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NFPA CWBSP Prüfungsplan:

Thema	Einzelheiten
Thema 1	Project Development: In this topic of the CWBSP exam, Water-Based Fire Protection System Designers will be assessed on their ability to understand project scope, identify occupancy types, and review contract documents. Designers will need to demonstrate proficiency in evaluating plans, specifications, and submittal approval requirements, ensuring their capability to manage the foundational stages of a water-based fire protection system design.
Thema 2	Design System Layouts: In this part of the exam, Water-Based Fire Protection System Designers will be tested on their ability to design appropriate water-based fire protection systems. Designers must determine system types, evaluate water supply, and design layouts, including hangers and bracing. The exam will assess compliance with contracts, codes, and standards, as well as coordination with other systems.
Thema 3	Survey Existing Systems: This topic tests the designer's skills in reviewing and assessing existing fire protection systems. Designers will be evaluated on their ability to evaluate system components, identify needs, and verify compliance with codes. Additionally, they must demonstrate competence in understanding inspection, testing, and coordinating interfaces between systems to ensure compliance and system adequacy.
Thema 4	Hydraulic Calculations: The hydraulic calculations topic evaluates a designer’s understanding of hydraulic formulas and design methods. Designers will be tested on their ability to apply these principles, particularly in evaluating the hydraulically most remote calculation area. This topic is critical to ensuring the efficiency and effectiveness of the fire protection system.

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NFPA Certified Water-Based Systems Professionals CWBSP Prüfungsfragen mit Lösungen (Q77-Q82):

77. Frage
A owner of a new warehouse wishes to store a Class III product in ordinary cardboard boxes that contain 45 percent by volume expanded plastic. What is the commodity classification?

A. Cartoned, Group A, unexpanded plastic
B. Cartoned, Class III
C. Cartoned, Group A, expanded plastic
D. Cartoned, Class IV

Antwort: C

Begründung:
Cardboard boxes containing 45 percent by volume of expanded plastic are classified as Cartoned, Group A, expanded plastic. This classification reflects the high combustibility and potential fire challenge presented by the expanded plastic content.
References: Commodity classification systems in NFPA standards, which categorize materials based on their combustibility and behavior in fire conditions.

78. Frage
Annual testing for a 1,500 gpm (5,677 L/min) at 80 psi (1.4 bar) fire pump supporting an attached sprinkler system demand of 1,800 gpm (6,813 L/min) at 100 psi (6.9 bar) is being conducted. The flow test of the fire pump must achieve what minimum flow rate and discharge pressure?

A. 2,250 gpm (8,516 L/min) at 65 psi (4.5 bar)
B. 1,600 gpm (6,056 L/min) at 75 psi (5.1 bar)
C
1,800 gpm (6,813 L/min) at 100 psi (6.9 bar)
C. 1,500 gpm (5,677 L/min) at 80 psi (1.4 bar)

Antwort: A

Begründung:
For annual testing of fire pumps, NFPA standards require the pump to be tested at its rated capacity and pressure, as well as at 150% of its rated capacity at a correspondingly lower pressure. In this scenario, the minimum flow rate required for the test is the demand of the attached sprinkler system, which is 1,800 gpm at
100 psi, to ensure the pump can meet or exceed the system's highest demand.
References: NFPA 13, NFPA 20, and CWBSP materials provide guidance on fire pump testing, indicating that pumps should be tested for both rated and excess capacities to ensure they can handle the required system demand.

79. Frage
The minimum diameter of a private service main to a hydraulically calculated sprinkler system that also supplies a fire hydrant is

A. 8 in. (200 mm).
B. 6 in. (150 mm).
C. 4 in. (100 mm).
D. 3 in. (75 mm).

Antwort: B

Begründung:
A minimum diameter of 6 inches for a private service main is common when the system also supplies a fire hydrant, ensuring adequate water supply for both the sprinkler system and firefighting needs.
References: NFPA standards and best practices related to water supply requirements for fire protection systems, ensuring sufficient capacity for hydrant and sprinkler system demands.

80. Frage
When backflow prevention valves are installed on existing pipe scheduled systems, the friction losses of the device shall be accounted for when determining

A. static pressure.
B. residual pressure.
C. system GPM requirements.
D. system flow requirements.

Antwort: B

Begründung:
When backflow prevention devices are added to a system, their associated friction losses can affect the residual pressure available for the sprinkler system operation. Therefore, it's important to account for these losses to ensure the system maintains the required pressure during operation.
References: NFPA 13 includes considerations for the installation of backflow preventers and their impact on system design, emphasizing the need to account for device-related friction losses to maintain adequate residual pressure in the sprinkler system.

81. Frage
What is the required minimum design density/area for protection of floor stacked, idle wood pallets to a height of
8 ft (2.4 m) under a 30 ft (9.1 m) roof deck using high expansion foam with a K11.2 (160) CMDA sprinkler?

A. 0.225 gpm/ft2 (9.15 mm/min) over 1,250 ft2 (115 m2)
B. 0.225 gpm/ft2 (9.15 mm/min) over 2,500 ft2 (230 m2)
C. 0.45 gpm/ft2 (18.3 mm/min) over 1,250 ft2 (115 m2)
D. 0.45 gpm/ft2 (18.3 mm/min) over 2,500 ft2 (230 m2)

Antwort: B

Begründung:
For floor-stacked idle wood pallets, a design density of 0.225 gpm/ft² over a minimum design area is typically used for calculating water supply requirements. The larger area option (2,500 ft²) provides a more conservative approach to ensuring adequate protection.
References: Fire protection strategies for storage using NFPA 13 guidelines, considering the specific challenges posed by combustible commodities like wood pallets.

82. Frage
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