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BOMA - Instrumentation & Controls
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When Starting a centrifugal pump That is part of a manifold with no check valves - ANSWER You should open the suction valve, start the pump and open the discharge valve slowly Curb cock - ANSWER A Valve insert it in a water line between the corporation stop and the water meter is generally calle...

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Document information

  • November 3, 2024
  • 9
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

Subjects

  • boma instrumentation controls
  • general maintenance boma correct questions answ
  • when starting a centrifugal pump that is part of a
  • curb cock answer a valve insert it in a water l

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  • BOMA - Instrumentation & Controls
  • BOMA - Instrumentation & Controls

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General Maintenance/ boma CORRECT QUESTIONS &
ANSWERS(GRADED A)

When Starting a centrifugal pump That is part of a manifold with no check valves - ANSWER You should
open the suction valve, start the pump and open the discharge valve slowly



Curb cock - ANSWER A Valve insert it in a water line between the corporation stop and the water meter
is generally called



To check sheave wear - ANSWER Measure each groove angle



Variable pitch sheaves may be used in some cases to provide which of the following types of speech
changes - ANSWER Small



Absolute pressure is Gauge - ANSWER Pressure plus 14.7 psi



Which of the following best describes the basic types of sprinkler systems in a building - ANSWER
Standard wet type system, Standard dry type system, deluge system ( all of the above)



Power equals - ANSWER Force times distance divided by time



Torches should be inspected for leakage at the - ANSWER Tip, valves, hose connections all of the above



Smoke detection is usually accomplish by using either photo electric scanning, ionization chambers or
smoke deflection devices? - ANSWER True



If a coupling is not properly aligned - ANSWER It will almost certainly fail more quickly than his should &
it could wear out equipment bearings A&C



To protect a pump and motor against slight misalignment, they are often connected by a - ANSWER
Flexible coupling

, The coding on a metallic electrode - ANSWER Stabilizes the arc and controls oxidation



Continual problems with Belt turnover are likely to be caused by - ANSWER Improper installation
technique



The scale of a working drawing can be determined by - ANSWER This scale will be indicated on the
drawings



A _________ is a direct or in direct connection Which may permit waste sewage or other non-potable
water to flow into a potable water source or supply - ANSWER Cross connection



Traps are installed to prevent_________ from entering the structure - ANSWER Sewer gas, offensive
odors, vermin (all of the above)



The main purpose of lubrication usually is to - ANSWER Reduce friction and wear



When installing a P-trap, the vertical distance from the fixture to the__________ may not exceed 24" -
ANSWER Trap outlet



A gate valve would be Used in a application where you need to control the flow of a fluid - ANSWER True



Purging of the hose lines of oxygen/acetylene torch should occur: - ANSWER When securing the rig for
the day



And oxygen/acetylene system is used for the following purposes - ANSWER Silver soldering copper and
brass joints, cutting metal, brazing (all of the above)



Needle valves - ANSWER Are similar in design to globe valves



If the packing has just been replaced on a pump and it leaks slightly at start up, first - ANSWER The slight
leakage is normal, monitor for excessive licking and adjust appropriately

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