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- Question
Claude process of gas liquefaction employs
Options- A. merely compression of gas beyond its critical pressure.
- B. Joule-Thomson expansion cooling.
- C. heat exchange with colder stream.
- D. adiabatic expansion against a piston or in a turbine.
- Correct Answer
- adiabatic expansion against a piston or in a turbine.
- 1. Polycaprolactum is commercially known as
Options- A. nylon-6
- B. nylon-66
- C. dacron
- D. rayon Discuss
- 2. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of
Options- A. callagen
- B. tannin
- C. molasses
- D. carbohydrate Discuss
- 3. Mineral oils (e.g. petroleum oils) are preferred over fatty oils (e.g. mustard oil, ghee, tallow, palm oil, olive oil etc.) as a lubricant due to its
Options- A. poor oxidation stability and high gum forming tendency.
- B. greater tendency of decomposition at elevated temperature.
- C. hydrolysis tendency in presence of water.
- D. all (a), (b) and (c). Discuss
- 4. Raw materials used for producing __________ cement does not contain iron oxide.
Options- A. waterproof
- B. slag
- C. white
- D. pozzolan Discuss
- 5. Very fine suspended and colloidal impurities are removed from water by a process called
Options- A. sedimentation
- B. coagulation
- C. disinfection
- D. softening Discuss
- 6. Pasteurisation of milk means
Options- A. removal of fatty and albuminous substance from it.
- B. killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.
- C. inhibiting the growth of micro-organisms without killing them.
- D. none of these. Discuss
- 7. Esterification reaction
Options- A. produces soap.
- B. is reversible.
- C. is a reaction between an alcohol and an organic acid.
- D. all (a), (b) and (c). Discuss
- 8. Thermal conductivity measurement com-prises the working principle of a
Options- A. CO2 analyser
- B. polarimeter
- C. spectrometer
- D. chromatograph Discuss
- 9. Which of the following is the dynamic characteristics of an instrument?
Options- A. Reproducibility
- B. Sensitivity
- C. Dead zone
- D. Fidelity Discuss
- 10. The second order system with the transfer function
has a damping ratio of
Options- A. 2.0
- B. 0.5
- C. 1.0
- D. 4.0 Discuss
Chemical Process problems
Search Results
Correct Answer: nylon-6
Correct Answer: callagen
Correct Answer: all (a), (b) and (c).
Correct Answer: white
Correct Answer: coagulation
Correct Answer: killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.
Correct Answer: all (a), (b) and (c).
Correct Answer: CO2 analyser
Correct Answer: Fidelity
Correct Answer: 0.5
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