Mechanical 3rd Semester 2025-26

Which property of fluid represents resistance to flow?

• Surface tension

• Viscosity

• Cohesion

• Compressibility

Specific gravity is defined as the ratio of:

• Density of fluid to density of water

• Mass of fluid to volume of water

• Weight of fluid to weight of water

• Volume of fluid to volume of water

The SI unit of surface tension is:

• N/m

• N/m²

• N·s/m²

• Pa·s

A fluid that has no viscosity is called:

• Real fluid

• Superfluid

• Ideal fluid

• Newtonian fluid

The bulk modulus of a fluid is a measure of its:

• Compressibility

• Density

• Elasticity

• Surface tension

Which of the following is dimensionless?

• Density

• Viscosity

• Specific gravity

• Pressure

A Newtonian fluid is defined as one which:

• Has constant viscosity

• Obeys Newton's law of viscosity

• Has no shear stress

• Has zero density

The property which allows liquid to rise or fall in a capillary tube is:

• Adhesion

• Cohesion

• Surface tension

• Compressibility

Which of the following measures atmospheric pressure?

• Piezometer

• Bourdon gauge

• Barometer

• Micromanometer

Differential manometer measures:

• Absolute pressure

• Gauge pressure

• Difference of pressure between two points

• Negative pressure