Question

1. what are the three main types of roofs that firefighters are likely to encounter?

a. flat, pitched, arched
b. mansard, shed, lantern
c. flat, gambrel, bowstring
d. pitched, arched, gambrel

1. roof penetrations such as skylights and chimneys:

a. do not affect ventilation in any way.
b. may act as an exit point for some types of ventilation.
c. are usually only encountered on pitched residential roofs.
d. are extremely difficult to penetrate when performing ventilation.

1. with regard to fire fighting operations, doors are:

a. of little concern to firefighters.
b. a tool for controlling flow paths.
c. useful when determining occupancy type.
d. hazardous because they block occupant egress.

1. what are fire doors designed to do?

a. limit the need for horizontal ventilation
b. block the spread of fire within a structure
c. stop fire from spreading to exposure buildings
d. allow firefighters to access floors above ground level

1. how can security bars on windows negatively affect fire and life safety?

a. make ventilation efforts less effective
b. prevent trapped occupants from escaping
c. create an increased load that results in structural instability
d. increase the number of personnel necessary for suppression

Explanation:

• Question 11: Flat, pitched, and arched roofs are common types firefighters encounter. Mansard, shed, lantern (b) are more specific subtypes. Gambrel and bowstring (c and d) are also specific.
• Question 12: Roof penetrations like skylights and chimneys can act as exit points for ventilation. They do affect ventilation (a wrong). Not only on pitched roofs (c wrong). Not extremely difficult to penetrate (d wrong).
• Question 13: Doors are a tool for controlling flow paths in firefighting. Not of little concern (a wrong). Not mainly for determining occupancy (c wrong). Not hazardous for blocking egress (d wrong).
• Question 14: Fire doors are designed to block fire spread within a structure. Not to limit horizontal ventilation (a wrong). Not to stop spread to other buildings (c wrong). Not for access (d wrong).
• Question 15: Security bars on windows prevent trapped occupants from escaping. Don't make ventilation less effective (a wrong). Don't create structural instability (c wrong). Don't increase suppression personnel (d wrong).

Answer:

1. A. Flat, pitched, arched
2. B. may act as an exit point for some types of ventilation
3. B. a tool for controlling flow paths
4. B. Block the spread of fire within a structure
5. B. Prevent trapped occupants from escaping