Mechanical Engineering MCQs

A. The direction and magnitude of the velocity at all points are identical
B. The velocity of successive fluid particles, at any point, is the same at successive periods of time
C. The magnitude and direction of the velocity do not change from point to point in the fluid
D. The fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane

A. one dimensional flow
B. uniform flow
C. steady flow
D. turbulent flow

A. The flow is steady
B. The flow is streamline
C. Size and shape of the cross section in a particular length remain constant
D. Size and cross section change uniformly along length

A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid particles, at any point, is the same at successive periods of time
C. the magnitude aricf direction of the velocity do not change from point to point in the fluid
D. the fluid particles move in plane or parallel planes and the streamline pat-terns are identical in each plane

A. Pascal law
B. Newton’s law of viscosity
C. Boundary layer theory
D. Continuity equation

A. Orifice plate
B. Venturi
C. Rotameter
D. Pitot tube

A. vertical line
B. horizontal line
C. inclined line with flow downward
D. inclined line with upward flow

A. Same
B. Higher
C. Lower
D. Lower/higher depending on weight of body

A. Only when the fluid is frictionless
B. Only when the fluid is incompressible and has zero viscosity
C. When there is no motion of one fluid layer relative to an adjacent layer
D. Irrespective of the motion of one fluid layer relative to an adjacent layer

A. Pressure in pipes, channels etc.
B. Atmospheric pressure
C. Very low pressure
D. Difference of pressure between two points