NFPA flammability ratings range from 0 to 4. What rating indicates the highest level of flammability?
4
What material may be burning in a class A fire?
common solid combustibles such as wood, paper, cloth, rubber, trash, and plastics
True or false: Mycobacterium tuberculosis (TB) is a bacteria.
true
What does ALARA stand for?
As Low As Reasonably Acheivable
True or false: It is safe to modify a plug if it does not match the outlet you want to use.
FALSE
In any emergency, how should you prioritize your actions?
property protection
self-protection
co-worker health/safety
aiding the injured
self-protection, co-worker health/safety, aiding the injured, property protection
What material may be burning in a class B fire?
flammable liquids, solvents, oil, gasoline, propane, butane, paints, lacquers, and other oil-based products or petroleum-based products
The most common test for TB is called a PPD test. What does PPD stand for and what part of the body is it performed on?
purified protein derivitive
performed by injecting the PPD under the skin
*a positive test can indicate active or latent TB*What is the OSHA occupational dose limit for radiation per quarter (every 3 months) for the body and for the extremities?
Whole body: 1.25 rem*
Hands, forearms, feet, ankles: 18.75 rem
*reduced to 0.5 rem for pregnant workers for the entire pregnancy
Ground fault circuit interrupters (GFCI) are important to have when outlets are near what?
wet areas
What is the one condition where a fire door can be left open?
If it has an electromagnetic holding device
What material may be burning in a class C fire?
energized electrical equipment such as wiring, controls, motors, machinery, or appliances.
Can someone with latent TB spread the bacteria?
No, TB can only be spread by someone with active TB infection
What are some examples of non-ionizing radiation?
What are some examples of ionizing radiation?
Non-ionizing: ultraviolet (UV), visible light, infrared (IR), microwave (MW), radio frequency (RF), and extremely low frequency (ELF)
Ionizing: x-rays, gamma rays, and alpha, beta, and neutron particles
Most GFCI's will trip around how many milliampres?
5 mA
PASS is an acronym for using a fire exstinguisher. What does PASS stand for?
Pull, Aim, Squeeze, Sweep
What material may be burning in a class D fire?
combustible metals such as magnesium, lithium, potassium, and titanium
What type of respirator do you need to use when caring for a patient with active TB?
NIOSH N95
What law explains how by doubling the
distance from a source, the exposure is
decreased by a factor of 4.
Inverse square law
What is the term for direct contact between the hot and neutral leads?
short circuit
Chemical reactions that release heat are called what?
Exothermic
What is another class of fire besides A, B, C, and D?
Class K (kitchen fires)
What is directly observed therapy (DOT)?
DOT means that a trained health care worker or other designated individual (excluding a family member) provides the prescribed TB drugs and watches the patient swallow every dose.
DOT has significantly decreased the rate of TB in the US!
Eyewear to protect from radiation is specific to the ___________ of the radiation.
wavelength
Does a light switch in the off position have voltage, current, or both?
voltage only, there is a electric potential, but no flow (current)