CHAPTER 5-6 TEST Flashcards
What term refers to a substance remaining chemically the same, but changing in size, shape, or appearance?
Physical change.
How can understanding the physical science of fire help firefighters?
It translates to practical knowledge of fire behavior.
When a substance changes from one type of matter to another, that has had a:
Chemical change.
What represents the amount of energy that an object can release in the future
Potential.
What type of reaction absorbs energy as it occurs?
Endothermic
What are the elements necessary to create fire in the model represented by the fire triangle?
Fuel, oxygen, and heat.
What best describes what the fire tetrahedron represents?
an uninhibited chemical chain reaction
What source of thermal Energy is the most common source of heat in combustion reactions?
Chemical energy
What method of heat transfer occurs when the material is heated as the result of direct contact with the heat source?
Conductive
What method of heat transfer can become the dominant mode as the fire grows in size?
Radiation
What type of fuel can be the most dangerous of all the types?
Gaseous
What type of fuel has a definitive size and shape?
Solid
Which fire development factors affects heat release rate?
Fuel type
What affects the amount of air entrained in the plume during the growth stage?
Location of fuel package
What is defined as the tendency of gases to form into layers according to temperature?
Thermal layering
The neutral playing in the growth stage is:
Interface of hot and cold layers at an opening
What stage of fire development occurs when all the combustible materials in a compartment are burning?
Fully developed
What is a heat indicator of the possible flashover?
Darkened windows
What aspect of fire development as a result of an increase and low-level ventilation prior to upper ventilation?
Backdraft
Water is converted to steam at:
212°F
What is the most common method used in firefighting operations?
Temperature reduction
What type of rapidfire development occurs as unburned fuel gases contact and ignition source?
Smoke explosion
The ignition of unburned fire gases at the top of the compartment is known as:
Rollover
What describes the purpose of personal protective equipment?
Designed to minimize risk of injury or fatality
What part of structural firefighting personal protective equipment is intended for use in combination with a primary form of eye protection?
Helmet mounted face shield
What part of structural firefighting personal protective equipment is designed to fit inside a protective coat?
Protective hoods
Why should the liner never be removed from a protective coat?
That compromises the design and increases the likelihood of injuries
What part of structural firefighting personal protective equipment must be high enough to protect the lower leg?
Protective foot wear
What piece of personal protective equipment can be worn to increase visibility at roadway incidents?
Traffic vests with retro reflective trim
What component of emergency medical protective clothing maybe dual certified for use in the station as well?
Footwear
What type of special protective clothing is designed as similar to structural personal protective equipment but with an aluminized outershell?
Proximity firefighting
The type of cleaning required for personal protective equipment is determined by:
Amount and type of contamination
What type of NFPA defined cleaning may be done in the washing machine design to handle heavy loads?
Advanced cleaning
Moisture in the shell and liner material of personal protective equipment could result in?
Serious steam burns
What respiratory hazard can be protected against using high efficiency particulate filters?
Airborne pathogens
When are SARs used?
For confined space rescue’s and technical rescue incidents
What factors must respiratory equipment be protected from during storage?
Contamination, temperature changes, ultraviolet light
Compartment doors May interfere with what type of SCBA Mount?
Back up Mount
Before doffing SCBA, and sure you are out of the contaminated area and:
SCA is no longer required
Which NFPA standard statuses the inspection. For protective breathing apparatus?
1852
Which piece of protective breathing apparatus how’s the frame checked weekly for deterioration, dirt, and cracks?
Facepiece
Which piece of protective breathing apparatus has the handwheel check for damage during weekly inspection?
Breathing air cylinder assembly
Any source used to refill SCBA must provide what type of air quality?
Type one grade d
Firefighters experiencing lightheadedness, disorientation, and rapid fatigue most likely has:
Oxygen deficiency
Which nonemergency exit technique should be practiced in training until it is second nature?
Controlled breathing
