Chapter 13 Fire Fighter Quiz

​According to tests by conducted by UL, in order for ventilation to improve interior conditions, what must occur? Select one: A. The vent must be created as soon as possible. B. Ventilation must not significantly alter the flow path. C. The vent must be in the same compartment as the fire. D. Ventilation must be coordinated with the application of water as close to the fire as possible.

​For natural ventilation, which window should be opened first? Select one: A. Windows opening directly into the fire room B. The upwind window C. The highest window D. The downwind window

​In which case does a larger vertical ventilation opening improve interior conditions better than a smaller opening? Select one: A. In all cases B. For any fire within an intact compartment C. When combined with coordinated water application D. For any ventilation-limited fire

​What does a neutral plane at a vent opening indicate? Select one: A. Equal pressure inside and outside the structure B. Stack effect C. Pre-flashover conditions D. Fuel-limited stage fire

​What does fast-moving smoke indicate? Select one: A. High synthetic fuel content B. Poorly ventilated ventilation-controlled fire C. Incomplete combustion D. Very hot fire

​What is the open space between the ceiling of the top floor and the underside of the roof of a building? Select one: A. Roof chase B. Eave C. Cockloft D. Mansard

​Which action is particularly dangerous when dealing with a ventilation-limited fire? Select one: A. Transitional attack B. Creating exterior openings C. Vertical ventilation D. Limiting the clean air supply

​Which construction technique builds one floor at a time with a firestop between each floor? Select one: A. Ordinary B. Balloon C. Platform-frame D. Flitch plate

​Which statement about positive-pressure ventilation is correct? Select one: A. It requires the use of a built-in HVAC system. B. It should be used only if attack crews have access to all fire. C. It uses a smoke ejector to draw smoke out of a building. D. It is not affected by wind conditions.

​Which term means the spread of fire from one floor to another via exterior windows? Select one: A. Laddering B. Vertical fire extension C. Crowning D. Stack effect

​Which type of ventilation uses openings above the fire so that heat and smoke can escape the structure in an upward direction? Select one: A. Horizontal B. Mechanical C. Negative-pressure D. Vertical

​How can recirculation be eliminated during smoke ejection? Select one: A. Raise the fan in the opening. B. Pull the fan back from the opening a few inches. C. Completely block the opening around the fan. D. Increase the number or size of exhaust openings.

​What is the greatest risk to fire fighters performing vertical ventilation? Select one: A. Roof collapse B. Falling off the roof or ladder C. Exposure to products of combustion D. Sudden increase in fire intensity

​Where is water directed during hydraulic ventilation? Select one: A. Over the roof opening B. Just over the seat of the fire C. Through the roof opening D. Out a window or door

​Which is a disadvantage of positive-pressure fans? Select one: A. They can spread fire if used improperly. B. They impede entry and exit of personnel. C. Favorable wind conditions are required for their use. D. Correct placement can be time consuming.

​Which item greatly increases risk during vertical ventilation operations? Select one: A. Composite roofing materials B. Lightweight construction components C. Oriented strand board (OSB) roof decking D. Glue-laminated components

​Which problem can be caused by using doorways as ventilation openings? Select one: A. The large opening can admit too much air. B. It compromises personnel entry and exit. C. It is more difficult to control the ventilation process. D. This technique tends to produce churning.

​Which statement about the operation of HVAC equipment during fire ventilation operations is correct? Select one: A. Some HVAC systems can be used for clearing smoke. B. It is important to maintain power to the HVAC system at all times. C. HVAC systems should be shut down as soon as possible. D. HVAC systems are designed to automatically shut down when smoke is detected.

​Which structural component is composed of relatively small and lightweight components arranged in a series of triangles? Select one: A. Truss B. Purlin C. Lintel D. Strut

​Which type of building is the most prone to the stack effect? Select one: A. Warehouse B. Shopping mall C. Cold-storage facility D. High-rise