Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

THMG General Knowled

What is the molecular weight of air? 29
What does CAS stand for? Chemical Abstract Service
What are the most common methods of measuring Vapor Pressure? Millimeters of Mercury (mmHg), Pouns per square inch (PSI), Atmospheres (atm), Millibars (mb)
What is common temperature (in Fahrenheit) all laboratory experiments and most standards are set at? 68 degrees F
At a vapor pressure above what mmHg are materials considered to be an inhalation hazard? Any materials above 40 mmHg.
What is the vapor pressure of water? 25 mmHg
What is the vapor density of air? 1
The NIOSH guide lists vapor density under another name, what is it? Relative gas density (RgasD)
What is the molecular weight of air? 29
What are the 10 gases that air lighter than air? DAMN 3H CAE (Cows ate everything: DiBorane, Acetylene, Methane, Neon, Hydrogen, Hydrogen Cyanide, Helium, Carbon Monoxide, Ammonia, Ethylene
Generally how long is the lag for a diffusion sensor? 15-30 seconds
How many ppm is 1% of the atmosphere? 10,000 ppm
At 0 degrees C, what is the temperature in Kelvin? -273 degrees Kelvin
At What temperature does a flammable liquid become a combustible liquid? When the liquid ignites above 141 degrees F
What is the weight of Water? 8.33 lbs.
Who sets training and equipment standards for HM first responders? OSHA...OSHA Title 29 CFR 1910
Which mode of material transportation is MOST regulated in HM? Waterways
What physical state is of most concern for responders? Gasious
Aside from physical state what factors are of most concern for responders? Material and quantity
What is non-pressure/atmospheric tank pressure? <.5 psi
What is pressure tanks (low pressure) tanks held to? Low = .5 to 15 psi, Pressure tanks are >15 psi
What is cryogenic tank pressure? Vary in pressure, but some can be as high as >300 psi
What is a MC 306/406? Non-pressure tank truck,elliptical in shape.
What is a MC 307/407? Low pressure CHEMICAL tank truck, circular in shape
What is a MC 312/412? ???
What is a MC 331 High pressure tank truck. Above 100 psi. Rounded ends.
What is a MC 338? Cryogenic liquid tank truck. Pressure <22 psi. Valves enclosed in a shed in read
What pressures are in a cylinder/tube trailer? Pressures between 3000 and 5000 psi.
What pressures are in a dry bulk cargo tank? Less than 22 psi. Bottom valves.
An Orange placard would indicate? Explosives
A yellow placard would indicate? Oxidizer
A red placard would indicate? Flammables
A white placard would indicate? Health hazard
A Blue placard would indicate? Water reactive
A green placard would indicate? Non-flammable gas
NFPA 704 yellow square means? reactivity
NFPA 704 red square means? Flammability
NFPA 704 Blue square means? Health
NFPA 704 white square means? Special hazards
In piping system color coding, Yellow means? High hazard materials
In piping system color coding, Green means? Low hazard LIQUIDS
In piping system color coding, Blue means? Low hazard GASES
In piping system color coding, red means? Fire suppresion
What pH is an acid? 0-6. A comes before B on the scale. Acids come before bases
What pH is OK to dispose of at a scene? anything with a pH between 5 and 9.
A drop of 0.1% on the oxygen meter would denote a presence of how many ppm of something else? 5000 ppm
What is the order of monitoring? 1. Radioactive 2. Oxygen 3. Flammables 4. Corrosives 5. Toxicity 6. Corrosive liquids 7. other chemicals
Created by: yakshave