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- Question
During conversion of ammonium carbamate into urea, presence of large excess of water
Options- A. increases the yield of urea.
- B. adversely affects the yield of urea.
- C. reduces the evaporator load by diluting the urea solution.
- D. does not affect the yield of urea.
- Correct Answer
- adversely affects the yield of urea.
- 1. Regenerators are normally provided in the
Options- A. glass melting furnace.
- B. open hearth furnace.
- C. by product coke ovens.
- D. all (a), (b) and (c). Discuss
- 2. Quantity of fissionable material (i.e. U-235) in natural uranium is __________ percent.
Options- A. 0.71
- B. 6.31
- C. 99.29
- D. 12.73 Discuss
- 3. Maximum plate efficiency is achieved in case of __________ flow.
Options- A. split
- B. cross
- C. cascade
- D. reverse Discuss
- 4. Which tube arrangement in a heat exchanger would facilitate highest heat transfer rate?
Options- A. Triangular pitch.
- B. Square pitch.
- C. Diagonal square pitch.
- D. Heat transfer rate is independent of tube arrangement. Discuss
- 5. __________ conveyor is the most suitable for long distance transportation of cold, non-abrasive granular/irregular shape/fine materials.
Options- A. Bucket
- B. Belt
- C. Screw
- D. Apron Discuss
- 6. Artificially produced radioactive isotopes are used for
Options- A. power generation.
- B. treatment of certain diseases.
- C. initiating nuclear fission and fusion.
- D. all (a), (b) and (c). Discuss
- 7. The ratio of mass of a neutron to that of an electron is about 1839. What is the ratio of the mass of a proton to that of an electron?
Options- A. 159
- B. 1837
- C. 2537
- D. 10000 Discuss
- 8. Heat transfer co-efficient for a horizontal condenser as compared to a vertical condenser operating under similar conditions is
Options- A. same
- B. less
- C. about 3 times
- D. about 0.33 times Discuss
- 9. __________ is not a condensation polymer.
Options- A. Teflon
- B. Nylon-66
- C. Dacron
- D. Polystyrene Discuss
- 10. When the momentum of one fluid is used for moving another fluid, such a device is called a/an
Options- A. jet pump
- B. blower
- C. acid egg
- D. none of these Discuss
More questions
Correct Answer: all (a), (b) and (c).
Correct Answer: 0.71
Correct Answer: cross
Correct Answer: Triangular pitch.
Correct Answer: Belt
Correct Answer: treatment of certain diseases.
Correct Answer: 1837
Correct Answer: about 3 times
Correct Answer: Teflon
Correct Answer: jet pump
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