1.
Before transferring refrigerant to an empty cylinder, the cylinder should be:
2.
A moisture-indicating sight glass is located on the liquid line, immediately downstream from the:
3.
A(n)_____ should be used to remove ice from a sight glass or viewing glass.
4.
For the suction line, the ______ is found on the low side at the outlet of the evaporator.
5.
For the liquid line, on the high side between the condenser and the metering device, the ______ is found.
6.
A high-pressure relief device helps to protect the ______ from damage.
7.
If multiple pressure relief valves are installed, they should be installed:
8.
If a pungent (sharp) odor is encountered the recovery process, what is likely to have gone wrong?
9.
The EPA regards the following as a major repair to a refrigeration system:
10.
At least ______ microns should be reached for a deep vacuum.
11.
What sort of PPE (personal protective equipment) is recommended when using cleaning solvent?
12.
What should be done with lifelines, safety harnesses, and shock-absorbing lanyards that have been subjected to impact loading?
13.
What is the longest standard length of a scaffold plank?
14.
On a 120V circuit, what color is the (protective) ground wire?
15.
What is the minimum distance apart that acetylene and oxygen cylinders must be stored?
16.
Which of the following is a correct method for storing acetylene cylinders?
17.
Which of the following is the best choice for hoisting a full gas cylinder?
18.
Cylinders containing ______ shall not be taken into confined spaces.
19.
A dry chemical or carbon dioxide fire extinguisher rated at least ______ must be kept near operations where bottled fuel gases are being used.
20.
No more than ______ of paints, solvents, and chemicals may be stored in a room unless an approved safety storage cabinet is present.
