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- Question
If a single tube pass heat exchanger is converted to two passes; for the same flow rate, the pressure drop per unit length in tube side will __________ times.
Options- A. increase by 1.8
- B. decrease by 22
- C. increase by 21.6
- D. none of these
- Correct Answer
- increase by 21.6
- 1. Both tritium and deuterium have the same number of
Options- A. neutrons
- B. electrons
- C. protons
- D. nucleons Discuss
- 2. °API gravity of water at N.T.P. is about
Options- A. 0
- B. 1
- C. 10
- D. 100 Discuss
- 3. Carbon Content by weight in air dried wood may be about __________ percent.
Options- A. 10
- B. 25
- C. 50
- D. 80 Discuss
- 4. Energy produced in the nuclear fission is of the order of __________ MeV.
Options- A. 20
- B. 200
- C. 1000
- D. 2000 Discuss
- 5.
for a Tee (used as elbow, entering run) would be around
Options- A. 5
- B. 60
- C. 200
- D. 350 Discuss
- 6. 200 mesh seive size corresponds to __________ microns.
Options- A. 24
- B. 74
- C. 154
- D. 200 Discuss
- 7. Polycaprolactum is also known as
Options- A. nylon-66
- B. nylon-6
- C. teflon
- D. SBR Discuss
- 8. Carbon/hydrogen ratio (by weight) is maximum (out of following) for
Options- A. gasoline
- B. kerosene
- C. light gas oil
- D. heavy fuel oil Discuss
- 9. Salt content in sea water is about __________ percent.
Options- A. 0.5
- B. 1
- C. 3.5
- D. 10 Discuss
- 10. Refractoriness/fusion points of 'superduty' refractories is __________ °C.
Options- A. 1520-1630
- B. 1630-1670
- C. > 1730
- D. > 2000 Discuss
More questions
Correct Answer: neutrons
Correct Answer: 10
Correct Answer: 50
Correct Answer: 200
Correct Answer: 60
Correct Answer: 74
Correct Answer: nylon-6
Correct Answer: gasoline
Correct Answer: 3.5
Correct Answer: > 1730
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