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- Question
'Utilities' in a chemical process plant includes compressed air, steam, water, electrical power, oxygen, acetylene, fuel gases etc. Utility costs for ordinary chemical process plants ranges roughly from __________ percent of the total product cost.
Options- A. l to 5
- B. 10 to 20
- C. 25 to 35
- D. 35 to 45
- Correct Answer
- 10 to 20
- 1. Which of the following plants does not emit appreciable amount of SO2 in atmosphere?
Options- A. Thermal power plant
- B. Petroleum refinery
- C. Nitric acid plant
- D. Sulphuric acid plant Discuss
- 2. Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas?
Options- A. Packed scrubber
- B. Gravity settling chamber
- C. Electrostatic precipitator
- D. Hydrocyclone Discuss
- 3. Lane and Garton classification of petroleum is based on its
Options- A. composition
- B. specific gravity
- C. optical properties
- D. viscosity Discuss
- 4. Filter aids like asbestos, kieselguhr, diatomaceous earth etc. are used to increase the porosity of the final filter cake & reducing the cake resistance during filtration. Filter aid is
Options- A. added to the feed slurry.
- B. precoated on the filter medium prior to filtration.
- C. separated from the cake by dissolving solids or by burning it off.
- D. all 'a', 'b'&'c'. Discuss
- 5. A material in which the atoms are arranged regularly in some directions but not in others, is termed as 'mesomorphous material'; an example of which is
Options- A. lead
- B. glass
- C. mica
- D. silver Discuss
- 6. Char value of Kerosene is the amount of charred oil deposition on the wick obtained after burning it in a standard wick lamp at a standard rate for 24 hours. Char value of a good quality kerosene should be less than __________ mg/kg of kerosene.
Options- A. 1
- B. 20
- C. 100
- D. 500 Discuss
- 7. Magnesite bricks are used in those parts of furnaces, which are
Options- A. subjected to temperature fluctuation.
- B. required to resist corrosive basic slag.
- C. subjected to high load.
- D. none of these. Discuss
- 8. 'Safe limit' called Threshold Limit Value (TLV) of carbon monoxide in atmospheric air is < 50 ppm. The main source of carbon monoxide pollutant in air is the
Options- A. industrial chimney exhaust.
- B. automobiles exhaust.
- C. photochemical reaction in polluted atmosphere.
- D. burning of domestic fuel. Discuss
- 9. Which of the following is a manmade source of air pollution?
Options- A. Automobile exhaust.
- B. Forest fire.
- C. Bacterial action in soil and swamp areas
- D. All (a), (b) and (c). Discuss
- 10. Main constituent of natural rubber is
Options- A. polystyrene
- B. polyisoprene
- C. polybutadiene
- D. poly chloroprene Discuss
More questions
Correct Answer: Nitric acid plant
Correct Answer: Electrostatic precipitator
Correct Answer: specific gravity
Correct Answer: all 'a', 'b'&'c'.
Correct Answer: lead
Correct Answer: 20
Correct Answer: required to resist corrosive basic slag.
Correct Answer: automobiles exhaust.
Correct Answer: Automobile exhaust.
Correct Answer: polyisoprene
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