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THMG General Knowled
| Question | Answer |
|---|---|
| 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
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