Terminal Tractor Part 4

Question 1

What does an Infrared Thermometer compare to give a temperature reading?

Answer 1

The heat emitted from the component emits more IR Rays than the ambient air.

Example sentence: It compares these readings to give you a temperature reading.

Question 2

What is the recommended distance for an Infrared Thermometer from the component?

Answer 2

Depends on Manufacturer, the one below is 12”. Look for hate or rov riela of view specifications to determine.

Question 3

Is R134a heavier or lighter than air?

Answer 3

About 3 times heavier!

Example sentence: Is R134a heavier, or lighter than air?

Question 4

How does an electronic leak detector find a leak?

Answer 4

Ultrasonic(Sound), Meas

Question 5

What gases are not contained in 1234yf refrigerant?

Answer 5

Gases/Chlorine/Fl ney used in crc, Hre, and HEFC Refrigerants. (R12, R134a R

Question 6

What is the purpose of the blower motor in the evaporator?

Answer 6

The blower motor blows warm air over the cold evaporator coil.

Question 7

Where is the condenser mounted?

Answer 7

The condenser is a heat exchanger, mounted in front of the radiator, and CAC.

Question 8

What must a refrigerant have to achieve the absorption and release of heat?

Answer 8

To achieve the absorption and release of heat a refrigerant must have a very low boiling point.

Question 9

What is the purpose of O-Rings in A/C systems?

Answer 9

When replacing components, always install new O-rings of the same ID and OD.

Question 10

How does the TXV divide the A/C System?

Answer 10

The TXV divides the A/C System. A high pressure liquid enters, low pressure liquid exits into the evaporator.

Question 11

What type of drive does the compressor have?

Answer 11

Belt Driven

Question 12

What divides the A/C System?

Answer 12

The TXV

A high pressure liquid enters, low pressure liquid exits into the evaporator.

Question 13

What indicates that the TXV is functional?

Answer 13

When the low side pressure gauge is “wagging” indicating opening/closing.

Example sentence: You can see the TXV is functional when the low side pressure gauge is “wagging” indicating opening/closing.

Question 14

What component releases heat when changing from vapor to liquid?

Answer 14

Condenser

Substances release heat when changing from vapor to liquid. Which component does this occur in? Condenser

Question 15

What is the purpose of the Receiver-Dryer?

Answer 15

Removes moisture, contaminants, and stores refrigerant.

Example sentence: the pressure liger enters the Recan, which absorbs moisture in the system, up to about 2 tablespoons.

Question 16

What is the main requirement of the Clean Air Act of 1990 for Technicians servicing A/C systems?

Answer 16

To be certified to handle and purchase refrigerant.

Also requires that refrigerant handling equipment be certified for use.

Question 17

What is the main concern of the Safety guidelines?

Answer 17

Hazards

Safety, Hazards, Injury, Employees, Leading

Question 18

What is required for technicians servicing A/C systems for hire?

Answer 18

To be certified to handle and purchase refrigerant.

Example sentence: Technicians must be certified to handle and purchase refrigerant when servicing A/C systems for hire.

Question 19

What is required for refrigerant handling equipment?

Answer 19

To be certified for use.

No additional information.

Question 20

What are the other standards set for refrigerant handling?

Answer 20

Standards for purity, recovery, recycling, and alternative replacement refrigerants.

No additional information.

Question 21

When was the sale of ODS and substitute refrigerant restricted to certified technicians for 2 Lbs or more?

Answer 21

January 1, 2018

No additional information.

Question 22

What does S.H.I.E.L.D stand for in terms of safety?

Answer 22

Safety, Hazards, Injury, Employees, Leading, Defense.

No additional information.