An electron will not be ejected - Answers If the energy of the incident photon is less than the work function:
Increases - Answers For supersonic flow, the pressure of fluid must decrease as the fluid flow area of the duct.
Dynamic viscosity / kinematic viscosity - Answers Density in term of visc...
An electron will not be ejected - Answers If the energy of the incident photon is less than the work
function:
Increases - Answers For supersonic flow, the pressure of fluid must decrease as the fluid flow area of the
duct.
Dynamic viscosity / kinematic viscosity - Answers Density in term of viscosity is:
Shape - Answers Liquids and gases take the following characteristic(s) of their contents.
C. A and B above are correct - Answers Alcohol finds use in manometers as:
A. It provides a suitable meniscus for the inclined tube
B. Its density being less can provide longer length for a pressure difference, thus more accuracy can be
obtained
C. A and B above are correct
D. Cheap and easily available
D. Shear stress is proportional to rate of strain - Answers Which of the following statements about a
Newtonian fluid is most accurate?
A. Shear stress is proportional to strain
B. Viscosity is zero
C. Shear stress is multi - valued
D. Shear stress is proportional to rate of strain
When there is no motion of one fluid layer relative to an adjacent layer - Answers The normal stress is
the same in all directions at a point in fluid:
C. It is a shear stress - Answers Which of the following is not a characteristic of fluid pressure?
A. It is the same in all directions at a point in the fluid
B. Its acts normal to a surface
C. It is a shear stress
D. It is linear with depth
First slowly and then steeply - Answers The length of mercury column at a place at an altitude will
change with respect to that at ground in:
, D. Biot number - Answers All of the following dimensionless parameters are applicable to fluid flow
problems except the _______.
A. Reynolds number
B. Froude number
C. Mach number
D. Biot number
D. all of the above - Answers Mass density of liquid (ρ) is given by which of the following?
A. Ρ = Mass / volume
B. Ρ = metric slug / 𝑚2
C. Ρ = kg 𝑠𝑒𝑐2 / 𝑚4
D. all of the above
D. Thermal conductivity - Answers the speed of sound in all fluid is most closely related to all of the
following properties except________.
A. Compressibility
B. Density
C. Bulk module
D. Thermal conductivity
D. All of the above - Answers Under which condition, the specific weight of water is 1000 kg/ 𝑚3?
A. At normal pressure of 760 mm
B. At 4 C
̊ temperature
C. At mean sea level
D. All of the above
D. hysteresis - Answers All of the following can be characteristics of fluids except_________.
A. kinematic viscosity
B. surface tension
C. bulk modulus
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