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- Question
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).
- Correct Answer
- all (a), (b) and (c).
- 1. 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
- 2. 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. Discuss
- 3. Polycaprolactum is commercially known as
Options- A. nylon-6
- B. nylon-66
- C. dacron
- D. rayon Discuss
- 4. Gelatine which is a nitrogenous organic protein is obtained by the hydrolysis of
Options- A. callagen
- B. tannin
- C. molasses
- D. carbohydrate Discuss
- 5. 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
- 6. Thermal conductivity measurement com-prises the working principle of a
Options- A. CO2 analyser
- B. polarimeter
- C. spectrometer
- D. chromatograph Discuss
- 7. Which of the following is the dynamic characteristics of an instrument?
Options- A. Reproducibility
- B. Sensitivity
- C. Dead zone
- D. Fidelity Discuss
- 8. 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
- 9. Response of a system to a sinusoidal input is called __________ response.
Options- A. impluse
- B. unit step
- C. frequency
- D. none of these Discuss
- 10. Continuous shell temperature measurement in a liquid-liquid heat exchanger is done by a
Options- A. thermocouple
- B. reistance thermometer
- C. mercury in glass thermometer
- D. vapor pressure thermometer Discuss
Chemical Process problems
Search Results
Correct Answer: killing of organisms present in it by heating it at controlled temperature without changing its natural characteristics.
Correct Answer: adiabatic expansion against a piston or in a turbine.
Correct Answer: nylon-6
Correct Answer: callagen
Correct Answer: all (a), (b) and (c).
Correct Answer: CO2 analyser
Correct Answer: Fidelity
Correct Answer: 0.5
Correct Answer: frequency
Correct Answer: thermocouple
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