The normal stress in a fluid will be constant in all directions at a point only if__________________________?

A. it is incompressible
B. it has uniform viscosity
C. it has zero viscosity
D. it is frictionless

When the flow parameters at any given instant remain same at every point, then flow is said to be___________________?

A. Quasi static
B. Steady state
C. Laminar
D. Uniform

For very great pressures, viscosity of moss gases and liquids__________________?

A. Remains same
B. Increases
C. Decreases
D. Shows erratic behavior

An object having 10 kg mass weighs 9.81kg on a spring balance. The value of ‘g’ at this place is _________________?

A. 10m/sec2
B. 9.81 m/sec2
C. 10.2/m sec
D. 9.75 m/sec2

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

Viscosity of water in comparison to mercury is_________________?

A. Higher
B. Lower
C. Same
D. Higher/lower depending on temperature

The value of the coefficient of compressibility for water at ordinary pressure and temperature in kg/cm is equal to_________________?

A. 1000
B. 2100
C. 2700
D. 10,000

Units of surface tension are____________________?

A. Energy/unit area
B. Distance
C. Both of the above
D. It has no units

The property of fluid by virtue of which it offers resistance to shear is called________________?

A. Surface tension
B. Adhesion
C. Cohesion
D. Viscosity

Alcohol is used in manometer, because____________________?

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