Fire-Inspector-II Exam Dumps - 67 - Fire Inspector II Exam

Hazardous occupancies involved in organic coatings manufacturing are classified as Group H-2 or H-3 occupancies under the 2021 IFC. These facilities involve highly flammable materials, requiring both manual and automatic fire alarm systems for safety.

IFC 2021, Section 415.7 – Organic Coatings Manufacturing:

Requires that automatic fire alarm and manual fire alarm systems be installed due to the high risk of fire and explosion in these facilities.

IFC 907.2.4 – Fire Alarm Systems for Group H Occupancies:

Specifies that Group H (high-hazard) occupancies must have both manual and automatic fire alarm systems.

The automatic fire alarm system ensures immediate detection, while the manual system allows for human activation in case of emergencies.

Why Other Options Are Incorrect?

A. Do not require a fire alarm system.

Incorrect, as all high-hazard occupancies require fire alarm systems.

B. Require only a manual fire alarm system.

Incorrect, as automatic detection is also required due to high fire risk.

C. Require only an automatic fire alarm system.

Incorrect, as manual activation is necessary for early intervention.

✅ Correct Answer: D. Require both manual and automatic fire alarm systems.

The fire-resistance rating requirements for different building elements in Type IV (Heavy Timber) construction are specified in the 2021 International Building Code (IBC), Table 601 – Fire-Resistance Rating Requirements for Building Elements (Hours).

IBC Table 601 – Fire Resistance for Type IV Construction:

Interior nonbearing walls and partitions in Type IV construction require 0 hours of fire resistance.

This is because Type IV construction primarily relies on large, heavy timber elements that provide inherent fire resistance.

Why Other Options Are Incorrect?

B. 1 hour – Incorrect, as nonbearing interior walls in Type IV construction are not required to have a fire-resistance rating.

C. 1-1/2 hours – Not required by code.

D. 2 hours – Only structural elements like exterior walls in some cases may require fire resistance, but nonbearing interior partitions do not.

✅ Correct Answer: A. 0 hours

The requirement for panic hardware on exit doors is specified in 2021 IFC Section 1010.2.9 – Panic and Fire Exit Hardware.

IFC Section 1010.2.9.1 – Where Panic Hardware is Required:

Panic hardware is required for Group A (Assembly) occupancies when the occupant load is 50 or more.

It is also required in certain Group E (Educational) and Group R-1 (Hotels and Dormitories) occupancies under specific conditions.

Why Other Options Are Incorrect?

A. 10; A – The threshold for panic hardware in Group A occupancies is 50, not 10.

C. 50; M – Group M (Mercantile) does not require panic hardware unless specifically required by another section of the code.

D. 100; F – Panic hardware is not required in Group F (Factory) occupancies at 100 occupants; the threshold applies primarily to Group A.

ï‚· Reference to Explosive Storage Regulations:

The International Fire Code (IFC 2021), Section 5604 and NFPA 495 (Explosive Materials Code) regulate the storage distances for Class 1.3 explosives (which include low explosives such as propellants and display fireworks).

Table 5604.5.2(3) of the IFC provides minimum separation distances between explosives storage and public traffic routes based on the weight of the explosives.

ï‚· Determining the Correct Distance:

According to IFC Table 5604.5.2(3), for 1,750 lb. of Class 1.3 explosives, the minimum separation distance from a public traffic route is 115 feet.

ï‚· Clarification of Incorrect Answer Choices:

A. 50 ft. → Incorrect

50 feet is too close and does not meet the safety requirements for explosive storage.

B. 75 ft. → Incorrect

75 feet is insufficient based on IFC and NFPA separation tables.

D. 150 ft. → Incorrect

While more distance is safer, the minimum requirement is 115 feet, making 150 feet unnecessary per code.

ï‚· Conclusion:

The correct and verified answer is C (115 feet) based on IFC Table 5604.5.2(3) and NFPA 495 requirements for Class 1.3 explosives storage near public traffic routes.

To determine the maximum number of students permitted in a classroom, we must follow the occupant load calculation based on the 2021 International Building Code (IBC) and International Fire Code (IFC).

Step 1: Calculate the Room Area

The classroom measures 20 ft. x 30 ft., so the total area is:

20×30=600 sq. ft.20 \times 30 = 600 \text{ sq. ft.}20×30=600 sq. ft.

Step 2: Subtract the Area Occupied by Fixed Tables

Each table measures 4 ft. x 8 ft., so its area is:

4×8=32 sq. ft. per table4 \times 8 = 32 \text{ sq. ft. per table}4×8=32 sq. ft. per table

Since there are 4 tables:

32×4=128 sq. ft. occupied by tables32 \times 4 = 128 \text{ sq. ft. occupied by tables}32×4=128 sq. ft. occupied by tables

Step 3: Determine the Usable Space for Students

600−128=472 sq. ft. available600 - 128 = 472 \text{ sq. ft. available}600−128=472 sq. ft. available

Step 4: Apply the Occupant Load Factor

According to 2021 IBC Table 1004.5 (Occupant Load Factor), the factor for a classroom with tables and chairs is 20 sq. ft. per person.

472÷20=23.6472 \div 20 = 23.6472÷20=23.6

Since the occupant load must be rounded down, the maximum number of students is 24.

Reference to Fire Inspector Documentation:

1. 2021 International Building Code (IBC) – Table 1004.5 (Occupant Load Factor)

A classroom with tables and chairs requires 20 sq. ft. per occupant.

This method ensures compliance with egress and fire safety requirements.

2. 2021 International Fire Code (IFC) – Section 1004.1 (Occupant Load Determination)

The IFC states that occupant load is based on net usable floor area and must follow IBC Table 1004.5.

Detailed Explanation of Answer Choices:

Option A (Incorrect): 12 students would be too low based on the calculations.

Option B (Correct): 24 students is the accurate calculation following IBC 1004.5.

Option C (Incorrect): 30 students would exceed the available space per code.

Option D (Incorrect): 40 students is far above the allowed maximum.

Thus, the correct and verified answer is: B. 24.

ï‚· Reference to Halon 1211 Hand-Hose-Line System Requirements:

NFPA 12A (Standard on Halon 1211 Fire Extinguishing Systems), Section 6.5, states that all hoses for high-pressure Halon 1211 hand-hose-line systems must be tested at 1,500 psi to ensure they can withstand operational pressure without failure.

The International Fire Code (IFC 2021), Section 904.10, also references the requirements for Halon 1211 systems, ensuring proper testing for system integrity.

ï‚· Purpose of Pressure Testing:

High-pressure Halon 1211 systems operate under significant force, and hose failures could result in loss of fire suppression capability or safety hazards.

Testing at 1,500 psi ensures hoses can handle peak pressures without rupture or degradation over time.

ï‚· Clarification of Incorrect Answer Choices:

A. 600 psi → Incorrect

Too low for high-pressure systems, insufficient to verify hose integrity.

B. 900 psi → Incorrect

Below the required 1,500 psi standard for high-pressure Halon 1211 hoses.

D. 2,500 psi → Incorrect

Exceeds the required test pressure per NFPA 12A; unnecessary over-testing could damage hoses.

ï‚· Conclusion:

The correct and verified answer is C (1,500 psi) based on NFPA 12A and IFC 904.10, ensuring compliance with Halon 1211 high-pressure system testing standards.

Reference to Fire Inspection Procedures for Handling Complaints:

According to the International Fire Code (IFC 2021), Section 104.11, fire inspectors are responsible for investigating complaints regarding fire hazards or code violations.

The first step in responding to a citizen complaint is to record all pertinent information about the issue.

2. Steps in Handling a Fire Safety Complaint:

Step 1: Record detailed information about the complaint, including:

Complainant’s name and contact information (if available).

Address and description of the building.

Nature of the alleged fire hazard or code violation.

Step 2: Verify the history of past violations (if necessary).

Step 3: Conduct an inspection to determine if a violation exists.

Step 4: Take appropriate enforcement action, if needed.

3. Clarification of Incorrect Answer Choices:

B. Investigate the history of the building → Incorrect

While past violations can provide context, the first step is to record the details of the current complaint before investigating further.

C. Forward the complaint to the senior inspector → Incorrect

Inspectors do not need to escalate every complaint immediately; instead, they should gather relevant information first.

D. Inform the owner of the building that a complaint has been filed against him → Incorrect

Not all complaints result in violations, and notifying the owner prematurely may lead to unnecessary disputes or conflicts.

The inspector should first verify the validity of the complaint before notifying the owner.

4. Conclusion:

The correct and verified answer is A (record all pertinent information) as per IFC 104.11 and fire inspection best practices.

Minimum Working Space Width for Electrical Equipment Panels

According to National Electrical Code (NEC) 110.26(A)(2) and International Fire Code (IFC) 2021, Section 604.3, the minimum working space width for electrical equipment must be at least the width of the equipment or 30 inches, whichever is greater.

Since the equipment panel in the question is 66 inches wide, the required working space width must be at least 66 inches.

2. Why 66 Inches is the Correct Answer

The minimum clearance width must be equal to the width of the electrical equipment if the panel itself is wider than 30 inches.

This ensures safe maintenance and emergency access to electrical components.

3. Verification of Other Options

Option A (30 inches) – Incorrect, because the equipment is wider than 30 inches, requiring a larger clearance.

Option B (36 inches) – Incorrect, as this is not the requirement for a 66-inch-wide panel.

Option D (78 inches) – Incorrect, as the clearance does not need to exceed the width of the panel.

Reference Sources:

National Electrical Code (NEC) 2023 – Section 110.26(A)(2) (Working Space Width Requirements)

International Fire Code (IFC) 2021 – Section 604.3 (Electrical Equipment Clearance Requirements)

ICC Fire Inspector II Study Guide (2021)