Related Questions

When the temperature of air leaving the inter-cooler, in a two stage compression with inter-cooler, is ________ the original atmospheric air temperature, then the intercooling is known as perfect or complete intercooling.
A Equal to
B Less than
C More than
D None of these
For perfect intercooling in a three stage compressor
A $$\frac{{{{\text{p}}_2}}}{{{{\text{p}}_1}}} = \frac{{{{\text{p}}_3}}}{{{{\text{p}}_2}}} = \frac{{{{\text{p}}_4}}}{{{{\text{p}}_3}}}$$
B $$\frac{{{{\text{p}}_3}}}{{{{\text{p}}_1}}} = \frac{{{{\text{p}}_4}}}{{{{\text{p}}_2}}}$$
C $${{\text{p}}_1}{{\text{p}}_2} = {{\text{p}}_3}{{\text{p}}_4}$$
D $${{\text{p}}_1}{{\text{p}}_3} = {{\text{p}}_2}{{\text{p}}_4}$$
For perfect intercooling in a two stage compressor
A $$\frac{{{{\text{p}}_2}}}{{{{\text{p}}_1}}} = \frac{{{{\text{p}}_3}}}{{{{\text{p}}_2}}}$$
B $$\frac{{{{\text{p}}_1}}}{{{{\text{p}}_3}}} = \frac{{{{\text{p}}_2}}}{{{{\text{p}}_1}}}$$
C $${{\text{p}}_1} = {{\text{p}}_3}$$
D $${{\text{p}}_1} = {{\text{p}}_2}{{\text{p}}_3}$$
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
The fuel consumption in gas turbines is accounted for by
A Lower heating value
B Higher heating value
C Heating value
D Higher calorific value
The closed cycle in gas turbines
A Provides greater flexibility
B Provides lesser flexibility
C In never used
D Is used when gas is to be burnt
Gas turbines for power generation are normally used
A To supply base load requirements
B To supply peak load requirements
C To enable start thermal power plant
D In emergency
In gas turbines, high thermal efficiency is obtained in
A Closed cycle
B Open cycle
C Both of the above
D Closed/open depending on other considerations
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

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