FPE Risk Management & Site Safety 5

Question 1

Which of the following BEST defines 'inherently safer design' (ISD) as applied to fire and explosion risk in chemical process facilities?

Accepted Answer

Eliminating or reducing hazards at their source—by substituting less hazardous materials, minimizing inventories, or moderating process conditions—rather than controlling them

Answer

Adding more layers of protection (sprinklers, gas detectors, deluge) to a high-hazard process

Answer

Designing equipment to meet the highest applicable pressure vessel code

Answer

Relying on passive fire protection (fireproofing, fire walls) instead of active suppression

Question 2

A fire protection engineer is asked to assess the risk of fire spread in a multi-story atrium building. The MOST critical factor influencing smoke movement and tenability in the atrium is:

Accepted Answer

The stack effect driven by temperature differential between inside and outside air, combined with the height of the atrium

Answer

The occupancy classification of the ground-floor retail tenants

Answer

The fire resistance rating of the atrium floor/ceiling assembly

Answer

The type of sprinkler head selected for the atrium roof

Question 3

Under NFPA 101 (Life Safety Code), which occupancy classification requires an AUTOMATIC fire detection system in ALL cases, regardless of the presence of an automatic sprinkler system?

Accepted Answer

Health care occupancy

Answer

Business occupancy (three stories or fewer)

Answer

Mercantile occupancy (single story, open plan)

Answer

Industrial occupancy (low hazard)

Question 4

In developing an emergency response plan for a facility with on-site hazardous materials, coordination with the Local Emergency Planning Committee (LEPC) is required under which US regulation?

Accepted Answer

EPCRA (Emergency Planning and Community Right-to-Know Act, 42 USC 11001)

Answer

OSHA PSM (29 CFR 1910.119)

Answer

RCRA (Resource Conservation and Recovery Act)

Answer

Clean Air Act Section 112(r) RMP Rule

Question 5

When applying the SFPE Engineering Guide to Performance-Based Fire Protection, the 'design fire' selected for analysis should represent:

Accepted Answer

A fire scenario that appropriately challenges the fire protection system and represents a credible worst-case for the design objectives being evaluated

Answer

The largest fire that could physically occur in the space under any conceivable scenario

Answer

The average fire size reported for similar occupancies in historical incident data

Answer

The minimum fire size required to activate the sprinkler system within 60 seconds

Question 6

A fire protection engineer is evaluating explosion venting for a dust collector per NFPA 68. The required vent area is MOST directly determined by:

Accepted Answer

The dust collector volume, the Kst value of the dust, and the maximum allowable reduced explosion pressure (Pred)

Answer

The height of the dust collector and the distance to the nearest occupied building

Answer

The airflow capacity of the dust collector in cubic feet per minute

Answer

The concentration of dust in the hopper at maximum capacity

Question 7

Which of the following represents the CORRECT hierarchy of risk control strategies, from most to least preferred, as applied in fire protection engineering and occupational safety?

Accepted Answer

Elimination → Substitution → Engineering Controls → Administrative Controls → PPE

Answer

PPE → Engineering Controls → Administrative Controls → Substitution → Elimination

Answer

Administrative Controls → Engineering Controls → Elimination → PPE → Substitution

Answer

Engineering Controls → PPE → Administrative Controls → Substitution → Elimination