GATE ME 2000 | GATE ME Year Wise Previous Years Questions

GATE ME 2000

Subjective

-0

A certain mass of a pure substance undergoes an irreversible process from state $$1$$ to state $$2,$$ the path of the process being a straight line on the $$T$$-$$s$$ diagram. Calculate heat transfer & work done. Some of the properties at the initial and final states are:
$${T_1} = 330\,K,\,\,{T_2} = 440\,K;\,\,{U_1} = 170\,kJ,\,\,$$
$$\,{U_2} = 190\,kJ;\,\,{H_1} = 220{\,_{}}kJ,\,\,{H_2} = 247\,kJ,$$
and $${S_1} = 0.23\,kJ/K$$ and $${S_2} = 0.3\,kJ/K$$ where $$T, U, H$$ and $$S$$ represent temperature, internal energy, enthalpy and entropy respectively.

GATE ME 2000

MCQ (Single Correct Answer)

-0.3

Availability of a system at any given state is

a property of the system

the maximum work obtainable as the system goes to dead state

the total energy of the system

the maximum useful work obtainable as the system goes to dead state

GATE ME 2000

MCQ (Single Correct Answer)

-0.3

Which of the following is a pressure compounded turbine?

Parsons

Curtis

Rateau

all the three

GATE ME 2000

MCQ (More than One Correct Answer)

-0.6

For a compressible fluid, sonic velocity is

a property of the fluid

always given by $${\left( {\gamma RT} \right)^{{\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}}}$$ where $$\gamma $$, $$R$$ and $$T$$ are respectively the ratio of specific heats, gas constant and temperature in $$K$$

always given by $${\left( {\partial p/\partial \rho } \right)_s}^{{\raise0.5ex\hbox{$\scriptstyle 1$} \kern-0.1em/\kern-0.15em \lower0.25ex\hbox{$\scriptstyle 2$}}}.$$ Where $$P,$$ $$\rho $$ and $$s$$ are respectively pressure, density and entropy

always greater than the velocity of fluid at any location.

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