| Question |
Answer |
Notes |
| Why is good housekeeping crucial for fire management? A. Eliminates build up of combustibles; B. Ensures proper storage of flammable liquids in flame cabinets; C. Keeps clear access to fire extinguishers and exits; D. All of the above |
D. All of the above |
|
| Why must oily rags always be placed in covered metal containers? |
They can spontaneously combust. |
Spontaneous ignition occurs when a combustible object is heated to its ignition temperature by a chemical reaction involving the oxygen in the air around us. This “oxidation “ process creates heat that, if not dissipated, will build up until ignition occurs. Generally, this can happen when the materials are left in piles and the heat being generated in the pile cannot be released into the air. It is simple to prevent spontaneous ignition, since oxygen is needed for it to occur. Materials subject to spontaneous ignition should be stored in covered metal containers such as a rag safety can or trashcan. Admittedly the container will contain oxygen at first. However, the oxidation process will use up the reaction and the reaction will stop-fire prevented. |
| Oxygen, heat, fuel, and this other component make up the fire tetrahedron. |
Chemical or chain reaction |
|
| What is the primary purpose in using a fire extinguisher in an emergency situation? |
To escape |
|
| The mnemonic P.A.S.S. helps miners remember these specific steps in order to properly use a fire extinguisher on small fires. |
Pull the pin, aim at the base of the fire, squeeze the handle, sweep back and forth |
|
| These four things should be checked when inspecting a fire extinguisher. |
Pressure gauge; secured pin and handle; inspection tags; no damage on body and hose |
|
| What three types of fires can be fought with an ABC fire extinguisher? |
Class A: combustible solids; Class B: flammable liquids; and Class C: electrical |
|
| Smoking and use of open flames shall not be permitted within ____ feet of explosive material except with separated by permanent noncombustible barriers. |
50 |
|
| Which is the main purpose in using a fire extinguisher? A. To help you escape; B. To protect property; C. For insurance requirements; D. To control the fire until the fire department arrives |
A. To help you escape |
|
| Basic fire safety dictates that we always: A. Keep work and other areas clear of the accumulation of combustible materials; B. Use extension cords wherever necessary; C. Only use fire cabinets for storing paint; D. Weld only outdoors |
A. Keep work and other areas clear of the accumulation of combustible materials |
|
| How often does MSHA require that fire extinguishers be checked? A. Daily; B. Monthly and as required by the manufacturer; C. At least every five years; D. Just prior to use |
B. Monthly and as required by the manufacturer |
|
| Is it safe to use water on an electrical fire? |
No |
Water and electricity generally do not mix very well. Impurities in ordinary tap water help make it a good conductor of electricity. Using water on an electrical fire will almost always present a major shock hazard and should never be considered. |
| According to MSHA, fire extinguishers must be: A. Strategically located; B. Red; C. Marked conspicuously; D. A and C only |
D. A and C only |
|
| Which is not one of the four parts of the fire tetrahedron? A. heat; B. Air; C. Oxygen; D. Fuel; E. Continuous chain reaction |
B. Air |
|
| What should you do if a fire is expanding? A. Open a hot door that you come across; B. Get out by your primary or secondary escape route; C. Call for a ventilation reversal; D. Wait for the mine rescue team if underground |
B. Get out by your primary or secondary escape route |
|
| Which is not an example of a Class A fuel? A. Wood; B. Plastics; C. Sodium; D. Garbage |
C. Sodium |
|
| Which of the following indicate a fire? A. Audible/visual fire alarm; B. Flames and/or smoke; C. Fire brigade is activated; D. Any of the above |
D. Any of the above |
|
| Which size fire is appropriate to fight with a handheld fire extinguisher? A. Haul truck; B. Office trash can; C. Dumpster; D. 55 gallon drum |
B. Office trash can |
|
| Who fights explosives fires? A. Mine rescue; B. Local fire departments; C. MSHA; D. No one |
D. No one |
|
| If you are using a fire extinguisher that is too small for the fire being fought, you are: A. Wasting time; B. Hampering the fire department; C. Adding fuel to the fire |
A. Wasting time |
|
| In the event of an underground mine fire, what is not your friend? A. Time; B. Distance; C. Shielding; D. Cap lamp |
A. Time |
|
| What is the most likely source of immediate danger from a fire underground? A. Radiant heat; B. Low visibility; C. Carbon monoxide; D. Hydrogen trisulphide |
C. Carbon monoxide |
|
| What is the difference between the Fire Triangle and the Fire Tetrahedron? A. The Fire Tetrahedron applies when there are two or more fuel sources; B. The Fire Tetrahedron applies to fires too large to extinguish with a handheld fire extinguisher; C. The Fire Tetrahedron recognizes that a sustained chemical reaction is necessary to produce fire; D. The Fire Triangle is used oxygen deficient atmospheres |
C. The Fire Tetrahedron recognizes that a sustained chemical reaction is necessary to produce fire |
|
| Which of the following would be fuel for a Class A fire? A. Paper; B. Gasoline; C. Electricity; D. Ozone |
A. Paper |
|
| If you are using a fire extinguisher on a fire that is too large, you are: A. Allowing the fire to grow; B. Endangering life; C. Wasting time; D. All of the above |
D. All of the above |
|
| Which of the following is an important cardinal rule for fighting a fire? A. Use whatever extinguisher is nearest to fight the fire; B. Never attempt to fight a fire that exceeds your training and the equipment at hand; C. Fight the fire before calling 911; D. All of the above |
B. Never attempt to fight a fire that exceeds your training and the equipment at hand |
|
| Which of the following is not part of basic fire safety? A. Keep work and other areas clean; B. Debris can catch fire; C. Keep exit paths clean and clear; D. Oily rags can be disposed of in open containers |
D. Oily rags can be disposed of in open containers |
|
| True or false: Adding water to a Class B fire may cause the fire to spread. |
True |
|
| True or false: The only extinguisher suitable for a Class D fire uses a dry chemical agent. |
True |
|
| Which of the following is not a part of inspecting a fire extinguisher? A. Checking the gauge; B. Checking that the inspection tag is current; C. Picking up the extinguisher to feel that it is full; D. Checking that the pin and handle are secured; E. Checking that the extinguisher vessel is free of visible damage |
C. Picking up the extinguisher to feel that it is full |
|
| True or false: The best method for fighting explosives fires is by using a water truck. |
False |
No one fights explosives fires. |
| Is it advisable to attempt to put out an explosives fire quickly with a fire extinguisher? |
No |
|
