FLUID STATICS

Question 1

Fluid Statics

Answer 1

Branch of fluid mechanics that studies fluids at rest.

Question 2

Pressure

Answer 2

Force exerted per unit area on a surface.

Question 3

Hydrostatic Pressure

Answer 3

Pressure exerted by a fluid at rest due to its weight.

Question 4

Pascal’s Law

Answer 4

Pressure applied to an enclosed fluid is transmitted equally in all directions.

Question 5

Absolute Pressure

Answer 5

Pressure relative to a perfect vacuum.

Question 6

Gauge Pressure

Answer 6

Pressure relative to atmospheric pressure.

Question 7

Atmospheric Pressure

Answer 7

Pressure exerted by the weight of the atmosphere.

Question 8

Manometer

Answer 8

Device used to measure pressure using liquid columns.

Question 9

Barometer

Answer 9

Instrument measuring atmospheric pressure.

Question 10

Density

Answer 10

Mass per unit volume of a fluid.

Question 11

Specific Weight

Answer 11

Weight per unit volume of fluid.

Question 12

Specific Gravity

Answer 12

Ratio of a fluid’s density to water’s density.

Question 13

Compressibility

Answer 13

Measure of change in volume due to pressure.

Question 14

Bulk Modulus

Answer 14

Ratio of pressure change to relative volume change.

Question 15

Hydrostatic Force

Answer 15

Total force exerted by a static fluid on a surface.

Question 16

Center of Pressure

Answer 16

Point where total hydrostatic force acts.

Question 17

Buoyancy

Answer 17

Upward force exerted by a fluid on an immersed body.

Question 18

Archimedes’ Principle

Answer 18

Buoyant force equals the weight of displaced fluid.

Question 19

Metacenter

Answer 19

Point where buoyant force acts when body tilts slightly.

Question 20

Metacentric Height

Answer 20

Distance between center of gravity and metacenter indicating stability.

Question 21

Stability of Floating Body

Answer 21

Behavior of a floating body when displaced.

Question 22

Pressure Prism

Answer 22

Graphical representation of pressure distribution over a submerged surface.

Question 23

Surface Tension

Answer 23

Force acting on a liquid surface due to molecular attraction.

Question 24

Capillary Rise

Answer 24

Upward movement of liquid in narrow tubes.

Question 25

Capillary Depression

Answer 25

Downward movement of non-wetting liquids.

Question 26

Vapor Pressure

Answer 26

Pressure exerted by vapor in equilibrium with liquid.

Question 27

Cavitation

Answer 27

Formation and collapse of vapor bubbles due to low pressure.