CHE 311 - Quiz Questions || with 100% Error-free Answers.
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Course
CHE 311
Institution
CHE 311
Atmospheric pressure is equal to: correct answers 101 kPa
Liquids can be easily compressed
a) yes
b) no
c) sometimes correct answers No
What is head of a fluid
a) Difference between absolute and hydrostatic pressure
b) Pressure exerted by a static fluid of height h
c) Height of flu...
CHE 311 - Quiz Questions || with 100% Error-free Answers.
Atmospheric pressure is equal to: correct answers 101 kPa
Liquids can be easily compressed
a) yes
b) no
c) sometimes correct answers No
What is head of a fluid
a) Difference between absolute and hydrostatic pressure
b) Pressure exerted by a static fluid of height h
c) Height of fluid inn a system relatively to the ground level
d) Force exerted by a static fluid of height h correct answers b) Pressure exerted by a static fluid
of height h
Pressure gradient for fluid moving under steady-state conditions should be equal to zero.
(yes/no) correct answers No
Pressure force defines a force tangential to a fluid element.
(true/false) correct answers False
The fluid will be accelerated if a pressure force is not equilibrated by a friction force.
(true/false) correct answers True
What is the most common unit of pressure in the English system?
a. Lbf/Lbm*in^2
b. Lbf/ft^2
c. Lbf/in^2 correct answers Lbf/in^2
The density of manometric fluid should be always large than the density of flowing fluid.
(true/false) correct answers True
The value of pressure can be negative on the absolute scale.
(true/false) correct answers False
The hydrostatic pressure depends only on height and density.
(true/false) correct answers True
Reynolds number allows to estimate:
a. Flow conditions/flow pattern
b. Velocity profile in pipes
, c. Fluid compressibilty
d. Shear stress distribution in a fluid correct answers Flow conditions/flow pattern
In Newtonian fluid one of the following statements is true:
a. Shear stress is proportional to shear rate
b. Shear stress is proportional to inverse of shear rate
c. Shear stress is a power function of shear rate correct answers Shear stress is proportional to
shear rate
A shear stress is always perpendicular to the flow direction.
(yes/no) correct answers No
Viscosity of a gas increases with increasing temperature.
(yes/no) correct answers Yes
The Hagen-Poiseuille equation describes turbulent fluid flow pressure drop.
(yes/no) correct answers No
The Newton's law of viscosity can be written only for laminar flow.
(yes/no) correct answers Yes
The shear stress is a function of axial position in cylindrical pipe under developed flow
conditions.
(yes/no) correct answers No
Under steady-state conditions the resulting force on any element of a fluid should be equal to
zero
(yes/no) correct answers Yes
No-slip conditions imply that:
a. velocity of the fluid at the system is equal to velocity of the wall
b. Fluid velocity does not change radially
c. velocity of fluid at the system wall is zero
d. Fluid is stationary anywhere inside the pipe correct answers velocity of the fluid at the system
is equal to velocity of the wall
What component of velocity exists when you mix sugar in your morning coffee?
a. v(theta)
b. vr
c. vz correct answers v(theta)
Mechanical Energy Balance can be reduced to Bernoulli's equation under assumption:
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