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second half book 3 > CHAPTER 8 > Flashcards

CHAPTER 8 Flashcards

1
Q

The unit of heat in the SI system is the:
Select one:

A.
Horse power (hp)

B.
Volt (V)

C.
Watt (W)

D.
Joule (J)

E.
Newton (N)

A

D.
Joule (J)

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2
Q

The transfer of thermal energy usually applicable to solids from molecule to molecule is called:
Select one:

A.
Exothermic

B.
Conduction

C.
Radiation

D.
Endothermic

E.
Convection

A

B.
Conduction

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3
Q

The standard _____ is used to obtain Relative Density when comparing other solids and liquids.
Select one:

A.
Air

B.
Carbon dioxide

C.
Water

D.
Alcohol

E.
Oil

A

C.
Water

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4
Q

The units of temperature measurement are degrees in the SI system the scale used for normal measurement is:
Select one:

A.
Kelvin

B.
Rankin

C.
Celsius

D.
Fahrenheit

E.
Absolute

A

C.
Celsius

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5
Q

The transfer of thermal energy in straight lines not affected by gases or wind movement and heats the objects struck is termed:
Select one:

A.
Conduction

B.
Radiation

C.
Convection

D.
Endothermic

E.
Exothermic

A

B.
Radiation

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6
Q

The heat that is added to or removed from a substance and causes the substances temperature to change is called:
Select one:

A.
Latent heat

B.
Entropy

C.
Sensible heat

D.
Enthalpy

E.
Super temperature

A

C.
Sensible heat

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6
Q

The specific heat of ice is equal to:
Select one:

A.
2257 kJ/kg

B.
4.183 kJ/kg/°C

C.
2.135 kJ/kg/°C

D.
2.093 kJ/kg/°C

E.
335 kJ/kg

A

C.
2.135 kJ/kg/°C

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6
Q

The heat that is added to or removed from a substance and causes a change in state of a substance is called:
Select one:

A.
Sensible heat

B.
Enthalpy

C.
Super temperature

D.
Latent heat

E.
Entropy

A

.
Latent heat

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6
Q

The Fahrenheit scale considers the boiling point of water to be:
Select one:

A.
32°

B.
0°

C.
200°

D.
212°

E.
100°

A

D.
212°

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6
Q

The term used to describe the solid-to-fluid change of state during the addition of heat is:
Select one:

A.
Latent heat of plasma

B.
Latent heat of solidification

C.
Latent heat of evaporation

D.
Latent heat of condensation

E.
Latent heat of fusion

A

E.
Latent heat of fusion

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6
Q

On the Kelvin scale 0 K (absolute zero) is equal to _____ on the Celsius scale.
Select one:

A.
0°

B.
-273°

C.
-32°

D.
212°

E.
-460°

A

B.
-273°

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7
Q

The term used to describe the fluid-to-gas change of state during the addition of heat is:
Select one:

A.
Latent heat of fusion

B.
Latent heat of solidification

C.
Latent heat of condensation

D.
Latent heat of plasma

E.
Latent heat of evaporation

A

E.
Latent heat of evaporation

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7
Q

The term used to describe the fluid-to-solid change of state during the extraction of heat is:
Select one:

A.
Latent heat of condensation

B.
Latent heat of evaporation

C.
Latent heat of solidification

D.
Latent heat of plasma

E.
Latent heat of fusion

A

C.
Latent heat of solidification

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8
Q

As heat is added to a liquid its temperature will:
Select one:

A.
Remain unchanged

B.
Increase continually

C.
Decrease continually

D.
Remain constant during a phase change

E.
Remain the same

A

D.
Remain constant during a phase change

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8
Q

The Celsius scale considers the melting point of ice to be:
Select one:

A.
0°

B.
32°

C.
200°

D.
212°

E.
100°

A

A.
0°

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8
Q

The term used to describe the gas-to-fluid change of state during the extraction of heat is:
Select one:

A.
Latent heat of plasma

B.
Latent heat of solidification

C.
Latent heat of fusion

D.
Latent heat of condensation

E.
Latent heat of evaporation

A

D.
Latent heat of condensation

8
Q

The amount of length increase of a material depends on the:
Select one:

A.
Method of construction

B.
Atmospheric pressure

C.
Relative humidity

D.
Temperature change

E.
Length of time exposed

A

D.
Temperature change

9
Q

Specific heat can be defined as the amount of heat required to raise 1 kg of a substance:
Select one:

A.
1°R

B.
10°F

C.
1°F

D.
10°C

E.
1°C

A

E.
1°C

9
Q

As the temperature of water drops to below 4°C:
Select one:

A.
Ice begins to form

B.
Its density remains unchanged

C.
It gains thermal energy

D.
It contracts

E.
It begins to expand

A

E.
It begins to expand

10
Q

Thermodynamics can be defined as the:
Select one:

A.
Movement of temperature

B.
Change of heat

C.
Movement of heat

D.
Movement of energy

E.
Change of temperature

A

C.
Movement of heat

11
Q

The specific heat of water is equal to:
Select one:

A.
2.135 kJ/kg/°C

B.
335 kJ/kg

C.
4.183 kJ/kg/°C

D.
2257 kJ/kg

E.
2.093 kJ/kg/°C

A

C.
4.183 kJ/kg/°C

12
Q

All substances - whether solid, liquid or gas - as heat is added or absorbed will:
Select one:

A.
Loose thermal energy

B.
Contract

C.
Expand

D.
Drop in temperature

E.
Change state

A

C.
Expand

13
Q

Heat will only move in:
Select one:

A.
One direction-from a high to a lower temperature

B.
From cold to hot

C.
One direction-from a low to a higher temperature

D.
From hot to hotter

E.
Both directions high to low and low to high temperature

A

A.
One direction-from a high to a lower temperature

14
Q

The latent heat of evaporation of water is equal to:
Select one:

A.
335 kJ/kg

B.
2257 kJ/kg

C.
2.135 kJ/kg/°C

D.
2.093 kJ/kg/°C

E.
4.183 kJ/kg/°C

A

B.
2257 kJ/kg

15
Q

The transfer of thermal energy applicable to fluids and gases by the action of movement or flow is termed:
Select one:

A.
Radiation

B.
Convection

C.
Endothermic

D.
Conduction

E.
Exothermic

A

B.
Convection

16
Q

On the Rankine scale 0° (absolute zero) is equal to _____ on the Fahrenheit scale.
Select one:

A.
-32°

B.
0°

C.
-460°

D.
-273°

E.
212°

A

C.
-460°

17
Q

The Celsius scale considers the boiling point of water to be:
Select one:

A.
32°

B.
212°

C.
0°

D.
200°

E.
100°

A

E.
100°

18
Q

If the pressure is 100 kPa absolute the 1 litre of water will become about _____ litres of steam.
Select one:

A.
460

B.
1695

C.
2257

D.
335

E.
129 000

A

B.
1695

19
Q

Ice, once formed:
Select one:

A.
Expands as it loses temperature

B.
Contracts as it loses temperature

C.
Cannot loose any more heat

D.
Cannot gain any more heat

E.
Expands as it gains temperature

A

A.
Expands as it loses temperature

20
Q

If more heat is continuously added to steam at 100°C the temperature will increase producing _____ steam.
Select one:

A.
Superheated

B.
Over heated

C.
Enthalpy

D.
Entropy

E.
Hot

A

A.
Superheated

21
Q
A

second half book 3 (9 decks)

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