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Fluid means:
NET
NUST Entry Test
Physics
Fluid Dynamics
The unit of $\rho gh$ in Bernoulli's equation is:
NET
NUST Entry Test
Physics
Fluid Dynamics
In deriving Bernoulli's equation, we assume that fluid is:
NET
NUST Entry Test
Physics
Fluid Dynamics
Volume of a cylinder can be found by:
NET
NUST Entry Test
Physics
Fluid Dynamics
Torricelli's theorem states that speed of efflux is ______ the velocity gained by the liquid in falling through the distance h under the action of ________
NET
NUST Entry Test
Physics
Fluid Dynamics
If velocity of efflux is $100 m sec^{-1}$ and area of the hole is $0.06 cm^{2}$, how much volume of water will flow out of the hole in one second?
NET
NUST Entry Test
Physics
Fluid Dynamics
The action of perfume bottles depends upon:
NET
NUST Entry Test
Physics
Fluid Dynamics
Chimney works _____ when it is ______
NET
NUST Entry Test
Physics
Fluid 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:
NET
NUST Entry Test
Physics
Fluid Dynamics
We can infer from Bernoulli's theorem that where the speed of the fluid is high, there the pressure will be:
NET
NUST Entry Test
Physics
Fluid Dynamics
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:
NET
NUST Entry Test
Physics
Fluid Dynamics
Unity of density to mass ratio is:
NET
NUST Entry Test
Physics
Fluid Dynamics
As the water falls from a tap, the speed of water _______ and so its cross-sectional arca _______
NET
NUST Entry Test
Physics
Fluid Dynamics
Turbulent flow is:
NET
NUST Entry Test
Physics
Fluid Dynamics
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
NET
NUST Entry Test
Physics
Fluid Dynamics
Ratio of mass to density gives:
NET
NUST Entry Test
Physics
Fluid Dynamics
If the fluid is _______ and flow is _______ then mass is conserved
NET
NUST Entry Test
Physics
Fluid Dynamics
The equation of continuity is defined as $A_{1}v_{1}=A_{2}v_{2}. The unit of $A_{1}v_{1}$ is:
NET
NUST Entry Test
Physics
Fluid Dynamics
Density of water and density of air have been found respectively as:
NET
NUST Entry Test
Physics
Fluid Dynamics
The irregular or unsteady flow of the fluid is called:
NET
NUST Entry Test
Physics
Fluid Dynamics
The direction of the velocity of fluid at certain point and direction of streamline are:
NET
NUST Entry Test
Physics
Fluid Dynamics
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:
NET
NUST Entry Test
Physics
Fluid Dynamics
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:
NET
NUST Entry Test
Physics
Fluid Dynamics
The dimensions of viscosity are:
NET
NUST Entry Test
Physics
Fluid Dynamics
When the upward drag force of the fluid becomes equal to downward force of gravity of the droplet, then its velocity:
NET
NUST Entry Test
Physics
Fluid Dynamics
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