A. cannot be compressed
B. occupy definite volume
C. are not affected by change in pressure and temperature
D. GO are not viscous
E. none of the above
Related Mcqs:
- The bulk modulus of elasticity __________________?
A. has the dimensions of 1/pressure
B. increases with pressure
C. is large when fluid is more compressible
D. is independent of pressure and viscosity
E. is directly proportional to flow. - The ratio of absolute viscosity to mass density is known as____________________?
A. specific viscosity
B. viscosity index
C. kinematic viscosity
D. coefficient of viscosity
E. coefficient of compressibility - The value of mass density in kgsecVm4 for water at 0°C is_______________?
A. 1
B. 1000
C. 100
D. 101.9
E. 91 - Surface tension has the units of____________________?
A. newtons/m
B. newtons/m
C. new tons/m
D. newtons
E. newton m - The resultant upward pressure of the fluid on an immersed body is called__________________?
A. upthrust
B. buoyancy
C. center of pressure
D. all the above are correct
E. none of above is correct - Capillary action is due to the__________________?
A. surface tension
B. cohesion of the liquid
C. adhesion of the liquid molecules and the molecules on the surface of a solid
D. all of the above
E. none of the above - Mercury is often used in barometer because _________________?
A. it is the best liquid
B. the height of barometer will be less
C. its vapour pressure is so low that it may be neglected
D. both B. and C.
E. it moves easily - Buoyant force is___________________?
A. resultant force acting on a floating body
B. equal to the volume of liquid displaced
C. force necessary to keep a body in equilibrium
D. the resultant force on a body due to the fluid surrounding it
E. none of the above - Uniform flow occurs when____________________?
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 uniform¬ly along length
E. flow occurs at constant fate - Mach number is significant in___________________?
A. supersonics, as with projectiles and jet propulsion
B. full immersion or completely enclosed flow, as with pipes, aircraft wings, nozzles etc.
C. simultaneous motion through two fluids where there is a surface of dis-continuity, gravity force, and wave making effects, as with ship’s hulls
D. all of fhe above
E. none of the above
