Types of Sprinklers: SSP/SSU/Upright

NFPA 13 does not support the use of _____ sprinkler systems.

• partial

• spatial

• partitional

• theoretical

What is an example of a non-combustable material?

• Glass

• Grass

• Drywall

• MDF

The maximum area of coverage of any sprinkler shall not exceed _____.

• 400 sq. ft.

• 225 sq. ft.

• 155 sq. ft.

• 108 sq. ft.

Answer explanation

The maximum protection area of 400 ft2 for any type of sprinkler limits the area that is permitted to be unprotected if the discharge from a single sprinkler is obstructed or if the sprinkler fails to operate

The distance from sprinklers to walls shall not exceed ____ of the allowable maximum distance between sprinklers.

• one-half

• one-third

• one-quarter

• 4 inches

For corrugated metal deck roofs up to _____ in depth, the distance shall be measured to the sprinkler from the bottom of the deck.

• 3"

• 4"

• 6"

• 8"

For insulation that is installed directly against the ceiling or roof structure and is installed flat and parallel to the ceiling or roof structure, the deflector distance shall be measured to the _________.

• underside of the insulation

• bottom of the deck

• topside of the insulation

• bottom of the I-beam or truss

Most of the pattern development occurs within a zone beginning at the sprinkler deflector and extending _____ below the sprinkler

• 18” to 36”

• 12" to 16"

• 1" to 2"

• 14" to 40"

Sprinklers shall be installed below fixed obstructions over ____ in width.

• 4 feet

• 3 feet

• 2 feet

• 6 feet

Answer explanation

When obstructions are located more than 18 in. below the sprinkler deflector, an adequate spray pattern develops and obstructions up to and including 4 ft. wide do not require additional protection underneath.

Where multiple levels of ducts, pipes, or other similar horizontal obstructions that are over 4 ft. wide are stacked vertically, additional levels of sprinkler protection between the vertical levels are ____.

• not required

• required between each vertical level

• required between every other vertical level

• dependent upon sprinkler temperature rating

The discharge pattern for most sprinklers is fully developed at about a ___ distance below the sprinkler

• 4 feet

• 5 feet

• 6 feet

• 7 feet