Related Questions

Of the total tar present in raw coke oven gas, the tar recovered in primary cooler is about __________ percent.
A 5
B 25
C 55
D 75
Coal tar (produced by high temperature carbonisation) is the main source of
A Aromatic compounds
B Alphatic compounds
C Paraffins
D Olefins
Although it can be derived _______ oil, coal and tar, kerosene is usually produced _______ refining it from petroleum.
A from/by
B in/from
C at/on
D near/along
Coke oven gas after passing through return electrostatic tar precipitator (RETP) is used for the
A Hot scarfing of steel slabs
B Mixing with blast furnace gas
C Coke oven battery heating
D Steel ladle drying
Traces of tar fog present in the coke oven gas is removed by
A Cyclone separator
B Wet packed scrubber
C Electrostatic precipitator
D Washing with monoethanolamine
Traces of liquid tar fog present in coke oven gas is separated using
A Electrostatic precipitator
B Cyclone separator
C Strainer
D None of these
Producer gas is produced by
A Carbonisation of coal
B Passing steam over incandescent coke
C Passing air and a large amount of steam over waste coal at about 65°C
D Partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast
The cost of manufacturing x water pumps is Tk.9000+400x. The amount received by selling these x water pumps is Tk. 500x. What is the least number of water pumps that must be manufactured and sold so that that the amount recieved is at least equal to the manufacturing cost ?
A 50
B 60
C 90
D 100
The density of a gas 'X' is twice that of another gas 'Y'. If the molecular weight of gas 'Y' is 'M'; then the molecular weight of the gas 'X' will be
A 2M
B $$\frac{{\text{M}}}{2}$$
C M
D $$\frac{{\text{M}}}{4}$$
দুটি এক-পরমাণুক আদর্শ গ্যাস পরস্পরের সাথে তাপীয় সাম্যাবস্থায় আছে। A গ্যাস m ভরের অণু দ্বারা গঠিত, এবং B গ্যাস 4m ভরের অণু দ্বারা গঠিত। A গ্যাসের আয়তন ৪ গ্যাসের আয়তনের দ্বিগুণ। এদের চাপের অনুপাত PA / PB কত? (Two monoatomic ideal gases are in thermal equilibrium with each other. Gas A is composed of molecules with mass m while gas B is composed of molecules with mass 4m. The volume of gas A is twice that of gas B. What it the ratio of their pressures PA / PB ?)
A 1/4
B 1/2
C 1
D 2

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