EPA Practice Test – Core #3

1. Which of the following is an HCFC refrigerant?

When will the ban on the production or importing of any HCFC refrigerant take effect?

1. Many refillable cylinders have which of the following attachments to automatically shut off the system when the storage tank level exceeds the 80% full?

1. What explains the purpose of recovery?

1. What is the range of calibration of the high pressure gauge manifold?

1. In the evacuation system, vacuum lines (hoses) should be equal to or larger than the pump intake connection.

The most effective method for checking small leaks uses a halide torch.

1. The refrigerant recovery rate will be _________ than the smaller refrigerant system size.

1. Only cylinders designated as “refillable” by the __________can be used for refrigerant recovery.

1. UV radiation can cause which of the following: 1) Suppression of the immune system 2) Increase in skin cancers and cataracts?

Disposable cylinders consist of which of the following?

1. Which of the following gas is used when checking for leaks in a system?

1. At rates of about _______ per year, the electronic leaks.

In which part of the refrigeration cycle is the evaporator located?

1. Which of the following refrigerants does the Montreal Protocol agreement not phase out?

1. Before it can be sold, what standard must reclaimed refrigerants meet?

1. During which phase will refrigerants be in a state of high-pressure hot vapor?

1. What is the state of nitrogen when it is used to pressurize the system?

1. What is the fastest method of dehydrating a system?

1. Which one of the following refrigerants contribute to global warming?

1. When an appliance contains __________ or more pounds of refrigerant, the servicing technician must provide the owner with an invoice that indicates the amount of refrigerant added to the appliance.

1. What percentage of the earth’s atmosphere does nitrogen constitute?

1. In what year will the HCFC ban extend to all HCFCs for use in new systems?

1. The ozone depletion potential of CFCs is higher than HCFCs

Refrigeration technicians who violate the Clean Air Act become subject to