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BOMA General Maintenance 1. Usually if a motor in a system feels hot and you think it is overloading you should not open the flow valve further because?: Increase in flow will usually increase the horsepower requirements. $9.99
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BOMA General Maintenance 1. Usually if a motor in a system feels hot and you think it is overloading you should not open the flow valve further because?: Increase in flow will usually increase the horsepower requirements.
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BOMA General Maintenance 1. Usually if a motor in a system feels hot and you think it is overloading you should not open the flow valve further because?: Increase in flow will usually increase the horsepower requirements.

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  • October 29, 2024
  • 23
  • 2024/2025
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  • boma general maintenance 1 usually if a motor in

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  • Boma HVAC

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BOMA General Maintenance


1. Usually if a motor in a system feels hot and you think it is overloading youshould not open the flow valve
further because?ANS
Increase in flow will usually increase the horsepower requirements.
2. Net positive suction head is?ANS
The amount of absolute pressure actually avail-able at the suction inlet of the pump to force the liquid up the pump.
3. If the seal has just been replaced and if the pump leaks slightly at start up,first?ANS
Allow the pump to continue to run for a short period of time and see if the leak stops.
4. If it is ever necessary to reduce the pump flow temporarily, do so by?ANS
Throt-tle the discharge
5. There are several methods used to detection of incipid fires, temperaturesensing and smoke detections
are the primary one?ANS
True
6. Smoke detection is accomplished by either photoelectric scanning, ioniza-tion, chambers, and smoke
detection devices?ANS
True
7. A sprinkler system with sprinklers that stay open all the time is a?ANS
deluge
8. Sprinkler heads that are mounted in an inverted position is called a?ANS
pen-dant, conventional, flush pendant.
9. The number of sprinkler that can be placed on a given pipe is governedby?ANS
The pipe size
10. In a fire sprinkler system there two main types of sprinkler heads, uprightand pendant?ANS
True
11. Which of the following best describes the basic types of sprinkler systemsin a building?ANS
Standard wet system, standard dry system and deluge system.
12. The most important component in a sprinkler system is?ANS
A reliable sourceof water, sufficient volume of water and sufficient water pressure.
13. Connection between a given building fire protection system and the publicwater supply are controlled
by?ANS
Post indicating valves
14. The class of standpipe system is determined by?ANS
GPM capacity, hoseconnection size and personnel who uses it
15. As to the content of portable fire extinguishers which of the followinganswers is not correct?ANS
Carbon monoxide
16. Class "A" fires are those of combustible materials such as wood, paper,cloth. Where cooling, soaking or
cloaking the burning materials essential?ANS
-True
17. Class "A" fires are those flammable liquids, gases and greases which blan- keting, smothering or
extinguishing agents are essential or flame interrupting affect is needed.?ANS
False
18. Class "C" fire are those involving energized electrical equipment where non-conductive or
extinguishing agents are essential?ANS
True






, BOMA General Maintenance


19. 1 cubic feet of water is how many gallons?ANS
7.48
20. A horsepower is equal to ?ANS
33,000 foot pounds of work per minute
21. Capacity of an air compressor is usually expressed in cubic feet perminute?ANS
True
22. Temporary platforms used by to support workers and materials whileworking off the ground is
usually called a ?ANS
scaffolding
23. A device used to measure battery acid strength is a ?ANS
Hydrometer
24. Brazed cast fittings should be cooled with ?ANS
A damp cloth
25. When attempting to locate a gas leak the sense of is usually not
used.ANS
Taste
26. Regulator gauges are to .ANS
Indicate tank pressure and indicate gaspressure to the torch.
27. Torches should be inspected for leakage at .ANS
The tip, valves, and hoseconnections.
28. So that it can be turned off quickly in an emergency, the acetylene valveshould be opened .ANS
¼ turn
29. Purging the hose lines on a oxy-acetylene torch should occur .ANS
Whensecuring the rig for the day.
30. Recommended flame for brazing is ?ANS
Neutral
31. An oxy-acetylene system is used for the following purposes.ANS
Silver solder-ing copper & brass joints, cutting metal and brazing.
32. When welding galvanized metals in a confined space, it is vital to make sure the area is well
ventilated.ANS
True
33. *The filter lenses are required for eye protection in welding and cutting operation and are designed to
safeguard the eyes from injuries from what types of rays?ANS
Ultraviolet/infrared and visible
34. Flux is ?ANS
A cleaning substance to be used when soldering.
35. Electrical tools should not be operated when either the tool or the operatoris in contact with ?ANS
Flammable gases and water
36. A long pin on a 115-volt electrical plug ?ANS
Is a safety ground and shouldnever be removed.
37. When working with electricity it is ?ANS
Perfectly safe to use a woodenladder & perfectly safe to use a fiberglass ladder.
38. Oxygen under pressure should never be allowed to come in contact with
?ANS


, BOMA General Maintenance

Oil
39. Should safety glasses been worn when using a hacksaw?ANS
Yes
40. What's the purpose of a safety lock-out program.ANS
To protect the circuit you are working on, to protect the life of the person working on the circuit and to protect the
employer from a lawsuit.

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