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- Question
Particles having diameter greater than 75 ?m (micrometer = 10-6 mm) are called
Options- A. grit
- B. dust
- C. powder
- D. smoke
- Correct Answer
- grit
- 1. The heat flux (from outside to inside) across an insulating wall with thermal conductivity, K= 0.04 W/m.°K and thickness 0.16m is 10 W/m2. The temperature of the inside wall is - 5°C. The outside wall temperature is
Options- A. 25°C
- B. 30°C
- C. 35°C
- D. 40°C Discuss
- 2. CO2 present in reformed gas (obtained by steam reforming of naphtha) is removed by absorbing in
Options- A. mono-ethanolamine (MEA)
- B. slaked lime
- C. ammoniacal liquor
- D. Methyl-Ethyl Ketone (MEK) Discuss
- 3. Paramagnetism method is not used for the composition determination of __________ in gases.
Options- A. oxygen
- B. oxides of nitrogen
- C. carbon dioxide
- D. any of these Discuss
- 4. Refractories used in/for __________ should have low thermal conductivity.
Options- A. coke ovens
- B. insulation
- C. regenerators
- D. muffle furnaces Discuss
- 5. Copper deposits are found in India at the following location:
Options- A. Kudremukh
- B. Kolar
- C. Khetri
- D. Ramagundam Discuss
- 6. If 1.5 moles of oxygen combines with aluminium to form Al2O3, then the weight of aluminium (atomic weight = 27 ) used in this reaction is __________ gm.
Options- A. 27
- B. 54
- C. 5.4
- D. 2.7 Discuss
- 7. Olefins are
Options- A. saturated hydrocarbons.
- B. unsaturated cyclic compounds (hydrocarbons).
- C. present in substantially good quantity in crude petroleum.
- D. none of these. Discuss
- 8. Solutions having the same osmotic pressure are called __________ solutions.
Options- A. dilute
- B. ideal
- C. isotonic
- D. saturated Discuss
- 9. Which of the following is not a secondary air pollutant?
Options- A. Ozone
- B. Photochemical smog
- C. Sulphur dioxide
- D. All (a), (b) & (c) Discuss
- 10. A thermal nuclear reactor compared to a fast breeder reactor
Options- A. uses slower neutrons for fission.
- B. uses faster neutrons for fission.
- C. gives higher power density.
- D. requires less fuel to run at the same power level. Discuss
More questions
Correct Answer: 35°C
Correct Answer: mono-ethanolamine (MEA)
Correct Answer: carbon dioxide
Correct Answer: insulation
Correct Answer: Khetri
Correct Answer: 54
Correct Answer: none of these.
Correct Answer: isotonic
Correct Answer: Sulphur dioxide
Correct Answer: uses slower neutrons for fission.
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