DOL 8/20-8/21

What is the term for removing refrigerant in any condition from a system and storing it in an external container without necessarily testing or processing it in any way?

• Recycling

• Recovering

• Reclaiming

• Restoring

Which of the following leak detection methods is considered to be the most effective for locating the general area of a small leak?

• Standing vacuum test

• Electronic or ultrasonic tester

• Halide torch

• Audible sound

How many different refrigerants should be recovered into the same cylinder?

• Only one.

• Only two.

• Any number as long as all are CFCs.

• Depends on the reclaim company.

The piping connection to the vacuum pump should be;

• as short in length and as large in diameter as possible.

• suitably sized to connect to a gauge manifold.

• coiled and taped together.

• colored red or blue to meet codes.

In most refrigerant accidents where death occurs, what is the major cause?

• Toxic poisoning

• Oxygen deprivation

• Refrigerant burn

• Heart failure

A refillable refrigerant cylinder must not be filled above what percent of its capacity by weight:

• 50

• 70

• 80

• 95

How should refrigerant cylinders be positioned when they are shipped?

• Inverted

• Upright

• Horizontally

• Stacked