Discussion
Home ‣ Chemical Engineering ‣ Mechanical Operations See What Others Are Saying!
- Question
Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is
Options- A. added to the feed slurry.
- B. precoated on the filter medium prior to filtration.
- C. separated from the cake by dissolving solids or by burning it off.
- D. all 'a', 'b'&'c'.
- Correct Answer
- all 'a', 'b'&'c'.
- 1. Percentage of heavy water in ordinary water is around
Options- A. 0.015
- B. 7.54
- C. 0.71
- D. 32.97 Discuss
- 2. Density of low density polythene is about __________ gm/c.c.
Options- A. 0.38
- B. 0.56
- C. 0.81
- D. 0.91 Discuss
- 3. Rain coats are made of
Options- A. neoprene
- B. PVC
- C. polyurathane
- D. SBR Discuss
- 4. CaCO3 contains __________ percent of Ca by weight.
Options- A. 40
- B. 48
- C. 96
- D. 12 Discuss
- 5. Pick out the material having minimum Rittinger's number.
Options- A. Calcite
- B. Pyrite
- C. Quartz
- D. Galena Discuss
- 6. Average molecular weight of air is about
Options- A. 21
- B. 29
- C. 23
- D. 79 Discuss
- 7. Both tritium and deuterium have the same number of
Options- A. neutrons
- B. electrons
- C. protons
- D. nucleons Discuss
- 8. °API gravity of water at N.T.P. is about
Options- A. 0
- B. 1
- C. 10
- D. 100 Discuss
- 9. Carbon Content by weight in air dried wood may be about __________ percent.
Options- A. 10
- B. 25
- C. 50
- D. 80 Discuss
- 10. Energy produced in the nuclear fission is of the order of __________ MeV.
Options- A. 20
- B. 200
- C. 1000
- D. 2000 Discuss
More questions
Correct Answer: 0.015
Correct Answer: 0.91
Correct Answer: PVC
Correct Answer: 40
Correct Answer: Quartz
Correct Answer: 29
Correct Answer: neutrons
Correct Answer: 10
Correct Answer: 50
Correct Answer: 200
Comments
There are no comments.More in Chemical Engineering:
Programming
Copyright ©CuriousTab. All rights reserved.