Surface tension has the units of :
A. newtons/m
B. newtons/m
C. new tons/m
D. newtons
The increase of temperature results in :
A. increase in viscosity of gas
B. increase in viscosity of liquid
C. decrease in viscosity of gas
D. decrease in viscosity of liquid
In a static fluid :
A. resistance to shear stress is small
B. fluid pressure is zero
C. linear deformation is small
D. only normal stresses can exist
E. viscosity is nil
A balloon lifting in air follows the following principle :
A. law of gravitation
B. Archimedes principle
C. principle of buoyancy
D. all of the above
E. continuity equation
The bulk modulus of elasticity with increase in pressure :
A. increases
B. decreases
C. remains constant
D. increases firs
A fluid in equilibrium can’t sustain :
A. tensile stress
B. compressive stress
C. shear stress
D. bending stress
The stress-strain relation of the newton eon fluid is :
A. linear
B. parabolic
C. hyperbolic
D. inverse type
Surface tension has the units of :
A. newtons/m
B. newtons/m
C. new tons/m
D. newtons
E. newton m
A perfect gas :
A. has constant viscosity
B. has zero viscosity
C. is incompressible
D. none of the above
