Related Questions

What is the change in the angular momentum of a system as per the Law of Conservation of Angular momentum, if the total external torque acting is zero?
A Remains constant
B Becomes zero
C Increases exponentially
D None 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
When a shaft is subjected to combined twisting moment (T) and bending moment (M), then the equivalent twisting moment is equal to
A $$\frac{1}{2}\sqrt {{{\text{M}}^2} + {{\text{T}}^2}} $$
B $$\sqrt {{{\text{M}}^2} + {{\text{T}}^2}} $$
C $$\frac{1}{2}\left( {{\text{M}} + \sqrt {{{\text{M}}^2} + {{\text{T}}^2}} } \right)$$
D $${\text{M}} + \sqrt {{{\text{M}}^2} + {{\text{T}}^2}} $$
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
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
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
A fluid which has a linear relationship between the magnitude of applied shear-stress and the resulting rate of deformation is called a/an __________ fluid.
A Newtonion
B Non-Newtonion
C Ideal
D Incompressible
A fluid whose apparent viscosity increases with shear rate is termed as the __________ fluid.
A Newtonion
B Viscous
C Dilatant
D Non-viscous
Rate of change of momentum is
A Area
B Pressure
C Force
D Velocity
Rate of change of angular momentum is equal to
A Force
B Torque
C Linear momentum
D Impulse

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