Class 1 commodity is more combustible then class 3 correct answers False
All holes for lag screws shall be pre-drilled __________ inch less in diameter than the max. root diameter of the lag screw thread. correct answers 1/8in
Coach screws shall not be used for support of pipes larger than __...
Sprinkler test || with 100% Errorless Answers.
Class 1 commodity is more combustible then class 3 correct answers False
All holes for lag screws shall be pre-drilled __________ inch less in diameter than the max. root
diameter of the lag screw thread. correct answers 1/8in
Coach screws shall not be used for support of pipes larger than ________ inch in diameter.
correct answers 4
Distance between supports on a riser shall not exceed _________ feet. correct answers 25ft
Fire department connections shall be installed so that they are located not less than ______ nor
more than ______ above the level of the adjoining ground, sidewalk, or grade surface. correct
answers 18in , 48in
Flexible couplings shall be installed on risers within_____ inches above and _____ inches below
the floor in multi-story buildings. correct answers 12in and 24in
For ESFR sprinklers, the clearance between the deflector and the top of storage shall be ____
inches or greater correct answers 36in
For extra hazard occupancies, the maximum distance between sprinklers shall not exceed ______
feet correct answers 12ft
Hangers shall be designed to support _______ times the weight of water-filled pipe plus
________ at each point of piping support. correct answers 5 and 250
Hose connections and hose stations shall be unobstructed and shall be located not less than
______ nor more than ______ above the floor.
Answers correct answers 36in, 60in
How high can storage be before it is considered high-piled storage? correct answers 12ft
How shall the sprinkler head protecting the dry pipe valve enclosure be fed? correct answers
From the dry side of the system
In residential applications, fire department connections are required to be a minimum of _______
in size. correct answers 1 1/2"
Is the use of reconditioned valves and devices as replacement equipment in existing systems
allowed? correct answers Yes
Joints for the connection of copper pipe an fittings on dry and preaction systems shall be brazed.
correct answers True
, Lateral sway bracing shall be spaced at a minimum of __________ feet on center on all feed and
cross mains regardless of size and on all piping 2 1/2" and larger correct answers 40ft
Lateral sway bracing shall not apply to pipes individually supported by rods less than ______
inches long measured between the top of the pipe and the point of attachment to the building
structure. correct answers 6in
Longitudinal sway bracing spaced at a maximum of ________ feet on center shall be provided
for feed and cross mains. correct answers 80ft
No clearance is required if flexible couplings are located within _____ each side of a wall, floor,
platform, or foundation. correct answers 12in
Ordinary hazard occupancy protection areas shall not exceed ________ square feet. correct
answers 130
Pressure tanks should be kept ________ full of water. correct answers 2/3
Pressure tanks should maintain an air pressure of at least ______ psi. correct answers 75PSI
Risers shall be supported by pipe clamps or by hangers located on the horizontal connections
within ________ inches of the centerline of the riser. correct answers 24in
Screwed unions shall not be used on pipe larger than _________ inch correct answers 2in
Sprinklers installed where maximum ambient ceiling temperatures do not exceed 100 degrees
farenheit shall be __________ temperature rated sprinklers. correct answers Ordinary
Sprinklers under glass or plastic skylights exposed to direct rays of the sun shall be of
____________ temperature classification. correct answers intermediate
Starter lengths less than ____ feet shall not require a hanger correct answers 6ft
The distance between the last lateral sway brace and the end of the pipe shall not exceed
_______ feet correct answers 6
The hydraulic symbol for a 45 degree elbow is _______? correct answers EE
The maximum area of coverage by a single sprinkler head in a light hazard occupancy is
__________ square feet. correct answers 225sqft
The maximum area to be protected by any single residential sprinkler shall not exceed ________
square feet. correct answers 144sqft
The minimum distance between sprinkler heads in a compartment is _____ feet. correct answers
8ft
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