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Chimney works _____ when it is ______

NETNUST Entry TestPhysicsFluid Dynamics

The pipe near the low end of a large water storage tank develops a small leak and a stream of water shoots from it. The top of water in the tank is 15 m above the point of leak. The water will rush from the hole at a speed of:

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We can infer from Bernoulli's theorem that where the speed of the fluid is high, there the pressure will be:

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In a steady flow of an incompressible fluid, the rate of flow of mass inward is equal to rate of flow of mass outward. This is statement of:

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Unity of density to mass ratio is:

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As the water falls from a tap, the speed of water _______ and so its cross-sectional arca _______

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Turbulent flow is:

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From $A_{1}v_{1}=A_{2}v_{2}$, it follows that velocity of flow in a pipe is ______ where there is constriction in the cross-section

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Ratio of mass to density gives:

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If the fluid is _______ and flow is _______ then mass is conserved

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The equation of continuity is defined as $A_{1}v_{1}=A_{2}v_{2}. The unit of $A_{1}v_{1}$ is:

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Density of water and density of air have been found respectively as:

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The irregular or unsteady flow of the fluid is called:

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The direction of the velocity of fluid at certain point and direction of streamline are:

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The drag force acting on a spherical droplet of radius $10^{-6}$ m moving with a velocity of 1 cm/sec in a fluid of viscosity $5.31 \times 10^{-7}$ comes out to be:

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A drop-like particle has a density of $10^{3} kg/m^{3}$. It falls through a fluid of $\eta=10^{-3}$ with a terminal velocity of $2.2 \times 10^{-6} m/sec$. The radius of the particle will be:

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The dimensions of viscosity are:

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When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:

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Stoke's law is not applicable when the speed of the object moving through a fluid is:

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Drag force increases if speed of the object moving through the fluid:

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Fog droplets are suspended in air when their weight is balanced by:

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At high speeds, fluid friction ______ and fuel consumption _________

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Two copper balls of 1 cm and 2 cm in diameter are simultaneously dropped in the same viscous medium. The terminal velocity of bigger ball is:

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When the droplet moves with terminal velocity in a fluid, the net force acting on the droplet is:

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The _______ viscous a medium is, ____ is the value of terminal velocity of the droplet

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