NFPA 13D allows for shadow areas to be permitted in the protection area of a sprinkler as long as the cumulative dry areas do not exceed _____ per sprinkler.

• 10 sq. ft.

• 15 sq. ft.

• 20 sq. ft.

• 25 sq. ft.

• 5 sq. ft.

Research conducted by the National Institute of Standards and Technology (NIST) has shown that home fires become deadly in as few as ______.

• 3 minutes

• 5 minutes

• 7 minutes

• 10 minutes

• 15 minutes

Larger homes, open spaces, increased fuel loads, void spaces, and changing building materials contribute to:

• faster fire propagation

• shorter time to flashover

• rapid changes in fire dynamics

• shorter escape times

• all of the above

Residential fire sprinkler systems are designed with the primary purpose of ______.

• saving property

• saving water

• saving lives

• saving money

• saving time

With residential sprinklers, ________ in the room of origin is relied upon to control the fire.

• a smoke alarm

• a heat detector

• an ESFR sprinkler

• a single sprinkler

• at least 3 sprinklers

Standard commercial sprinklers were developed with the objective of protecting _______.

• human people

• water pressure

• the building and its contents

• shadow area

• other mechanicals

It is critically important to install residential sprinklers_______.

• according to their listing

• quickly

• vertically

• perpendicular to the pipe

• in a manner that pleases the AHJ

Store sprinklers on the job in a cool, dry place ________.

• in buckets or bags

• in the truck bed

• in the original shipping container

• in waterproof packaging

• in a finished portion of the building

Escutcheons used with recessed, flush-type, or concealed sprinklers shall be ___________.

• color matched to room decor

• non-metallic

• fire caulked after installation

• part of a listed sprinkler assembly

• subject to AHJ coordination

Deflectors of residential upright and pendent sprinklers shall be aligned _______ to ceilings, roofs, or the incline of stairs.

• perpendicular

• parallel

• adjacent

• physically

• virtually