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
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
There is a certain pressure ratio (optimum) for a gas turbine at which its thermal efficiency is maximum. With increase in turbine temperature, the value of pressure ratio for the peak efficiency would
A Remain same
B Decrease
C Increase
D None of the above
The thermal efficiency of an air/fuel gas preheating recuperator may be as high as __________ percent.
A 50
B 65
C 85
D 99
High air-fuel ratio is used in gas turbines
A To increase the output
B To increase the efficiency
C To save fuel
D To reduce the exit temperature
High air-fuel ratio in gas turbines
A Increases power output
B Improves thermal efficiency
C Reduces exhaust temperature
D Do not damage turbine blades
Thermal efficiency of a thermal power plant is of the order of
A 15%
B 20%
C 30%
D 45%
The ratio of indicated thermal efficiency to the corresponding air standard cycle efficiency is called
A Net efficiency
B Efficiency ratio
C Relative efficiency
D Overall efficiency
The ratio of the indicated thermal efficiency to the air standard efficiency is known as
A Mechanical efficiency
B Overall efficiency
C Volumetric efficiency
D Relative efficiency
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 $$\frac{{\text{M}}}{4}$$

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