GATE ME 2000 | GATE ME Year Wise Previous Years Questions

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.

GATE ME 2000

Subjective

-0

A simple impulse turbine expands steam frictionlessly from $$12$$ bar, $${250^0}C$$ with an enthalpy of $$2935$$ $$kJ/kg$$ to an enthalpy of $$2584$$ $$kJ/kg$$ at $$0.1$$ bar. Assuming that the nozzle makes an angle of $${20^0}$$ with the blade motion, and that the blades are symmetrical, find the blade velocity that produces maximum efficiency for a turbine speed of $$3600$$ rev/min. assume that the steam enters the nozzle with negligible velocity.

GATE ME Papers

2020