Related Questions

If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface tempeature follows __________ law.
A Parabolic
B Hyperbolic
C Linear
D Logarithmic
If the thermal conductivity of a wall material is independent of temperature, the steady state temperature distribution in the very large thin plane wall having steady, uniform surface temperature follows __________ law.
A Hyperbolic
B Parabolic
C Linear
D Logarithmic
Steady non-uniform flow is exemplified by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Unsteady uniform flow is represented by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Unsteady non-uniform flow is represented by flow through a/an
A Long pipe at constant rate
B Long pipe at decreasing rate
C Expanding tube at increasing rate
D Expanding tube at constant rate
Select the correct practical example of steady non-uniform flow.
A Motion of water around a ship in a lake
B Motion of river around bridge piers
C Steadily decreasing flow through a reducing section
D Steadily increasing flow through a pipe
Water flows into an empty 64-gallon drum through pipe A and flows out through pipe B. If the rate of flow through A is 2 gallons/hour, how many gallons per hour must flow out through pipe B so that the drum is full in exactly 96 hours?
A 3/8
B 1/2
C 2/3
D 4/3
A flow through a long pipe at decreasing rate is called __________ uniform flow.
A Steady
B Unsteady
C Both A and B
D None of these
An example of unsteady non uniform flow is the flow of liquid under pressure through a
A Tapering pipe at constant flow rate
B Tapering pipe at either decreasing or increasing flow rate
C Long pipeline of constant diameter
D None of these
The depth ‘d’ below the free surface at which the point velocity is equal to the average velocity of flow for a uniform laminar flow with a free surface, will be (where D is the depth of flow)
A 0.423 D
B 0.577 D
C 0.223 D
D 0.707 D

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