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Computational Fluid Dynamics
Quiz 1
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Q.1
Concepts under Fluid Dynamics
Bernoulli's Principle
Equation of Continuity
Pressure, Temperature & Composition
Both A & B
Q.2
_______________________ is an idea of fluid dynamics. It says that as speed of the fluid increases, pressure decreases. ... For a steady flow, the amount of fluid entering the pipe must equal the amount leaving the pipe, so the fluid speed in the thin part must increase.
Newton's First Law
Newton's Second Law
Newton's Third Law
Bernoulli's Principle
Q.3
Pitot tube measures
atmospheric pressure
Pressure in a car tyre
velocity of flow
piezometric pressure
Q.4
Blood has density equal to that of:
Mercury
Honey
water
glycerin
Q.5
One Torr is expressed in ππβ2 as:
133.3 ππβ2
13.33 ππβ2
1.333 ππβ2
1333 ππβ2
Q.6
If cross-sectional area of pipe decreases, the speed of fluid must increase according to:
Continuity equation
Bernoulli's equation
Torricelli's theorem
Venture relation
Q.7
Speed of efflux can be determined by applying:
Bernoulli's Equation
Continuity Equation
Torricelli's Theorem
Newton's law of motion
Q.8
A man standing near a fast moving train may fall.
Away from the train
Towards the train
On the same place
In the direction of train
Q.9
If radius of droplet becomes half then its terminal velocity will be:
Four times
Half
Double
One forth
Q.10
As the water falls from tap, its speed increases and cross sectional area:
Decreases
Increases
become zero
becomes Constant
Q.11
When the body reaches its terminal velocity, the acceleration of the body becomes
Zero
Minimum
Maximum
Half of the initial
Q.12
The maximum constant velocity of an object falling vertically downward is called:
Final velocity
Terminal velocity
Instantaneous velocity
Average velocity
Q.13
When weight of an object falling freely becomes equal to the drag force, then the body will move with:
Increasing speed
Decreasing speed
Constant speed
Constant acceleration
Q.14
An object moving through a fluid experience a retarding force called:
Drag force
Gravitational force
Terminating force
Frictional force
Q.15
The equation πΉ = 6ππππ£ is called:
Newtonβs law
Stokeβs law
Ohmβs law
Lenzβs law
Q.16
The dimensions of coefficient of viscosity is:
ML1T-2
M2L1T1
ML-1T-1
ML-1T-2
Q.17
In fluid dynamics, which of the following fundamental expressions links pressure to the fluid's speed and height?
Pascal's law.
Stokes' law.
Archimedes' principle.
Bernoulli's equation
Q.18
BONUS ROUNDIt is the branch of science that covers the behavior of fluids in a state of motion or rest.
Fluid Dynanics
Fluid Dynamics
Fluid Mechanics
Fluid Mechmics
Q.19
BONUS ROUNDIt is the sub-part of Fluid Mechanics that studies the flow of Fluid
Fluid Dymanics
Fluid Dinanics
Fluid Dimamics
Fluid Dynamics
Q.20
It states that, "as the speed of a fluid increases, there is a simultaneous decrease in the pressure of a fluid and a decrease in it's potential energy.
Pascal's Principle
Buoyancy and Archimedes' Principle
Bernoulli's Principle
Equation of Continuity
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