Meeting 5 EPA Quiz SEC. 5-6 Exam Questions and Answers
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Course
Refrigeration machine operator
Institution
Refrigeration Machine Operator
true - Answer-one-trip refrigerant cylinders cannot be refilled under any circumstances
true - Answer-if a recovery tank is empty and at atmospheric pressure, it is recommended that the tank be turned upside down with the vapor valve open
false - Answer-cylinders of compressed gasses shall be...
Meeting 5 EPA Quiz SEC. 5-6 Exam
Questions and Answers
true - Answer-one-trip refrigerant cylinders cannot be refilled under any circumstances
true - Answer-if a recovery tank is empty and at atmospheric pressure, it is
recommended that the tank be turned upside down with the vapor valve open
false - Answer-cylinders of compressed gasses shall be transported in a horizontal
position, unless packed in boxes or crates of such size as to prevent their overturning,
or unless loaded into suitably secured racks, or otherwise secured in an upright position
true - Answer-many refrigerants have low boiling points and can cause instant frostbite
if liquid touches the skin
true - Answer-each refrigeration machinery room shall have a tight-fitting door or doors
opening outward, self-closing if they open into the building, and adequate in number to
ensure freedom for persons to escape in an emergency
false - Answer-all reusable cylinders must never be weighed during the filling process to
ensure safety
true - Answer-Per ASHRAE Standard Addendum d 11.2.4, each entrance to a
refrigerating machinery room shall be provided with a legible permanent sign, securely
attached and easily accessible, reading "machinery room - authorized personnel only"
0 - Answer-the pressure in a cylinder must be reduced to a maximum of ___ psig before
disposing of the cylinder
5 - Answer-a cylinder must not be filled if the present date is more than ___ years past
the daye stamped on the shoulder or collar of the cylinder
80 - Answer-only fill a refrigerant cylinder to a maximum of ___% of the containers
capacity
red - Answer-on systems that contain flammable refrigerants, the process tubes and
piping that extend one inch in either direction of the access point must be color-
coded___ to indicate the flammable nature of the refrigerant contained in the system
A1 - Answer-refrigerants classified as ___ substances are considered the safest
15 to 50 pounds - Answer-disposable, non-refillable cylinders are available in capacities
ranging from ___, depending on the refrigerant type and the manufacturer
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