Discussion
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- Question
Ponchon Savarit method is based on the use of enthalpy concentration diagram, which contains the bubble point curve (saturated liquid curve), dew point curve (saturated vapour curve) and equilibrium tie lines. As compared to McCabe-Thiele's method, this method
Options- A. is more accurate in finding the number of equilibrium stages.
- B. accounts for the enthalpy changes in the process.
- C. facilitates direct calculation of heat load on reboiler & condenser from, the diagram used in this method.
- D. all 'a', 'b' & 'c'.
- Correct Answer
- all 'a', 'b' & 'c'.
- 1. Number of gm moles of solute dissolved in 1 kg of solvent is called its
Options- A. normality
- B. molarity
- C. molality
- D. formality Discuss
- 2. 25 per cent cut segmental baffle means that the baffle
Options- A. height is 75% of the I.D. of the shell.
- B. height is 25% of the I.D. of the shell.
- C. spacing is 75% of its height.
- D. width is 25% of its height. Discuss
- 3. The distance between the centre of a rivet hole to the nearest edge of the plate is called
Options- A. pitch
- B. margin
- C. back pitch
- D. none of these Discuss
- 4. Spalling tendency of refractories is reduced by increasing its
Options- A. porosity
- B. specific gravity
- C. thermal conductivity
- D. strength Discuss
- 5. Petroleum liquid fuels having flash point greater than 66°C is considered as safe during storage and handling. Which of the following has flash point > 66°C?
Options- A. Naphtha
- B. Petrol
- C. Kerosene
- D. Heavy fuel oil Discuss
- 6. __________ temperature scale assigns 0° to the 'ice point' and 80° to the 'steam point'.
Options- A. Celcius
- B. Rankine
- C. Reumur
- D. Farenhite Discuss
- 7. Maximum use of petroleum coke is in
Options- A. adsorption refining operation.
- B. fuel gas manufacture.
- C. carbon electrode manufacture.
- D. iron ore reduction. Discuss
- 8. Radioactive decay is a __________ change.
Options- A. chemical
- B. nuclear
- C. physical
- D. none of these Discuss
- 9. With increase in pressure, the relative volatility for a binary system
Options- A. increases.
- B. decreases.
- C. remains same.
- D. either (a) or (b), depends on the system. Discuss
- 10. Adiabatic flame temperature of a fuel is dependent on the initial temperature of
Options- A. fuel
- B. air
- C. both (a) & (b)
- D. neither (a) nor (b) Discuss
More questions
Correct Answer: molality
Correct Answer: height is 75% of the I.D. of the shell.
Correct Answer: margin
Correct Answer: porosity
Correct Answer: Heavy fuel oil
Correct Answer: Reumur
Correct Answer: carbon electrode manufacture.
Correct Answer: nuclear
Correct Answer: decreases.
Correct Answer: both (a) & (b)
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