1
GATE ME 2012
MCQ (Single Correct Answer)
+2
-0.6
Air enters an adiabatic nozzle at $$300$$ $$kPa,$$ $$500$$ $$K$$ with a velocity of $$10$$ $$m/s.$$ It leaves the nozzle at $$100$$ $$kPa$$ with a velocity of $$180$$ $$m/s.$$ The inlet area is $$80$$ $$c{m^2}.$$ The specific heat of air $${C_p}$$ is $$1008$$ $$J/kg.K.$$
The exit temperature of the air is
2
GATE ME 2012
MCQ (Single Correct Answer)
+2
-0.6
Air enters an adiabatic nozzle at $$300$$ $$kPa,$$ $$500$$ $$K$$ with a velocity of $$10$$ $$m/s.$$ It leaves the nozzle at $$100$$ $$kPa$$ with a velocity of $$180$$ $$m/s.$$ The inlet area is $$80$$ $$c{m^2}.$$ The specific heat of air $${C_p}$$ is $$1008$$ $$J/kg.K.$$
The exit area of the nozzle in $$c{m^2}$$ is
3
GATE ME 2012
MCQ (Single Correct Answer)
+2
-0.6
Steam enters an adiabatic turbine operating at steady state with an enthalpy of $$3251.0kJ/kg$$ and leaves as a saturated mixture at $$15$$ $$kPa$$ with quality (dryness fraction ) $$0.9.$$ The enthalpies of the saturated liquid and vapour at $$15$$ $$kPa$$ are $${h_f} = 225.94kJ/kg$$ and $${h_g} = 2598.3kJ/kg$$ respectively. The mass flow rate of steam is $$10kg/s.$$ Kinetic and potential energy changes are negligible. The power output of the turbine in $$MW$$ is
4
GATE ME 2011
MCQ (Single Correct Answer)
+2
-0.6
The temperature and pressure of air in a large reservoir are $$400$$ $$K$$ and $$3$$ bar respectively. A converging diverging nozzle of exit area $$0.005{m^2}$$ is fitted to the wall of the reservoir as shown in the figure. The static pressure of air at the exit section for isentropic flow through the nozzle is $$50$$ $$kPa.$$ The characteristic gas constant and the ratio of specific heats of air are $$0.287$$ $$kJ/kgK$$ and $$1.4$$ respectively.
The density of air in $$kg/{m^3}$$ at the nozzle exit is
Questions Asked from First Law of Thermodynamics (Marks 2)
Number in Brackets after Paper Indicates No. of Questions
GATE ME 2023 (2)
GATE ME 2022 Set 2 (1)
GATE ME 2022 Set 1 (1)
GATE ME 2017 Set 2 (1)
GATE ME 2017 Set 1 (1)
GATE ME 2016 Set 2 (1)
GATE ME 2016 Set 3 (1)
GATE ME 2015 Set 2 (1)
GATE ME 2015 Set 1 (1)
GATE ME 2013 (1)
GATE ME 2012 (3)
GATE ME 2011 (2)
GATE ME 2008 (2)
GATE ME 2002 (1)
GATE ME 2001 (1)
GATE ME 2000 (1)
GATE ME 1993 (1)
GATE ME Subjects
Engineering Mechanics
Machine Design
Strength of Materials
Heat Transfer
Production Engineering
Industrial Engineering
Turbo Machinery
Theory of Machines
Engineering Mathematics
Fluid Mechanics
Thermodynamics
General Aptitude