Requirements for System Types

The NFPA 13 standard shall provide ______ for the design and installation of automatic fire sprinkler systems and exposure protection sprinkler systems.

• the minimum requirements

• the maximum requirements

• formulaic reciprocity

• CAD based drawings

The most common type of sprinkler system in use today is ______.

• a wet system

• a dry system

• a preaction system

• an antifreeze system

A wet pipe system shall be provided with a listed relief valve not less than ___ in size and set to operate at 175 psi or 10 psi in excess of the maximum system pressure.

• 1/4"

• 1/2"

• 3/4"

• 1"

The dry pipe valve and supply pipe _____ against freezing and mechanical injury.

• should be protected

• shall be protected

• might need to be protected

• should never need protection

For dry pipe systems, with the exception of some refrigerated spaces, the air supply shall have a capacity capable of restoring normal air pressure in the system within _____.

• 60 seconds

• 10 minutes

• 30 minutes

• 60 minutes

The connection pipe from the air supply to the dry pipe valve shall not be less than _____ in diameter and shall enter the sytem aove the priming water level of the dry pipe valve.

• 1/4 inch

• 1/2 inch

• 3/4 inch

• 1 inch

For deluge systems, the detection devices or systems shall be _____ supervised.

• automatically

• manually

• automatically or manually

• hydraulically

________ shall not be used in lieu of heated valve enclosures to protect the valve and supply pipe from freezing.

• heat tracing

• body heat

• heat paint

• a small gas torch

A ________ with a connection conforming to section 16.7 shall be provided on each wet pipe system utilizing metallic pipe.

• priming valve

• single mechanical outlet

• single air vent

• contoured steel pipe

Dry pipe systems are _______ than wet pipe systems and require greater attention regarding their design, installation, and maintenance.

• less complicated

• more complex

• cheaper to install

• slightly heavier