Recent questions tagged isro2009

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...

At the eye tip of a centrifugal impeller, blade velocity is $200 \: \text{m/s}$ while the uniform axial velocity at the inlet is $150 \: \text{m/s}$. If the sonic velocit...

The radiative heat transfer rate per unit area $(W/m2)$ between two plane parallel grey surfaces (emissivity $0.9$) maintained at $400 \: \text{K}$ and $300 \: \text{K}$ ...

The pressure drop for a relatively low Reynolds number flow in a $600 \: \text{mm}, \: 30 \: \text{m}$ long pipeline is $70 \;\text{kPa}$. What is the wall shear stress?$...

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...

A necessary precaution in selection of pumps for parallel operations is that$\text{H-Q}$ characteristics of both should be identicalBoth pumps should be centrifugal typeB...

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

The relation ${p^{V}}^{\gamma}=$ constant, where $\gamma$ is the ratio of the specific heats of ideal gas, is applicable toAny adiabatic processOnly reversible adiabatic ...

The correct sequence of the centrifugal pump components through which the fluid flows isImpeller, Suction pipe, Foot valve and strainer, Delivery pipeFoot valve and strai...

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...

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...