S-12 DEFINITIONS

Question 0

A Deluge Sprinkler System Is?

Answer 0

A sprinkler system employing automatic sprinklers that are attached to a piping system that is connected to a water supply through a valve that is opened by a detection system installed in the same areas as the sprinklers.

Question 1

A Deluge Valve is?

Answer 1

A water supply control valve intended to be operated by actuation of an automatic detection system that is installed in the same area as the discharge devices.

Question 2

What is a Dry Sprinkler?

Answer 2

A sprinkler secured in an extension nipple that has a seal at the inlet to prevent water from entering the nipple until the sprinkler operates. May be configured with an upright, pendent or sidewall sprinkler.

Question 3

What is a Dry Pipe Sprinkler System?

Answer 3

A sprinkler system employing automatic sprinklers that are attached to a piping system containing air or nitrogen under pressure. The release of the air or nitrogen (as from the opening of a sprinkler) results in the water pressure opening a valve called a dry pipe valve, resulting in the flow of water into the piping system and out of the fused sprinkler heads.

Question 4

What is a Discharge Device?

Answer 4

A device designed to discharge water or foam-water solution in a predetermined, fixed or adjustable pattern. Examples include, but are not limited to, sprinklers, spray nozzles, and hose nozzles.

Question 5

What is an Early Suppression Fast Response Sprinkler (ESFR) ?

Answer 5

A type of fast response sprinkler that is listed for its capability to provide fire suppression of specific high fire challenge hazards.

Question 6

An Extra Large Orifice Sprinkler (ELO) is?

Answer 6

a sprinkler head with an orifice size equal to or greater than 1”. Particularly for protection of high piled storage in warehouses and less pressure is required to achieve a given discharge density.

Question 7

Define Extended Coverage Sprinklers:

Answer 7

A type of spray sprinkler with a maximum area of coverage of 400 sq ft (20 foot by 20 foot spacing between sprinklers) for light hazard occupancies to a maximum of 144 square feet (12 foot by 12 foot spacing between sprinklers) for extra hazard occupancies.

Question 8

Define Fire depart connection:

Answer 8

A connection, normally on the exterior of the building, through which the fire department can pump supplemental water into the sprinkler system, standpipe, or other system furnishing water for fire extinguishment to supplement existing water (Formerly known as Siamese connection).

Question 9

What is a hydraulic placard?

Answer 9

A sign attached to a hydraulically calculated system indicating the design density, required gallons per minute and pressure for the system to operate properly.

Question 10

Define Hydraulically calculated systems:

Answer 10

A method of sizing automatic sprinkler piping using a prescribed amount of water to be distributed over a specific area

Question 11

Define impairment coordinator:

Answer 11

The person responsible for ensuring that proper safety precautions are taken when a fire protection system is placed out of service.

Question 12

Define intermediate level sprinkler/Rack Storage Sprinkler:

Answer 12

A sprinkler equipped with integral shields to protect the operating element from discharge from sprinklers installed at higher elevations.

Question 13

Define Large orifice sprinkler:

Answer 13

A sprinkler head with an orifice size equal to or greater than 3/4” and less than 1”

Question 14

Define listed device:

Answer 14

A fire protection component that had been tested to perform under parameters specified for its use by a nationally recognized testing agency.
Underwriter’s (UL) and factory mutual are the two most common

Question 15

Define master pressure reducing valve:

Answer 15

A pressure reducing valve installed to regulate pressures in an entire fire protection system and / or standpipe system zone.

Question 16

Define Main drain:

Answer 16

The primary drain connection located on the system riser and also utilized as a flow test connection

Question 17

Define Old style/conventional sprinkler:

Answer 17

A sprinkler that directs 40% to 60% of the water initially in a downward direction and is designed to be installed with the deflector in either the upright or pendent position.

Question 18

Define Pendent Sprinkler:

Answer 18

A sprinkler designed to be installed in such a way that the water stream is directed downward against the deflector.

Question 19

What is a preaction sprinkler system:

Answer 19

A sprinkler system employing automatic sprinklers that are attached to a piping system that contains air that may or may not be under pressure, with supplemental detection system installed in the same area as the sprinklers.

Question 20

Personal Supervision:

Answer 20

Supervision by the holder of a FDNY C.O.F. Who is required to personally present on the premises, or other proximate location acceptable to the department, while performing duties for which the certificate is required.

Question 21

Pressure Tank:

Answer 21

A tank using air pressure to supplying water for water-based fire protection systems. Tank contents to be maintained at one third air to two thirds water

Question 22

Quick response sprinkler head:

Answer 22

A sprinkler having a fusible link with a response time index(RTI) of 50 or less

Question 23

Recessed Sprinkler:

Answer 23

A sprinkler in which all or part of the body, other than the shank thread, is mounted above the ceiling.

Question 24

Response time index (RTI):

Answer 24

A measurement of the thermal sensitivity of a sprinkler head expressed in ( meters-seconds)1/2.

Question 25

Define sprinkler identification number (SIN)

Answer 25

sprinklers manufactured after January 31st are required to be marked to identify performance characteristics.

Question 26

Side wall sprinkler:

Answer 26

A sprinkler having special deflectors that are designed to discharge most of the water away from the nearby wall.

Question 27

Solder link sprinkler:

Answer 27

A sprinkler system operated by the melting of a metal link

Question 28

Supervisory signal-initiating device:

Answer 28

An imitating device such as valve supervisory switch, water level indicator, or low air pressure switch on a dry pipe or pre-action sprinkler system, that triggers a supervisory signal.

Question 29

Wet pipe sprinkler system:

Answer 29

A sprinkler system employing automatic sprinklers attached to a piping system containing water and connected to a water supply so that water discharges immediately from sprinklers opened by heat from a fire.