Test Viewer

Where available, click ^[1] for additional information.

Absorption

A reciprocating compressor is a __________ a gas and deliver it at high pressure.

positive-replacement machine that uses a piston to compress
positive-displacement machine that uses a piston to compress
positive-replacement machine that uses a piston to expand
positive-displacement machine that uses a piston to expand

Circulation Systems

A reciprocating compressor is a __________ a gas and deliver it at high pressure.

Commercial Systems

An evaporative condenser __________.

is a device that is used for cooling the air with the process of water.
is a device that is used for cooling the air with the process of heat.
is a device that is used for cooling the air with the process of evaporation.
is a device that is used for cooling the air with the process of gas.

Condensers and Compressors

Compressor capacity reduction device always reduces compressor capacity __________.

using a hot gas bypass
as the refrigerant load dictates
reducing compressor speed
reducing compressor horsepower proportionately

Condensers, Compressors, Oil, Gas, Crankcase, Discharging and Valves

Compressor capacity reduction device always reduces compressor capacity __________.

using a hot gas bypass
as the refrigerant load dictates
reducing compressor speed
reducing compressor horsepower proportionately

Condensers, Compressors, Water, Gas and Temperatures

What is the purpose of a condenser?

Store liquid refrigerant
Remove heat from the refrigerant
Add heat to the refrigeration system
Remove water from the refrigeration system

Controls, Servicing Tools, Refrigeration Accessories and Installations

A high pressure gauge is also referred to as a __________ gauge.

complex
compliant
compound
contained

Different Types of Condensers, Compressors, Pressure and Cooling Systems

What is the purpose of a condenser?

Store liquid refrigerant
Remove heat from the refrigerant
Add heat to the refrigeration system
Remove water from the refrigeration system

Employees, Contractors, Insurance, Job Safety

Utility companies will mark __________.

all utilities
owners utilities
contractor utilities
their own utilities

Equipment and Pressure Temputure

Ambient Temperature =

The temperature in a room, or the temperature which surrounds an object under discussion.
The temperature in a refrigerator.
The temperature in a freezer.
The temperature of the human body.

Evaporator and Metering Devices,Tempentures, TEV, TXV and Valves

The evaporator absorbs heat from the air or brine, because the liquid refrigerant entering the evaporator __________.

boils to a low pressure gas
boils to a high pressure gas
has a lower temperature than the air or brine
has a higher temperature than the air or brine

Evaporator and Metering Devices

The evaporator absorbs heat from the air or brine, because the liquid refrigerant entering the evaporator __________.

boils to a low pressure gas
boils to a high pressure gas
has a lower temperature than the air or brine
has a higher temperature than the air or brine

Miscellaneous

Diode/Diac

A diode that conducts current only after its break over voltage, VBO, has been reached periodically.
A diode that conducts current only after its break over voltage, VHO, has been reached momentarily.
A diode that constructs current only after its break over voltage, VBO, has been reached momentarily.
A diode that conducts current only after its break over voltage, VBO, has been reached momentarily.

Piping and Combustion

Butane boils at __________ degrees F at atmospheric pressure.

30
31
32
33

Refrigerant, Freon, Variety of Brine and Leaks

Which refrigerant is in Group 2?

Ethane
Isobutane
Methyl chloride
Dichlorodifluoromethane (F-12)

Refrigerant, Toxic Chemicals and Mixing Chemicals

Undesirable refrigerant characteristics are __________.

non-flammable and non-toxic
high latent heat and low boiling point
low critical temperature and high freezing point
high critical temperature and low freezing point

Refrigeration Systems/Design

Regarding cascade refrigerating systems, in industrial processes where objects must be cooled to temperatures below -__________ degrees F (46 degrees C), cascade systems are often used.

40
50
60
70

Refrigeration Systems and Design

Regarding cascade refrigerating systems, in industrial processes where objects must be cooled to temperatures below -__________ degrees F (46 degrees C), cascade systems are often used.

40
50
60
70

Refrigration Theory

What componet absorbs heat into the refrigerant?

Condenser
Evaporator
Compressor
Metering device

Safety, Asbestos, Code of Federal Regulations, Title 29, Part 1926 and Fire Extinguishers

OSHA Definition: Asbestos includes chrysotile, amosite, crocidolite, tremolite asbestos, anthophyllite asbestos, actinolite asbestos, and any of these minerals that has been chemically treated and/or altered. For purposes of this standard, "asbestos" includes __________.^[1]

PMAC
CAMP
PCAM
PACM

Testing Symbols and Refrigerant Oil

M = mega = __________.

10,000
100,000
1,000,000
1,000,000,000

Troubleshooting, Startup, Testing and Maintenance

Condenser and evaporator cooling water may be tested using what test?

Comparator
Litmus paper
Alkacid paper
Any of the above

USA Dig Alert

The Hawaii 811 markings are valid __________.^[1]

for 7 days
for 28 days
for 1 year
forever

Venting and Service

Lint and dust in the motor will prevent proper __________.

air circulation
heating
cooling
freezing