Chapter 4 - Properties of Water

Frage 1 von 20

1

One of the most important properties of water relevant to its use in hydronic systems is specific heat.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 2 von 20

1

If the material changes phase while absorbing heat, its temperature will change.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 3 von 20

1

The specific heat of water is high in comparison to other common materials. In fact, water has one of the highest specific heats of any known material.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 4 von 20

1

The difference in heat capacity of water versus that of air is the single greatest advantage of using water rather than air to convey heat.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 5 von 20

1

The density of water is not dependent on temperature.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 6 von 20

1

It is often necessary to determine the quantity of heat stored in a given amount of material that undergoes a specific temperature change. An equation known as the sensible heat quantity equation, can be used for this purpose.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 7 von 20

1

The quantity of heat absorbed or released from the material is expressed as Btu/hr.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 8 von 20

1

The rate of heat transfer into or out of the fluid stream in equations is expressed as Btu.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 9 von 20

1

The vapor pressure of a liquid is the minimum pressure that must be applied at the liquid's surface to prevent it from boiling.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 10 von 20

1

When hydronic systems are first filled with water, dissolved air is present in the water throughout the system.

Wähle eins der folgenden:

WAHR
FALSCH

Erklärung

Frage 11 von 20

1

The heat absorbed or released by a material while it remains in a single phase is called __________ heat.

Wähle eine der folgenden:

radiant
sensible
ambient
latent

Erklärung

Frage 12 von 20

1

If the material changes phase while absorbing heat, its temperature does not change. The heat absorbed in such a process is called ________ heat.

Wähle eine der folgenden:

radiant
sensible
ambient
latent

Erklärung

Frage 13 von 20

1

Although it is not a defined scientific term, it could be said that water is almost _________ times more "thermally concentrated" than air.

Wähle eine der folgenden:

3
35
350
3500

Erklärung

Frage 14 von 20

1

Hydronic system designers often need to know the __________ of heat transfer to or from a stream of water flowing through a device such as a heat source or heat emitter.

Wähle eine der folgenden:

rate
temperature
thermal mass
exact volume

Erklärung

Frage 15 von 20

1

The ___________ pressure of a liquid is the minimum pressure that must be applied at the liquid's surface to prevent it from boiling.

Wähle eine der folgenden:

surface
mean
vapor
systemic

Erklärung

Frage 16 von 20

1

The viscosity of a fluid is an indicator of its resistance to __________.

Wähle eine der folgenden:

flow
heat
combining
displacement

Erklärung

Frage 17 von 20

1

The amount of air that can exist in solution with water is strongly dependent on the water's temperature. As water is heated, its ability to hold air in solution __________.

Wähle eine der folgenden:

rapidly increases
remains constant
is viscosity dependent
rapidly decreases

Erklärung

Frage 18 von 20

1

When a quantity of liquid water is put under pressure, there is __________ change in its volume.

Wähle eine der folgenden:

a significant
very little
a corresponding
a formulaic

Erklärung

Frage 19 von 20

1

The total liquid flow rate entering any portion of a fluid-filled (non-leaking) piping assembly will __________ the total flow rate exiting that assembly.

Wähle eine der folgenden:

always equal
never equal
might equal
approximate

Erklärung

Frage 20 von 20

1

Incompressibility implies that liquids can exert tremendous pressure in any type of filled and closed container when they __________ due to heating.

Wähle eine der folgenden:

contract
dissolve
expand
vaporize

	Erstellt von Neil Revollo vor etwa 8 Jahre

Quiz #4

Chapter 4 - Properties of Water

Chapter 4 - Properties of Water

Frage 1 von 20

One of the most important properties of water relevant to its use in hydronic systems is specific heat.

Wähle eins der folgenden:

Erklärung

Frage 2 von 20

If the material changes phase while absorbing heat, its temperature will change.

Wähle eins der folgenden:

Erklärung

Frage 3 von 20

The specific heat of water is high in comparison to other common materials. In fact, water has one of the highest specific heats of any known material.

Wähle eins der folgenden:

Erklärung

Frage 4 von 20

The difference in heat capacity of water versus that of air is the single greatest advantage of using water rather than air to convey heat.

Wähle eins der folgenden:

Erklärung

Frage 5 von 20

The density of water is not dependent on temperature.

Wähle eins der folgenden:

Erklärung

Frage 6 von 20

It is often necessary to determine the quantity of heat stored in a given amount of material that undergoes a specific temperature change. An equation known as the sensible heat quantity equation, can be used for this purpose.

Wähle eins der folgenden:

Erklärung

Frage 7 von 20

The quantity of heat absorbed or released from the material is expressed as Btu/hr.

Wähle eins der folgenden:

Erklärung

Frage 8 von 20

The rate of heat transfer into or out of the fluid stream in equations is expressed as Btu.

Wähle eins der folgenden:

Erklärung

Frage 9 von 20

The vapor pressure of a liquid is the minimum pressure that must be applied at the liquid's surface to prevent it from boiling.

Wähle eins der folgenden:

Erklärung

Frage 10 von 20

When hydronic systems are first filled with water, dissolved air is present in the water throughout the system.

Wähle eins der folgenden:

Erklärung

Frage 11 von 20

The heat absorbed or released by a material while it remains in a single phase is called __________ heat.

Wähle eine der folgenden:

Erklärung

Frage 12 von 20

If the material changes phase while absorbing heat, its temperature does not change. The heat absorbed in such a process is called ________ heat.

Wähle eine der folgenden:

Erklärung

Frage 13 von 20

Although it is not a defined scientific term, it could be said that water is almost _________ times more "thermally concentrated" than air.

Wähle eine der folgenden:

Erklärung

Frage 14 von 20

Hydronic system designers often need to know the __________ of heat transfer to or from a stream of water flowing through a device such as a heat source or heat emitter.

Wähle eine der folgenden:

Erklärung

Frage 15 von 20

The ___________ pressure of a liquid is the minimum pressure that must be applied at the liquid's surface to prevent it from boiling.

Wähle eine der folgenden:

Erklärung

Frage 16 von 20

The viscosity of a fluid is an indicator of its resistance to __________.

Wähle eine der folgenden:

Erklärung

Frage 17 von 20

The amount of air that can exist in solution with water is strongly dependent on the water's temperature. As water is heated, its ability to hold air in solution __________.

Wähle eine der folgenden:

Erklärung

Frage 18 von 20

When a quantity of liquid water is put under pressure, there is __________ change in its volume.

Wähle eine der folgenden:

Erklärung

Frage 19 von 20

The total liquid flow rate entering any portion of a fluid-filled (non-leaking) piping assembly will __________ the total flow rate exiting that assembly.

Wähle eine der folgenden:

Erklärung

Frage 20 von 20