CFI-I 시험 - NFPA실제시험문제와 답 - 100문항

Question No : 1

In occupancies where a Class A or Class B interior finish is required, which of the following is the allowable amount of Class C materials?

A.5 percent
B.10 percent
C.15 percent
D.20 percent

정답:
Explanation:
The use of interior finish materials is regulated by NFPA 101®, Life Safety Code®, Section 10.2.3. In occupancies where Class A or Class B interior finishes are required:
A limited percentage of Class C materials may be allowed as incidental decoration or finish, provided it does not pose significant fire risk.
The allowable amount of Class C materials is limited to 10 percent of the total wall and ceiling area within the space.
This restriction ensures that the overall fire performance of the interior finish remains within acceptable safety limits.
5 percent (A): Too restrictive compared to NFPA allowances.
15 percent (C) and 20 percent (D): Exceed the permissible amount under Class A or B requirements.
Reference: NFPA 101, Section 10.2.3: Interior finish requirements and allowable material classifications

Question No : 2

In new health care occupancies, unattended soiled linen receptacles that exceed the permitted capacity must be located in which one of the following locations?

A.Corridor
B.Nurses station
C.Hazardous area
D.Patient room

정답:
Explanation:
In health care occupancies, soiled linen receptacles pose a fire and contamination risk if they exceed allowable capacity. According to NFPA 101®, Life Safety Code®, Section 18.7.5.7:
Soiled linen receptacles exceeding 32 gallons (121 liters) in capacity must be stored in a hazardous area (C).
A hazardous area is a space specifically designed with fire-rated enclosures and safety measures to contain risks associated with combustible materials.
Corridor (A): Storing large soiled linen containers in corridors is prohibited to ensure clear egress pathways.
Nurses station (B) and Patient room (D): These are not designated hazardous areas and are inappropriate for storing excessive amounts of soiled linens.
Reference: NFPA 101, Section 18.7.5.7: Storage and location requirements for soiled linen and trash receptacles.

Question No : 3

Where shall fire department connections on wet-pipe automatic sprinkler systems be located?

A.On the system side of the water supply check valve
B.On the suction side of booster pumps
C.On the supply side of the check valve in a single-riser system
D.Above the dry-pipe valve on a single-riser dry-pipe system

정답:
Explanation:
The placement of the fire department connection (FDC) for a wet-pipe automatic sprinkler system is governed by NFPA 13, Standard for the Installation of Sprinkler Systems.
The FDC must be located on the system side of the water supply check valve (A). This ensures that the fire department can pump water into the system effectively and directly supply the sprinkler system during an emergency.
Suction side of booster pumps (B): This placement would not supply water correctly to the system during firefighting operations.
Supply side of the check valve (C): This would prevent water from entering the sprinkler system since the check valve blocks backflow from the FDC.
Above the dry-pipe valve (D): This applies to dry-pipe systems, not wet-pipe systems.
Reference: NFPA 13, Section 8.17.2.4: Location requirements for fire department connections.

Question No : 4

The appropriateness of the safeguards required by the Life Safety Code to individual buildings and structures bears due regard to all EXCEPT which of the following?

A.Age of the building
B.The fire load of the occupancy
C.Number of persons exposed
D.Capabilities of the occupants

정답:
Explanation:
The Life Safety Code (NFPA 101®) ensures that fire and life safety safeguards are appropriate to the risks posed by a building or occupancy.
Key considerations include:
Fire load of the occupancy (B): The quantity and combustibility of materials influence fire severity and spread.
Number of persons exposed (C): Occupant load determines evacuation requirements and system capacities.
Capabilities of the occupants (D): Includes factors like mobility, age, and ability to respond to emergencies.
The age of the building (A) is not a primary factor under the Life Safety Code. Safeguards apply regardless of a building’s age, as older buildings may still require updates to meet current safety standards.
Reference: NFPA 101, Section 4.6.6: Considerations for applying safeguards in buildings and structures

Question No : 5

What is the minimum static pressure drop required when flow testing fire hydrants?

A.5 percent
B.10 percent
C.15 percent
D.20 percent

정답:
Explanation:
When performing a fire hydrant flow test, a minimum static pressure drop is required to ensure that the test provides accurate and meaningful results. According to NFPA 291, Recommended Practice for Fire Flow Testing and Marking of Hydrants:
A 10 percent pressure drop is the minimum acceptable difference between the static pressure (no flow) and residual pressure (while flowing).
This drop ensures that water flow is sufficient for an accurate test and reflects the system’s capacity under actual fire conditions.
5 percent (A): Too low to provide reliable results.
15 percent (C) and 20 percent (D): Higher drops are acceptable but not the minimum requirement.
Reference: NFPA 291, Section 4.9: Static pressure drop requirements during flow testing.

Question No : 6

Which of the following conditions gives an inspector the right to enter a private dwelling to conduct a fire inspection?
I. The consent of the occupant
II. Possession of a warrant authorizing entry
III. A written complaint from a citizen regarding the property in question
IV. When emergency exists

A.I and II
B.I, II, and IV
C.II, III, and IV
D.I, II, III, and IV

정답:
Explanation:
An inspector’s right to enter a private dwelling is governed by legal and fire code principles:
Consent of the occupant (I): The occupant may grant permission for the inspection voluntarily.
Warrant authorizing entry (II): If consent is not provided, a legal warrant may be obtained for inspection purposes.
Written complaint (III): A credible written complaint may justify inspection to investigate a fire code violation.
Emergency exists (IV): In emergencies (e.g., imminent danger to life or property), an inspector may enter without consent or a warrant.
All four conditions are valid, making the correct answer D.
Reference: NFPA 1, Section 1.7.7: Right of entry for fire inspections.
Legal standards for administrative searches and emergencies.

Question No : 7

When may acoustical and decorative materials such as cotton, hay, paper, straw, moss, split bamboo, and wood chips be used as decorations within an assembly occupancy?

A.Materials not permitted
B.When small quantities are used
C.When they meet independent third-party certification
D.When flame-retardant treated to the satisfaction of the AHJ

정답:
Explanation:
Acoustical and decorative materials pose a significant fire hazard due to their combustibility.
According to NFPA 101®, Life Safety Code®, Section 10.3.1, and related standards:
Such materials may only be used if they are flame-retardant treated or inherently noncombustible.
The treatment must be to the satisfaction of the Authority Having Jurisdiction (AHJ), ensuring compliance with testing requirements (e.g., NFPA 701).
Small quantities (B): Even small quantities can pose risks, so this is insufficient justification. Third-party certification (C): While helpful, AHJ approval is still required.
Reference: NFPA 101, Section 10.3.1: Requirements for interior finishes, decorations, and trim.
NFPA 701: Testing standards for flame retardancy of textiles and materials.

Question No : 8

A document issued by the authority having jurisdiction for the purpose of authorizing performance of a specific activity would best be described as which of the following?

A.Permission
B.Approval
C.Acceptance
D.Permit

정답:
Explanation:
The Authority Having Jurisdiction (AHJ) is responsible for authorizing specific activities to ensure compliance with fire and safety codes. This authorization is formalized in the form of a permit:
Permit (D): A permit is a legal document issued to authorize the performance of specific activities, such as construction, hazardous material storage, or system installation.
Permission (A): While related, "permission" is a general term and not an official document.
Approval (B): "Approval" indicates the AHJ has reviewed and accepted a plan or system but does not authorize ongoing activity.
Acceptance (C): "Acceptance" refers to confirmation that something (e.g., a system installation) complies with standards after inspection.
Reference: NFPA 1, Fire Code, Chapter 1.12: Permit issuance and AHJ responsibilities

Question No : 9

After conducting the annual test of a dry barrel hydrant, what is the maximum length of time permitted for full drainage to take place?

A.10 minutes
B.15 minutes
C.30 minutes
D.60 minutes

정답:
Explanation:
Dry barrel hydrants must be tested annually to ensure proper drainage and operation. According to NFPA 25, Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems:
After testing, full drainage of the hydrant must occur within 15 minutes. This ensures no residual water remains in the hydrant barrel, which could freeze in cold climates and damage the hydrant.
If the hydrant fails to drain within 15 minutes, it indicates an obstruction or malfunction in the drainage system that must be corrected.
10 minutes (A): Not enough time for standard drainage.
30 minutes (C) and 60 minutes (D): Exceed the acceptable limit defined by NFPA 25.
Reference: NFPA 25, Section 7.3.2: Annual testing and drainage requirements for dry barrel hydrants.

Question No : 10

What is the classification for a building that does not qualify as a one- or two-family dwelling and provides sleeping accommodations for a total of 16 or fewer people on a transient or permanent basis, without personal care services, with or without meals, and without separate cooking facilities for individual occupants?

A.Dormitory
B.Hotel
C.Boarding facility
D.Lodging or rooming house

정답:
Explanation:
The classification of buildings for sleeping accommodations is outlined in NFPA 101®, Life Safety Code®.
Lodging or rooming house (D): This classification applies to buildings providing sleeping accommodations for 16 or fewer people on a transient or permanent basis, without personal care services or separate cooking facilities.
Dormitory (A): A dormitory typically provides sleeping accommodations for more than 16 people in group living settings.
Hotel (B): A hotel provides transient accommodations for larger numbers of occupants, often with amenities like separate cooking facilities.
Boarding facility (C): Boarding facilities include personal care or longer-term services, which are not specified here.
Reference: NFPA 101, Section 6.1.2.4: Definitions of lodging or rooming houses.

Question No : 11

A fire inspector is inspecting a fast-food restaurant that has an indoor playground structure exceeding 10 ft (3.1 m) in height and 160 ft³ (14.9 m²) in area.
Which of the following statements is true regarding combustible materials used in the playground structure's construction?

A.Combustible materials are not permitted
B.Class II interior floor finish is permitted
C.Wood components may be treated or non-treated
D.Foam plastics with a heat-release rate less than 100 kW are permitted

정답:
Explanation:
Indoor playground structures are subject to material restrictions to prevent excessive fire risk.
According to NFPA 101®, Life Safety Code®, Section 12.4.8.6, and related codes:
Combustible materials (A): Not all combustibles are prohibited; specific limits and fire-retardant materials are allowed.
Class II floor finish (B): This applies to interior finishes but does not directly address playground structure construction.
Wood components (C): Untreated wood is not acceptable in this case; treated materials might be allowed but are not sufficient alone.
Foam plastics (D): Foam plastics are permitted if the heat-release rate is less than 100 kW when tested per NFPA 289. This ensures they do not contribute significantly to fire growth.
Reference: NFPA 101, Section 12.4.8.6: Material requirements for indoor playground structures.
NFPA 289: Standard test method for fire testing of foam plastics.

Question No : 12

What is the maximum length of dead-end corridors in new mercantile occupancies protected by a supervised automatic sprinkler system?

A.20 ft (6 m)
B.50 ft (15 m)
C.75 ft (23 m)
D.100 ft (30 m)

정답:
Explanation:
Dead-end corridors are portions of a hallway that do not lead to an exit, posing challenges for occupant evacuation during a fire. According to NFPA 101®, Life Safety Code®, Section 36.2.5.2 (New Mercantile Occupancies):
In buildings equipped with a supervised automatic sprinkler system, the maximum allowable length of a dead-end corridor is 75 feet (23 meters).
Without a sprinkler system, the limit is typically much shorter, such as 20 feet (6 meters) or 50 feet (15 meters) depending on occupancy type.
20 ft (A) and 50 ft (B): These limits apply to unsprinklered or higher-risk occupancies. 100 ft (D): This exceeds the allowable limit, even with sprinklers.
Reference: NFPA 101, Section 36.2.5.2: Dead-end corridor limits for mercantile occupancies

Question No : 13

Which system piping contains air or nitrogen under pressure at all times?

A.Standard dry-pipe system
B.Wet-piping system
C.Preaction system
D.Deluge system

정답:
Explanation:
The various sprinkler systems are differentiated by the type of fluid or gas in the piping and how they operate:
Standard dry-pipe system (A): Contains air or nitrogen under pressure in the piping at all times. When a sprinkler activates, the pressure is released, allowing water to flow into the pipes and out of the sprinkler heads.
Wet-piping system (B): Contains water in the piping at all times.
Preaction system (C): Contains air or nitrogen under pressure, but water is introduced only when specific detection systems activate.
Deluge system (D): Piping is normally dry, and all sprinklers open simultaneously when a detection system triggers water flow.
Reference: NFPA 13, Chapter 7: Types and operation of sprinkler systems.

Question No : 14

To transfer Class I flammable liquids by pressurizing the tank, which of the following conditions must be met?
I. Inert gas is used to pressurize the tank.
II. Air is used to pressurize the tank.
III. A pressure relief device shall be provided.
IV. An interlock shall be installed on the container.

A.I and III
B.I and IV
C.II and III
D.II and IV

정답:
Explanation:
Transferring Class I flammable liquids involves strict safety conditions to prevent fire or explosion risks. According to NFPA 30, Flammable and Combustible Liquids Code:
Inert gas (I): Pressurizing the tank with inert gas (e.g., nitrogen) is required to prevent the creation of a flammable atmosphere. Air (II) is not acceptable because it introduces oxygen, which can result in combustion.
Pressure relief device (III): A pressure relief device is mandatory to prevent over-pressurization, which could cause a tank failure or explosion.
Interlock (IV): While useful for operational safety, it is not specifically required for pressurizing tanks.
Reference: NFPA 30, Chapter 18: Requirements for transferring flammable liquids under pressure.

Question No : 15

At what minimum pressure would automatic sprinkler piping be hydrostatically tested if the maximum system pressure is 175 psi (12 bar)?

A.175 psi (12 bar)
B.200 psi (13.8 bar)
C.225 psi (15.5 bar)
D.250 psi (17 bar)

정답:
Explanation:
According to NFPA 13, Standard for the Installation of Sprinkler Systems, all sprinkler piping must undergo a hydrostatic test to verify its strength and leak resistance.
Hydrostatic testing must be conducted at a pressure of 200 psi (13.8 bar) or 50 psi (3.4 bar) greater than the system’s maximum working pressure, whichever is higher.
Since the maximum system pressure is 175 psi, the test pressure must be at least 200 psI. 175 psi (A) is the system pressure, not the test pressure. 225 psi (C) and 250 psi (D) exceed the required test pressure.
Reference: NFPA 13, Section 25.2.1.1: Hydrostatic test requirements for sprinkler piping.

NFPA CFI-I 시험