HVAC State Test Prep 10

Maintenance of equipment and systems is very important in any air-conditioning and refrigeration system. What is the type of maintenance procedure most often discussed and utilized?

• preventive
• proactive
• predictive
• reactive

What is meant by preventive maintenance?

• time-based maintenance
• routine assessment of equipment condition
• root-cause failure analysis
• training to assure understanding of equipment

What questions about output results should be asked about the computerized-maintenancemanagement system (CMMS)?

• Can the CMMS system produce an accurate labor report to be utilized during budget preparation?
• Can repeat work orders be flagged to indicate a potential system problem?
• Can these reports be utilized when dealing with an oversight authority such as the Joint Commission on Accreditation of Healthcare Organizations?
• all of these

Why are safe practices important in servicing refrigeration equipment?

• they prevent accidents
• they save lives
• they help keep equipment and maintenance personnel from danger
• all of the above

Cylinders of compressed gas must be handled carefully. What is the pressure of a cylinder of nitrogen at room temperature in pounds per square inch?

• 1000
• 500
• 740
• 2000 l

When flushing or purging a contaminated system, care must be taken to protect the eyes and ________ from contact with acid-saturated refrigerant or oil mists.

• fingers
• toes
• skin
• all of these

A frangible disc is a:

• breakable type disc
• sheet metal disc
• cast iron disc
• ceramic disc

Never fill any refrigerant gas cylinder with liquid at more than ________ percent in order to allow for expansion.

• 90
• 80
• 99
• 90

One of the most-often repeated admonishments in safety is:

• lift with the legs and not the back
• wear safety-toed shoes
• wear goggles
• wear gloves

Why should you not handle an electrolytic capacitor when charged?

• it still may have a charge
• it is still warm
• it explodes easily
• it can shock you