Deck 22: Energy and Temperature, Piping Expansion, Heat Transfer, Insulation, Humidity and Condensation

Question 1

The temperature at which moisture in the air will begin to condense is called the _________.

A)wet-bulb temperature
B)dry-bulb temperature
C)relative humidity
D)dew point

Answer 1

D

Question 2

Swing joints should be used on high-pressure lines to accommodate expansion.

Answer 2

False

Question 3

Which type of insulation is made of fiberglass or similar material and formed into tubular shapes for different pipe sizes and different wall thicknesses?

A)formed fibrous
B)blanket
C)foam
D)corrugated

Answer 3

A

Question 4

Plastic pipe should not be hung with supports that could abrade, cut, or distort the pipe.

Question 5

Which of the following describes materials that transfer heat quickly?

A)insulators
B)good conductors of heat
C)quick conductors of heat
D)none of the above

Question 6

Which of the following describes materials that do not transfer heat well?

A)insulators
B)poor conductors of heat
C)quick conductors of heat
D)none of the above

Question 7

Which type of insulation is made of asbestos paper in alternate smooth and corrugated layers?

A)formed fibrous
B)blanket
C)foam
D)corrugated

Question 8

Which of the following is the form of heat that changes the state of ice to water?

A)kinetic energy
B)latent heat of vaporization
C)latent heat of fusion
D)sensible heat

Question 9

____________________ is the ability to do work.

Question 10

Temperature can be measured with which of the following?

A)glass tube thermometer
B)thermocouple
C)infrared thermometer
D)all of the above

Question 11

Which of the following is the amount of heat content, measured in BTUs per pound, in a substance usually compared to air at 0 ° F or water at 32 ° F?

A)convection
B)enthalpy
C)condensation
D)humidity

Question 12

Which type of insulation is produced by combining certain chemicals that react together in appropriate forms and releases a vaporous, bubbly product that takes the shape of the form?

A)formed fibrous
B)blanket
C)foam
D)corrugated

Question 13

Which of the following is heat added to raise water from freezing to the boiling point?

A)kinetic energy
B)latent heat
C)latent heat of fusion
D)sensible heat

Question 14

Which of the following is the amount of water vapor in the air, measured by weight in grains?

A)convection
B)enthalpy
C)condensation
D)humidity

Question 15

The measure of the amount of water in the air compared to the maximum amount of water the air could hold at the same temperature and pressure is called the __________.

A)wet-bulb temperature
B)dry-bulb temperature
C)relative humidity
D)dew point

Question 16

Pipe should be restrained on the ends to prevent noise.

Question 17

Which type of insulation is made of fibrous materials in various widths and in rolls of standard length?

A)formed fibrous
B)blanket
C)foam
D)corrugated

Question 18

The temperature of the air as read on a standard conventional thermometer is called the __________.

A)wet-bulb temperature
B)dry-bulb temperature
C)relative humidity
D)dew point

Question 19

What is heat energy that causes a change in state-solid to liquid or liquid to vapor?

A)kinetic energy
B)latent heat
C)latent heat of fusion
D)sensible heat

Question 20

Reflective surfaces can cause inaccurate readings on infrared thermometers.

Question 21

The numerical value that describes how much a certain material will expand for a certain temperature change is called the coefficient of ____________________.

Question 22

____________________ joints are mechanical devices arranged to permit the movement of connected piping.

Question 23

Items in motion contain ____________________ energy.

Question 24

Greater molecular activity results in ____________________ space between molecules.

Question 25

Pipe ____________________ when heated and ____________________ when cooled.