81. If a fluid expands suddenly into vacuum through an orifice of large dimension, then such a process is called
82. The general gas equation is (where p = Pressure, v = Volume, m = mass, T = Absolute temperature and R = Gas constant)
83. The heat supplied to the gas at constant volume is (where m = Mass of gas, Cv = Specific heat at constant volume, Cp = Specific heat at constant pressure, T2 - T1 = Rise in temperature and R = Gas constant)
84. Relation between cp and cv is given by (where cp = Specific heat at constant pressure, cv = Specific heat at constant volume, $$\gamma = \frac{{{{\text{c}}_{\text{p}}}}}{{{{\text{c}}_{\text{v}}}}},$$ known as adiabatic index and R = Gas constant)
85. Those substances which have so far not been resolved by any means into other substances of simpler form are called
86. For same compression ratio and for same heat added
87. The natural solid fuel is
88. The heat absorbed or rejected by the working substance is given by (where ds = Increase or decrease of entropy, T = Absolute temperature and dQ = Heat absorbed or rejected)
89. The efficiency of a gas turbine is given by
90. One kg of carbon monoxide requires __________ kg of oxygen to produce $$\frac{{11}}{7}$$ kg of carbon dioxide gas.
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