Discussion
Home ‣ Chemical Engineering ‣ Stoichiometry See What Others Are Saying!
- Question
Sometimes, in chemical processes, a part of the outlet stream is rejected as waste in order to keep the impurity level in the system within limits. This phenomenon is termed as the
Options- A. recycling
- B. purging
- C. bypassing
- D. recirculation
- Correct Answer
- purging
- 1. A typical yield of kerosene in straight run distillation of crude oil may be about __________ percent.
Options- A. 4
- B. 10
- C. 18
- D. 26 Discuss
- 2. Natural gas recovered along with crude oil from oil wells is called wet natural gas which has a higher __________ compared to the dry natural gas.
Options- A. unsaturated hydrocarbon content
- B. calorific value
- C. quantity of propane
- D. quantity of butane Discuss
- 3. Construction expenses are roughly __________ percent of the total direct cost of the plant.
Options- A. 2
- B. 10
- C. 30
- D. 50 Discuss
- 4. Unbreakable crockeries are made from __________ polymers.
Options- A. polystyrene
- B. melamine
- C. polystyrene
- D. polyurathane Discuss
- 5. Which of the following plays an important role in problems of simultaneous heat and mass transfer?
Options- A. Lewis number
- B. Schmidt number
- C. Prandtl number
- D. Sherwood number Discuss
- 6. Welded joint efficiency in the design of chemical process equipment is taken as
Options- A. 0.55
- B. 0.75
- C. 0.85
- D. 0.95 Discuss
- 7. Which of the following is not a revolving/tumbling mill used for size reduction?
Options- A. Compartment mill
- B. Pebble mill
- C. Cage mill
- D. Rod mill Discuss
- 8. Periclase is
Options- A. crystalline form of MgO.
- B. MgCO3.
- C. ZrSO4.
- D. amorphous magnesite. Discuss
- 9. Pick out the wrong statement.
Options- A. Orifice baffles are never used in a shell and tube heat exchanger.
- B. Pressure drop on the shell side of a heat exchanger depends upon tube pitch also.
- C. In a horizontal tube evaporator, surface blanketing by air is avoided.
- D. Split ring type and pull through type floating heads are two commonly used floating heads is heat exchangers. Discuss
- 10. Relative cost of chemical process plants in India is about __________ percent more than the similar plants in U.S.A.
Options- A. 15
- B. 35
- C. 55
- D. 75 Discuss
More questions
Correct Answer: 10
Correct Answer: calorific value
Correct Answer: 10
Correct Answer: melamine
Correct Answer: Lewis number
Correct Answer: 0.85
Correct Answer: Cage mill
Correct Answer: crystalline form of MgO.
Correct Answer: Orifice baffles are never used in a shell and tube heat exchanger.
Correct Answer: 35
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