Mechanical Systems Commissioning Quiz
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Question 1 of 20
1. Question
1. What does commissioning of mechanical systems really mean?
Hint
The commissioning process (often referred to as “acceptance testing”) includes achieving, verifying, testing, accepting, and documenting that the performance of mechanical systems meets design intent and the owner and occupant needs.
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Question 2 of 20
2. Question
2. What is the purpose of mechanical systems commissioning?
Hint
The purpose of mechanical systems commissioning is to increase the reliability of mechanical systems after installation by identifying problems and providing a set of baseline values for comparison with subsequent routine tests.
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Question 3 of 20
3. Question
3. What is the typical cost of commissioning a mechanical system on a new building?
Hint
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Question 4 of 20
4. Question
4. What are the typical cost savings of commissioned versus non- commissioned facilities for energy savings?
Hint
Cost savings resulting from commissioned versus non-commissioned facilities for energy savings are reported from 8 to 50 percent with average savings of about $.75 per square foot.
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Question 5 of 20
5. Question
5. Which phase of a commissioning plan are the actual tests performed?
Hint
Design Phase is the develop of the pre-functional test plan and include a pre-functional test procedure for each system using the criteria established above.
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Question 6 of 20
6. Question
6. Water flow through a boiler or chiller is maintained at a ______ rate.
Hint
Water flow through the boiler and chiller are maintained at a constant rate with a three- way control valve.
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Question 7 of 20
7. Question
7. True or False? Fluid flow in coils or air flow through the AHU can be adjusted for interior environmental control.
Hint
Fluid flow in coils or air flow through the AHU can be adjusted for interior environmental control.
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Question 8 of 20
8. Question
8. _______ dampers are dampers which close when a fuseable link melts and permits the damper to close.
Hint
Fire dampers are dampers which close when a fuseable link melts and permits the damper to close.
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Question 9 of 20
9. Question
9. In troubleshooting a vibrating ventilation fan, which of the following doesn’t need to be checked?
Hint
You are to check the power supply
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Question 10 of 20
10. Question
10. As part of the commissioning effort each component should be checked for ______ by a procedure using inspections and tests as defined by the specific equipment manufacturers.
Hint
All of the above
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Question 11 of 20
11. Question
11. What type of air compressor would warrant use on a large system up to 18,000 CFM?
Hint
Centrifugal compressors are used in large systems up to 18,000 cfm.
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Question 12 of 20
12. Question
12. What component of an air compressor system is being diagnosed if checking safeties and interlocks to the fire protection system?
Hint
The General controls
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Question 13 of 20
13. Question
13. What is the normally the temperature at which fixed temperature detectors are activated in common areas?
Hint
Fixed temperature detectors are activated when the sensor inside the detector reaches a set temperature. This temperature is normally 135°F for common areas.
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Question 14 of 20
14. Question
14. A wet pipe sprinkler system does not flow during tests, what should be checked?
Hint
You check the shut off valves
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Question 15 of 20
15. Question
15. True or False? Lifting devices are NOT part of commissioning mechanical systems.
Hint
Lifting devices are part of commissioning mechanical systems.
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Question 16 of 20
16. Question
16. Name at least one test device required for elevator inspection?
Hint
Voltmeter
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Question 17 of 20
17. Question
17. What critical component separates the water supply from the process and potable water?
Hint
The water supply to a facility normally meets potable (drinking) water standards. The water supply is separated from facility potable water with a back-flow preventer and from the facility process water with a second back flow preventer.
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Question 18 of 20
18. Question
18. If the water supply and treatment system has poor water quality, what should be checked?
Hint
Correct chemicals and correct quantity of chemicals added
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Question 19 of 20
19. Question
19. Which of the following systems are NOT part of the commissioning process?
Hint
None of the above
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Question 20 of 20
20. Question
20. True or False? Upon achieving final acceptance at the conclusion of the post acceptance period, the last step of the commissioning process, the owner and/or his operating and maintenance (O & M) contractor take over full ownership and responsibility of the mechanical systems.
Hint
Upon achieving final acceptance at the conclusion of the post acceptance period, the last step of the commissioning process, the owner and/or his operating and maintenance (O & M) contractor take over full ownership and responsibility of the mechanical systems.