as well as clarification of the cake used in the filtration process.
9. A rotary vacuum filter is a ____________
a) continuous filtration device
b) non-continuous filtration device
c) batch filtration device
d) fed-batch filtration device
View Answer
Explanation: The rotary vacuum filter is a continuous filtration device and is used to separate the solids by a porous filter cloth or filtration media that are wrapped around the structure which is drum-like and has a perforated curved structure.
10. The filtrate flows through the filter media an enters ___________
a) frame
b) plate
c) drum
d) vacuum
View Answer
Explanation: The filtrate enters the drum and the accumulation of cake takes place on outside of the drum. The layer of cake builds up as the drum rotates and moves through the feed.
11. The rotary vacuum drum is mainly used for _________
a) cake filtration, cake washing
b) cake filtration, cake washing, de-watering
c) cake washing
d) de-watering, cake washing
View Answer
Explanation: The rotary vacuum drum is used for de-watering in the pharmaceuticals, ceramic as well as metallurgical industries; it is also used in filtration of the cake and washing of the cake. It is also used in treatment of municipal wastewater.
12. The disadvantages of rotary drum filter are ______________
a) continuous operation
b) low driving force
c) cake drying
d) complicated design and low driving force
View Answer
Explanation: The continuous operation and cake drying are the advantages of the rotary drum filter while low driving forces i.e. caused due to the vacuum used in the process and the design of the setup is complicated due to the moving seals as well as parts.
13. The semi-dry cake obtained by the rotary drum filter is removed by ___________
a) wire
b) cloth
c) trough
d) seal
View Answer
Explanation: The semi-dry cake can be removed from the filter medium using a curing wire and it can also be removed using a fixed knife.
Sanfoundry Global Education & Learning Series – Bioseparation Engineering.
To practice all areas of Bioseparation Engineering, here is complete set of 1000+ Multiple Choice Questions and Answers.
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