Heat pump Test 1 (Week 1)

The mode or cycle of the heat pump that removes ice from the outdoor coil is known as the ____________________ mode.

• heating

• defrost

• cooling

• off-cycle

Tags

NGSS.MS-PS3-3

In a heat pump, the indoor coil is always operating as the evaporator.

• True

• False

Tags

NGSS.MS-PS1-4

Pressure is defined as force per unit ___________, and is typically measured in __________.

• area, psi

• psi, area

• volume, psi

• circumference, inHg

The temperature at which condensation forms is called the _________________ temperature.

• dew point

• ambient

• dry-bulb

• wet-bulb

Tags

NGSS.MS-ESS2-4

The temperature of the air surrounding an object is known as the _______________ temperature.

• wet-bulb

• dew point

• ambient

• dry-bulb

Tags

NGSS.MS-PS1-4

________________ is actually the speed of the motion of the molecules in a substance or material.

• Temperature

• Thermodynamics

• Vacuum

• Pressure

Tags

NGSS.MS-PS1-4

What are the two major functions (processes that occur) of the evaporator?

• Superheat

• phase change

• defrost

• de super heat

• nothing

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Refrigeration can be described as ____.

• the process of making products cold

• the process of introducing heat to a location where it is not wanted

• the process of removing heat from a place where it is not wanted to a place where it makes little or no difference

• none of the above

Tags

NGSS.MS-PS3-3

Atmospheric pressure is _________ psi.

• 14.7

• 15.1

• 16.0

• 22.2

A CSR compressor (capacitor start capacitor run) is recommended when a system uses a capillary tube metering device because the pressure between the high and low sides do not equalize in the off cycle.

• True

• False