Category: Hydraulics and Fluid Mechanics

A. the direction and magnitude of the velocity at all points are identical
B. the velocity of successive fluid par-ticles, at any point, is the same at suc-cessive 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
E. velocity, depth, pressure, etc. change from point to point in the fluid flow

Choose the wrong statement ?

A. its vapour pressure is low
B. it provides suitable meniscus for the inclined tube
C. its density is less
D. it provides longer length for a given pressure difference
E. it provides accurate readings.

A. the pressure at any location reaches an absolute pressure equal to the saturated vapour pressure of the liquid
B. pressure becomes more than critical pressure
C. flow is increased
D. pressure is increased
E. none of the above

A. The horizontal component of the hydro-static force on any surface is equal to the normal force on the vertical projection of the surface
B. The horizontal component acts through the center of pressure for the vertical projection
C. The vertical component of the hydrostatic force on any surface is equal to the weight of the volume of the liquid above the area
D. he vertical component passes through the center of pressure of the volume
E. Center of pressure acts at a greater depth than center of gravity

A. at norma] pressure of 760 mm
B. at 4°C temperature
C. at mean sea level
D. all the above
E. none of the above.

A. force of adhesion
B. force of cohesion
C. force of friction
D. force of diffusion
E. none of die above

A. high velocity
B. high pressure
C. weak material
D. low pressure
E. low viscosity

A. at e.g. of body
B. at center of pressure
C. vertically upwards
D. at metacentre
E. vertically downwards

A. is steady
B. is one dimensional
C. velocity is uniform at all the cross sec-tions
D. all of the above
E. none of the above