Deck 2: Fluid Mechanics

Question 1

The ____________________ of water is generally accepted as 62.4lb/ft3.

Answer 1

specific weight

Question 2

All fluids have the same viscosity.

Answer 2

False

Question 3

Viscosity can be described as a fluid's resistance to ____________________ stress.

Answer 3

shear

Question 4

The specific weight of a liquid is the ratio of its specific weight to that of pure water at a standard temperature.

Question 5

Specific weight is defined as ____.

A)weight per unit volume
C)weight per unit time
B)volume per unit mass
D)volume per unit weight

Question 6

Both density and specific weight generally vary with the temperature of a material.

Question 7

A sliding plate viscometer measures absolute ____.

A)density
C)stress
B)volume
D)viscosity

Question 8

Density refers to the ability of fluid molecules to flow past each other.

Question 9

Adhesion enables water to adhere to another body.

Question 10

The three forms of matter are generally distinguished from one another by ____.

A)color
C)bonds between molecules
B)heat of molecules
D)properties of molecules

Question 11

Density is defined as ____.

A)volume per unit weight
C)weight per unit volume
B)mass per unit volume
D)mass per unit time

Question 12

Water is assumed to be ____________________ for most hydraulic problems.

Question 13

_____________________ enables water to resist a slight tensile stress.

Question 14

___________________ is a property of liquids in which the liquid rises up or is depressed down a thin tube.

Question 15

Kinematic viscosity is defined as ____.

A)absolute viscosity divided by density
B)density divided by absolute viscosity
C)absolute viscosity multiplied by density
D)absolute viscosity divided by two