Hydraulics and Fluid Mechanics

A. 10 kg
B. 100 kg
C. 1000 kg
D. 1 kg
E. 10,000 kg

A. mass
B. momentum
C. energy
D. work
E. force

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

A. comparing two identical equipments
B. designing models so that the result can be converted to prototypes
C. comparing similarity between design and actual equipment
D. hydraulic designs
E. performing acceptance tests

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. ratio of inertial force to force due to viscosity
B. ratio of inertial force to force due to gravitation
C. ratio of inertial force to force due to surface tension
D. all the four ratios of inertial force to force due to viscosity, gravitation, surface tension, and elasticity

A. specific gravity of liquids
B. specific gravity of solids
C. specific gravity of gases
D. relative humidity
E. density

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

A. crest
B. nappe
C. sill
D. weir top
E. contracta

A. wake
B. drag
C. lift
D. boundary layer
E. aerofoil section