NFPA 13: Finding the section and answer

When supporting a run of 6 inch sprinkler main entirely with expansion shields in the vertical position, their maximum spacing apart is:

• 5 feet
• 8 feet
• 10 feet
• 12 feet

Sprinklers under glass or plastic skylights exposed to the direct rays of the sun shall be of the _________ temperature classification.

• intermediate
• ordinary
• high
• extra high

The frame of an upright sprinkler head should be installed______.

• parallel to the attached piping
• perpendicular to the attached piping
• with the pitch of the roof
• pointing in the direction to the shut off valve

Hydrostatic testing per NFPA-13 requires that the hydrostatic testing be performed with the clapper off its seat if the valve is:

• an alarm valve
• a pre-action valve
• a differential type dry-pipe valve
• a latch clapper type dry-pipe valve

A new dry pipe system shall be tested for 24 hours with

• 40 psi air
• 50 PSI air
• 150 PSI water
• 200 PSI water

The distance between a hanger and the centerline of an upright sprinkler shall not be less than

• 3 inches
• 4 inches
• 5 inches
• 6 inches

A minimum clearance between the top of storage and a standard spray pendent sprinkler's deflector shall be?

• 24 inches
• 18 inches
• 12 inches
• 6 inches

A one inch auxiliary drain valve on a wet-pipe system is required for an isolated trapped section of pipe when the capacity of that section is more than

• 10 gallons
• 20 gallons
• 25 gallons
• 50 gallons

The minimum stock of spare sprinklers that shall be maintained on the premises for a sprinkler system having less than 300 sprinklers is

• 3 spares
• 6 spares
• 12 spares
• 18 spares

The maximum size pipe that may be supported by a toggle in metal lath and plaster ceilings is ____inch

• 1
• 1 1/4
• 1 1/2
• 2