ISRO2009-8

m2n037 asked Mar 6, 2018 • edited Jun 26, 2022 by Lakshman Bhaiya

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m2n037 asked Mar 6, 2018

ISRO2009-11
The transition Reynolds number for flow over a flat plate is $5\ast 10^5$. What is the distance from the leading edge at which transition will occur for flow of water with a uniform velocity of $1 \: \text{m/s}?\;($For water, the kinematic viscosity $v=0.86 \ast 10^{-6} \:\text{m}^2\text{/s})$ $0.43\;\text{m}$ $1\;\text{m}$ $43\;\text{m}$ $103\;\text{m}$

The transition Reynolds number for flow over a flat plate is $5\ast 10^5$. What is the distance from the leading edge at which transition will occur for flow of water wit...

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m2n037 asked Mar 6, 2018

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m2n037 asked Mar 6, 2018

ISRO2009-7
A metallic cube of side $10 \;\text{cm}$, density $6.8 \: gm/cc$ is floating in liquid mercury (density $13.6 \: \text{gm/cc}$), with $5 \;\text{cm}$ height of cube exposed above the mercury level. Water (density $1 \: \text{gm/cc}$) is filled over this, to submerge the cube ... of cube exposed above mercury level is $4.6 \;\text{cm}$ $5.4 \;\text{cm}$ $5.0 \;\text{cm}$ $5.8 \;\text{cm}$

A metallic cube of side $10 \;\text{cm}$, density $6.8 \: gm/cc$ is floating in liquid mercury (density $13.6 \: \text{gm/cc}$), with $5 \;\text{cm}$ height of cube expos...

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m2n037 asked Mar 6, 2018

ISRO2009-5
Across a normal shock Static pressure and the static temperature rise entropy remains constant velocity and static pressure decrease density and temperature decrease

Across a normal shockStatic pressure and the static temperature riseentropy remains constantvelocity and static pressure decreasedensity and temperature decrease

m2n037

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m2n037 asked Mar 6, 2018

ISRO2009-2
If the stream function is given by $\Psi=3xy$, then the velocity at a point $(2,3)$ will be $7.21 \: \text{unit}$ $18 \: \text{unit}$ $10.82 \: \text{unit}$ $54 \: \text{unit}$

If the stream function is given by $\Psi=3xy$, then the velocity at a point $(2,3)$ will be$7.21 \: \text{unit}$$18 \: \text{unit}$$10.82 \: \text{unit}$$54 \: \text{unit...

m2n037

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m2n037 asked Mar 6, 2018

ISRO2009-1
A hydraulic press has a ram of $15 \: \text{cm}$ diameter and plunger of $1.5 \: \text{cm}$. It is required to lift a mass of $1000 \: \text{kg}$. The force required on plunger is nearly equal to $100\;\text{N}$ $1000\;\text{N}$ $10000\;\text{N}$ $10\;\text{N}$

A hydraulic press has a ram of $15 \: \text{cm}$ diameter and plunger of $1.5 \: \text{cm}$. It is required to lift a mass of $1000 \: \text{kg}$. The force required on p...

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m2n037 asked Mar 6, 2018

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