The mass of flue gas per kg of fuel is the ratio of the

A Mass of oxygen in 1 kg of flue gas to the mass of oxygen in 1 kg of fuel
B Mass of oxygen in 1 kg of fuel to the mass of oxygen in 1 kg of flue gas
C Mass of carbon in 1 kg of flue gas to the mass of carbon in 1 kg of fuel
D Mass of carbon in 1 kg of fuel to the mass of carbon in 1 kg of flue gas

Correct Answer: Mass of carbon in 1 kg of flue gas to the mass of carbon in 1 kg of fuel

Bissoy MCQ
#Mechanical Engineering #Engineering Thermodynamics

Related Questions

Thermal conductivity based continuous flue gas analyser makes use of varying thermal conductivity of the constituents of flue gases. Which of the following constituents of flue gases has the maximum thermal conductivity?
A CO2
B N2
C O2
D CO
The ratio of the energy required to produce the artificial draught (expressed in meters head or J/kg of flue gas) to the mechanical equivalent of extra heat carried away per kg of flue gases due to natural draught, is known as
A Efficiency of the boiler
B Efficiency of the chimney
C Efficiency of the fan
D Power of the boiler
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
Travelling at a constant speed of 32 miles per hours, a certain motorboat consumers 24gallons of fuel per hour. What is the fuel consumption of his boat this speed measured in miles per gallons of fuel?
A 2/3
B 3/4
C 4/5
D 4/3
If oxygen content in the flue gas rises too high, fuel is being wasted by
A Incomplete combustion
B Dry gas/stack gas loss
C Moisture loss
D None of these
White flue gas (resembling steam) coming out of the chimney of a thermal power plant indicates that the fuel used in the boiler furnace is
A Tar
B Coke oven gas
C Pitch
D Pulverised coke
Oxygen percentage in the flue gas coming out of a gaseous fuel fired furnace should be ideally about __________ percent.
A [

A.

B.

Incomplete combustion of a fuel is characterised by the high __________ in the flue gas.
A Smoke
B Temperature
C Oxygen
D Carbon monoxide
Flue gas obtained on complete combustion of pure acetylene (a hydrocarbon fuel) will contain
A CO
B CO2
C H2O
D Both B & C
when a truck travels at 60 miles per hour, it uses 30 percent more gasoline to travel andy distance than it does when it travels at 50 miles per hour. The truck can travel 20 miles on a gallon of gas if it is travelling at 50 miles per hour. The truck has only 10 gallons of gas and is 160 miles from its destination. It takes 20 minutes for the truck to stop for gas . How long will it take the truck to reach its final destination if it is driven at 60 miles per hour?
A 160 minutes
B 180 minutes
C 190 minutes
D 192 minutes

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