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- Question
Pick out the wrong unit conversion.
Options- A. 1 J = 1 W.Second = 107 ergs = 9.5 x 10-4 BTU = 0.2389 calorie
- B. 1 Watt = 746 hp
- C. -
- D. -
- Correct Answer
- 1 Watt = 746 hp
- 1. To avoid the tearing off the plate of an edge, the margin (i.e., the minimum distance from the centre of the rivet hole to the nearest edge of the plate) should be equal to
Options- A. 0.5 d
- B. d
- C. 1.5 d
- D. 2.5 d Discuss
- 2. The amount of steam required per unit quantity of distillate in case of steam distillation will be reduced by
Options- A. raising the temperature.
- B. lowering the total pressure.
- C. both (a) and (b).
- D. neither (a) nor (b). Discuss
- 3. An aneroid barometer measures the __________ pressure.
Options- A. atmospheric
- B. absolute
- C. vacuum
- D. gage Discuss
- 4. In case of an absorber, the operating
Options- A. line always lies above the equilibrium curve.
- B. line always lies below the equilibrium curve.
- C. line can be either above or below the equilibrium curve.
- D. velocity is more than the loading velocity. Discuss
- 5. Turn down ratio of a burner
Options- A. should be as low as possible i.e., 1 : 2.
- B. should be 1:1 for a batch type furnace..
- C. is the ratio of maximum to minimum permissible heat input rates.
- D. is normally much more for a continuous furnace as compared to a batch furnace. Discuss
- 6. In case of a shell and tube heat exchanger, the effect of L/D on inside film heat transfer co-efficient (hi) vanishes after a Reynold number of
Options- A. 1000
- B. 3000
- C. 5000
- D. 10000 Discuss
- 7. 'Giga' stands for
Options- A. 109
- B. 10-12
- C. 1012
- D. 1015 Discuss
- 8. The specific heats of three gaseous coolants namely H2, He and CO2 in the increasing order are
Options- A. CO2, He, H2
- B. CO2, H2, He
- C. H2, He, CO2
- D. H2, CO2, He Discuss
- 9. Pick out the wrong statement pertaining to 'Horton sphere' used for the storage of liquid ammonia.
Options- A. Diameter of Horton sphere is normally 6 to 25 metres and it is supported by 6 to 12 nos. tubular or rolled section column.
- B. Thickness of spherical shell is half that of the cylinderical vessel under same operating pressure condition. Besides, the ratio of surface area to volume is less for sphere than any other shape ; hence insulation required is less.
- C. Horton sphere is used for the storage of gases and volatile liquid at a moderate pressure of 1 to 10 kg/cm2 .
- D. Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm2 . Discuss
- 10. __________ taxes are based on gross earnings.
Options- A. Property
- B. Excise
- C. Income
- D. Capital gain Discuss
More questions
Correct Answer: 1.5 d
Correct Answer: both (a) and (b).
Correct Answer: absolute
Correct Answer: line always lies above the equilibrium curve.
Correct Answer: is the ratio of maximum to minimum permissible heat input rates.
Correct Answer: 10000
Correct Answer: 109
Correct Answer: CO2, He, H2
Correct Answer: Horton sphere is used for the storage of liquid at sub-zero temperature at very high pressure upto 200 kg/cm2 .
Correct Answer: Income
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