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General Maintenance BOMA Pre-Quiz Solved 100% Correct
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General Maintenance BOMA Pre-Quiz Solved 100% Correct
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General Maintenance BOMA Pre-QuizSolved 100% Correct
A _______ is a direct or indirect connection which may permit waste sewage or other
non-potable water to flow into a potable water source or supply? - ANS-Cross
connection
A 1/4-bend changes the direction of the pipe: - ANS-90 degrees
A branch steam line take off the main, should come off of the ? - ANS-top of the main.
A device such as a sink, lavatory, toilet, or shower stalls is called a: - ANS-Fixture
A drainage fixture unit (dfu) is equivalent to how many gallons of water flow? - ANS-7
1/2 gallons per minute
A foot valve may sometimes be used on the submerged end of the suction pipe of a
centrifugal pump: - ANS-To keep the pump primed
A foot valve may sometimes be used on the submerged end of the suction pipe of a
centrifugal pump: - ANS-To keep the pump primed
A gate valve would be used in an application where you need to control the flow of a
fluid. - ANS-False, Globe valve to control.
A hole is to be drilled in a part. How can the dimensions of the hole be indicated most
conveniently on a drawing of the part? - ANS-A brief note connected by a leader to the
hole.
A plain journal bearing operating at low speed should be lubricated - ANS-with oil
having a high viscosity
A sprinkler head that is mounted in an inverted position is called a: - ANS-Pendant ,
conventional type, flush pendant
A standard grade,pitch, fall, or slope of a horizontal drainage system should not exceed:
- ANS-1/4" per foot
A valve inserted in a water line between the corporation stop and the water meter is
generally called. - ANS-Curb cock
A weld used to fill a corner, as in a lap joint or a t joint, is called a? - ANS-Fillet weld
Absolute pressure is gauge - ANS-Pressure plus 14.7 psi
, An oxygen/acetylene system is used for the following purposes? - ANS-silver soldering
copper and brass joints, cutting metal, brazing, All of the above.
Baffles is a grease interceptor reduce the ___________ within interceptors: - ANS-
Turbulence
Before a second bead is laid over or next to a just complete bead in arch welding, the
weld area must be be: - ANS-Cleaned to remove all slag
Black iron pipe is often used for: - ANS-Steam heating, gas and air pressure piping, hot
water heating.
Brazed cast fittings should be cooled: - ANS-Slowly
Class "A" fires are those of ordinary combustible materials such as wood, paper, and
cloth where cooling, soaking, or coating of the burning material is essential? - ANS-True
Consumable metallic electrodes used in arc welding are usually of what type? - ANS-
Heavily coated
Continual problems with belt turnover are likely to be caused by? - ANS-Improper
installation technique
Critical points of a grease interceptor are elevations of the _____ and _____ in to the
water: - ANS-Inlet, outlet
For electrodes up to 3/16 inch in diameter, the length of the arc should be kept to
approximately? - ANS-1/4 inch
Gate Valves: - ANS-Have less pressure drop than most other kinds of valves.
Are available to quick opening models
Gloves for use in welding should have: - ANS-long cuffs
Greases are classified as to their mobility and oil content by the? - ANS-S.A.E.
If a coupling is not properly aligned - ANS-1. Will fail quicker
2. Wear out equipment and the bearing
if a fixture trap has excessive outlet distance or the pitch is excessive _________ could
occur. - ANS-self-syphon
if an object is drawn 1/4 scale of the drawing Is? - ANS-1/4"=1'0
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