Specialized Tools Quiz

The piece of test instrumentation that converts heat energy into visible light is the

• refractometer

• psychrometer

• anemometer

• thermal imaging camera

The instrument that measures wet-bulb and dry-bulb temperatures is the

• refractometer

• psychrometer

• anemometer

• thermal imaging camera

A velometer is used to measure the

• volume of airflow in a duct system.

  
  

• speed of an air stream in a duct system.

  
  

• volume of refrigerant in an HVACR system.

  
  

• speed of refrigerant in an HVACR system.

  
  

Refrigerant is mechanically removed from an HVACR system using a

• refrigerant charging scale

• vacuum pump

• refrigerant recovery unit

• refrigerant gauge manifold

What two functions does a vacuum pump perform?

• Dehydrating and remove contaminates

• Pressurizing and de-pressurizing

• Pushing and pulling

• Charging and recovering

Which of the following tools monitors the amount of refrigerant added to or removed from an HVACR system?

• Refrigerant charging scale

  
  

• Refrigerant recovery unit

  
  

• Micron gauge

  
  

• Vacuum gauge

The digital vacuum gauge measures a vacuum in which units?

• 
  Inches of water column (IWC)
  

• 
  Psia

  
  

• Psig
  

• Microns

Which of the following gauge manifold hoses is typically larger than the others?

• Evacuation hose

• High-side hose

• Refrigerant charging hose

• Low-side hose

Which of the following torches uses both an oxygen and an acetylene regulator?

• Oxyacetylene torch

• Air-acetylene torch

• MAPP gas torch

• Propane torch

In order to minimize the potential for leaks in a refrigerant piping arrangement, which of the following processes is desirable?

• Brazing

• Soldering

• Bending

• Flaring