Related Questions

In which type of fluid flow, the velocity of flow of fluid changes from point to point in the fluid at any instant?
A Rotational
B Unsteady
C Turbulent
D Non-uniform
Whenever some external system of forces acts on a body, it undergoes some deformation. As the body undergoes some deformation, it sets up some resistance to the deformation. This resistance per unit area to deformation, is called
A Strain
B Stress
C Pressure
D Modulus of elasticity
If cohesion between molecules of a fluid is greater than adhesion between fluid and glass, then the free level of fluid in a dipped glass tube will be
A Higher than the surface of liquid
B The same as the surface of liquid
C Lower than the surface of liquid
D Unpredictable
The __________ of the fluid contained in the temperature sensing element (i.e., bulb) of filled system thermometers changes with change in temperature.
A Pressure
B Volume
C Viscosity
D All of the above
When the momentum of one fluid is used for moving another fluid, such a device is called a/an
A Jet pump
B Blower
C Acid egg
D None of these
Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the
A Existence of thermal boundary layer
B Temperature gradient produced due to density difference
C Buoyancy of the bubbles produced at active nucleation site
D None of these
Mode of heat transfer in which the fluid moves under the influence of changes in fluid pressure produced by external work is called
A Radiation
B Natural convection
C Forced convection
D Conduction
When the load on the engine increases, it becomes necessary to increase the supply of working fluid and when the load decreases, less working fluid is required. The supply of the working fluid to the engine is controlled by a
A D-slide valve
B governor
C Meyer’s expansion valve
D flywheel
In turbines, the fluid undergoes a continuous steady flow process and the speed of flow is
A Low
B Very low
C High
D Very high
The process of heat transfer from one particle of the fluid to another by the actual movement of the fluid particles caused by some mechanical means, is known as
A Conduction
B Free convection
C Forced convection
D Radiation

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