GATE ME 2012 | GATE ME Year Wise Previous Years Questions

GATE ME 2012

MCQ (Single Correct Answer)

-0.6

A large tank with a nozzle attached contains three immiscible, inviscid fluids as shown. Assuming that the changes in $${h_1},\,\,{h_2}$$ and $${h_3}$$ are negligible, the instantaneous discharge velocity is GATE ME 2012 Fluid Mechanics - Fluid Dynamics Question 22 English

GATE ME 2012 Fluid Mechanics - Fluid Dynamics Question 22 English

$$\sqrt {2g{h_3}\left( {1 + {{{\rho _1}} \over {{\rho _3}}}\,{{{h_1}} \over {{h_3}}} + {{{\rho _2}} \over {{\rho _3}}}{{{h_2}} \over {{h_3}}}} \right)} $$

$$\sqrt {2g\left( {{h_1} + {h_2} + {h_3}} \right)} $$

$$\sqrt {2g\left( {{{{\rho _1}{h_1} + {\rho _2}{h_2} + {\rho _3}{h_3}} \over {{\rho _1} + {\rho _2} + {\rho _3}}}} \right)} $$

$$\sqrt {2g\left( {{{{\rho _1}{h_2}{h_3} + {\rho _2}{h_3}{h_1} + {\rho _3}{h_1}{h_2}} \over {{\rho _1}{h_1} + {\rho _2}{h_2} + {\rho _3}{h_3}}}} \right)} $$

GATE ME 2012

MCQ (Single Correct Answer)

-0.6

An incompressible fluid flows over a flat plate with zero pressure gradient. The boundary layer thickness is $$1mm$$ at a location where the Reynolds number is $$1000$$. If the velocity of the fluid alone is increased by a factor of $$4,$$ then the boundary layer thickness sat the same location, in $$mm$$ will be

$$4$$

$$2$$

$$0.5$$

$$0.25$$

GATE ME 2012

MCQ (Single Correct Answer)

-0.3

Which one of the following configurations has the highest fin effectiveness?

Thin, closely spaced fins

Thin, widely spaced fins

Thick, widely spaced fins

Thick, closely spaced fins

GATE ME 2012

MCQ (Single Correct Answer)

-0.3

For an opaque surface, the absorptivity $$\left( \alpha \right),$$ transmissivity $$\left( \tau \right)$$ and reflectivity $$\left( \rho \right)$$ are related by the equation:

$$\alpha + \rho = \tau $$

$$\rho + \alpha + \tau = 0$$

$$\alpha + \rho = 1$$

$$\alpha + \rho = 0$$

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