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General Maintenance -boma exam graded A+
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General Maintenance -boma exam graded A+
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General Maintenance/ boma examgraded A+
____________is not a normal additive in lubrication - ANS-Hexihydrene
________are used for multigrade oils - ANS-Polymers
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 - 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 of the: - ANS-Top of the main
A device such as a sink, lavatory, toilet or shower stall is called a - ANS-fixture
A drainage fixture unit (dfu) is equivalent to how many gallons of water flow? - ANS-71/2
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 a application where you need to control the flow of a fluid
- ANS-True
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 horse power is equal to_______ foot lbs. per minute - ANS-33,000
A plane journal bearing operating at a slow speed should be lubricated - ANS-With oil
having a high viscosity
A sprinkler head that is mounted in an inverted position is called - ANS-Pendent,
Conventional, Flush Pendant( all of the above)
A standard grade, pitch, fall, or slope of a horizontal drainage system should not exceed
- ANS-1/4" per foot
, A well used to fill a corner, as in a lap joint or a T joint, is called - ANS-Fillet weld
Absolute pressure is Gauge - ANS-Pressure plus 14.7 psi
And oxygen/acetylene system is used for the following purposes - ANS-Silver soldering
copper and brass joints, cutting metal, brazing (all of the above)
Baffles in a greased interceptor reduce____________ within interceptor - ANS-
Turbulence
Before a second bead is laid over or next to a just completed bead in arch welding, the
weld area must 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 (all of the above)
Branch fittings are identified by right and left by - ANS-holding the inlet towards the
observer with outlet down
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 materials is essential - ANS-True
Consumable metallic electrodes used ac 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 or elevations of the__________ and _________ in
to the water - ANS-Inlet: outlet
Curb cock - ANS-A Valve insert it in a water line between the corporation stop and the
water meter is generally called
For electrodes up to 3/16 inch in diameter, the length of the arc should be kept to
approximately: - ANS-1/4inch
Gate valves - ANS-Have less pressure dropped than most other kinds of valves, Are
available to quick opening models A&B
Gloves for use in Welding should have - ANS-Long cuffs
Grease are classified as their mobility and oil content by the - ANS-S.A.E
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