S13 Practice Test

Control valve signs must indicate the portion of the system controlled by the valve to ensure proper operation and maintenance.

The primary purpose of a roof manifold is to facilitate firefighter operations on the roof by providing multiple hose connections at the highest point of the standpipe system.

According to FDNY regulations, if a standpipe system is expected to be out of service for more than 4 hours in an occupied building, a fire watch must be implemented until the system is restored to service.

According to NFPA 1962, occupant-use hoses must be service-tested at least every 5 years after their initial installation and every 3 years thereafter.

Local Law 58 of 2009 requires buildings with occupied floors more than 75 feet above the lowest level of fire department vehicle access to have a secondary water supply.

While inspection reports, maintenance logs, and system modification history are required records, employee training records are not specifically mandated for standpipe system documentation.

NFPA 25 requires a flow test to be conducted on standpipe systems every 5 years to ensure the system can provide the required flow and pressure.

Preaction standpipe systems typically require the activation of a fire detection system (such as smoke or heat detectors) before water is admitted into the piping, providing an additional layer of protection against accidental discharge.

While Certificate of Fitness S-13 holders, Licensed Master Plumbers, and Registered Design Professionals are authorized to perform visual inspections, a Building Superintendent is not specifically authorized unless they hold one of the other qualifications.

Jockey pumps maintain pressure in the system to compensate for small leaks and pressure fluctuations, preventing unnecessary activation of the main fire pump.

OS&Y (Outside Screw and Yoke) valves are typically used as main control valves in standpipe systems because their open/closed status is easily visible, enhancing system supervision and safety.

In a combination system, the pressure tank's primary purpose is to maintain system pressure, while the gravity tank provides the main water supply.

Vertical turbine pumps are often used in high-rise buildings due to their ability to generate high pressures necessary for tall structures and their compact vertical design.

The primary difference between wet and dry standpipe systems is that wet systems are constantly filled with water, while dry systems are filled with pressurized air or nitrogen and only fill with water when activated.

While the building owner is responsible for ensuring the system is maintained, investigating activations, and correcting defects, they are not required to personally conduct all inspections and tests. These can be performed by qualified individuals or licensed professionals.