Related Questions

Which is the most efficient dust removal equipment for removal of sub-micronic dust particles from blast furnace gas?
A Packed scrubber
B Gravity settling chamber
C Electrostatic precipitator
D Hydrocyclone
Rashna Company collected the following data in its accounting records in 2014 : From the income statement : Depreciation expense Tk. 1,000 Loss on sale of equipment 3,000 From the comparative balance sheet : Beginning balance , equipment Tk. 12,500 Ending balance , equipment 8,000 Beginning balance , accumulated depreciation 2,000 Ending balance , accumulated depreciation 2,400 No new equipment was purchased during the year. The equipment was sold at the end of the year. What was the cash in -flow from the sale of equipment in 2014?
A Tk, 3,900
B Tk. 1,000
C Tk. 900
D Tk. 600
Most efficient and suitable dust removal equipment for removal of flyash from flue gas in a thermal power plant is the
A Gravity settling chamber
B Cyclone separator
C Electrostatic precipitator
D Bag filter
In the blast furnace, incorporation of water vapour in the blast gives the following effect.
A Increases the reducing potential of the gas
B Increases the flame temperature
C No significant change occurs
D Increases the hydrogen content in the metal
Thermal efficiency of blast furnace stoves used for heating blast (air) may be about __________ percent.
A 20
B 40
C 60
D 80
In the cyclone separator used for separation of dust from dust laden gas, the gas
A Enters the cyclone from the top
B Is admitted tangentially at high velocity
C Develops a helical motion inside the chamber
D Both B and C
Operation of blast furnace stove is based on the principles of a __________ furnace.
A Regenerative
B Recuperative
C Both A and B
D Neither A nor B
Which of the following fine dust removal equipments is the most efficient?
A Bag filter
B Scrubber
C Electrostatic precipitator
D Cyclone separator
Blast furnace gas compared to coke oven gas has
A Lower ignition temperature
B Narrower limit of inflammability
C Higher calorific value
D Lower theoretical flame temperature
Coke oven gas is a better fuel than blast furnace gas, because of its higher
A Calorific value, cleanliness and relatively low distribution cost (due to its low specific gravity)
B Adiabatic flame temperature
C Heat release rate (thus requiring smaller combustion chamber)
D All of the above

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