Universal Short

Which process is defined as removing refrigerant (in any condition) and storing it in an external container to be put back in the same system?

• 
  Reclaim

• 
  Recover

• 
  Recycle

Is it permissible to combine different types of recovered refrigerants in one recovery cylinder?

• No, it is not permissible

• Yes, it is permissible

A company has a chiller that uses 60% of the chiller cooling capacity for cooling an industrial process and 40% to cool the office spaces in the factory. Which leak rate category is this chiller in?

• the all other category because the use is split

• comfort cooling

• air conditioning

• Industrial process refrigeration

Recovery efficiency will be dependent on which of the following?

• Ambient temperature

• All of these

• Amount of moisture

• Size of the appliance

Recovered refrigerant that is contaminated must be recovered into:

• A tank with other types of refrigerant in it

• The same tank as the refrigerant that isn't contaminated

• A separate tank

The final system vacuum measurement should be done with:

• The vacuum pump turned on

• The vacuum pump turned off

• A multimeter

What can form if water or water vapor is left in the system?

• hydrocarbon

• hydrochloric and hydrofluoric acid

• ester-based oil

• hydrogen

What is the definition of a Type II appliance?

• high pressure appliance containing more than 5 lbs of refrigerant

• A high pressure appliance containing less than 5 lbs of refrigerant

• A low pressure appliance containing more than 5 lbs of refrigerant

• An appliance containing less that 5 lbs of refrigerant

Which of the following is an example of a Type II appliance?

• A residential refrigerator

• A window AC unit

• A low pressure chiller

• A split heat pump

On comfort cooling equipment containing 50 lbs or more of refrigerant charge, leaks must be repaired when the annual leak rate reaches ____.

• 40%

• 
  30%

• 
  10%

• 
  20%