Part 1: Introduction and Review

Question 1

What is a Fluid?

Answer 1

A substance that deforms continuously when acted upon by a shearing stress of any magnitude

Question 2

How many fluid types are there? What are they?

Answer 2

Two. Gas and Liquid

Question 3

True or False: Both gases and liquids experience “no slip” conditions.

Answer 3

True

Question 4

What is Specific Gravity?

Answer 4

The ratio of mass density of a fluid to that of water

Question 5

What is surface tension?

Answer 5

The intensity of the molecular attraction per unit length along any line in the surface of a liquid

Question 6

__________ is the use of fluid static principles for the measurement of fluid pressure

Answer 6

Manometry

Question 7

__________ is the study of motion without regard to forces causing motion

Answer 7

Kinematics

Question 8

What is the line tangent to velocity vectors throughout flow field?

Answer 8

Streamline

Question 9

The Continuity equation is a simplified statement of the law of ________________

Answer 9

Conservation of Mass

Question 10

Whats the difference between Local Acceleration and Convective Acceleration?

Answer 10

Local is the change in velocity with respect to time, while convective is with respect to position

Question 11

True or False: Acceleration can be considered only along a streamline

Answer 11

False, Acceleration can be considered both along the streamline and normal to the streamline

Question 12

What is Newton’s First Law?

Answer 12

Law of Inertia. An object at rest tends to stay at rest and an object in motion stays in motion with the same speed and same direction unless acted upon by another force.

Question 13

What is Newton’s Second Law?

Answer 13

F=ma, a force is equal to the change in momentum per change in time

Question 14

What is Newton’s Third Law?

Answer 14

For every action, there is an equal and opposite reaction

Question 15

What are the three causes of pressure variation?

Answer 15

• Gravity
• Acceleration
• Viscous Resistance

Question 16

True or False: Potential Flow deals With Gravity and Viscous Resistance?

Answer 16

False. Potential flow deals with Gravity and Acceleration

Question 17

True or False: Steady Flow has only Convective Acceleration

Answer 17

True

Question 18

Bernoulli’s equation is essentially a statement of the “ Law of _____________”

Answer 18

Law of Conservation of Mass, where mass can neither be created nor destroyed. Simply just changed from one form to another

Question 19

Piezometric head is the sum of _______

Answer 19

Pressure head and Elevation head

Question 20

What is the difference between a Pitot tube and a Piezometer?

Answer 20

The pitot tube measures Total head (p, z, v), While a piezometer measures only static (pressure) head (p, z).

Question 21

What is the difference between Pitot tube and Pitot Static?

Answer 21

Pitot static measures only Velocity head, while the pitot tube measures the total head.

Question 22

A free vortex has which type of flow?

Answer 22

irrotational. An example of this would be a Tornado or a Bath tub

Question 23

A __________ is a given quantity of matter, which may move, flow and interact with its surroundings

Answer 23

System

Question 24

What is a Control Volume?

Answer 24

A region (or Volume) in space through which a fluid may flow

Question 25

What is a Control Surface?

Answer 25

The exterior boundary of a control volume

Question 26

What is an Extensive Property?

Answer 26

a characteristic of the total mass of the system. Symbol is a Capital letter. Ex. Mass, Momentum, Energy

Question 27

What is an Intensive Property?

Answer 27

a characteristic describing the condition of the fluid. Symbol is often a Greek letter.

Question 28

Control Volume is associated with what Theory?

Answer 28

Reynolds Transport Theorem

Question 29

What are the two types of External forces?

Answer 29

Body Forces (weight) and Surface Forces (friction)

Question 30

What are the three types of Energy?

Answer 30

Potential. Kinetic. Internal. (KIP)

Question 31

What are the two types of Work?

Answer 31

Flow Work (related to fluid pressure). 
Shaft Work (Pump, Turbine)