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80 hr mining class
mining class
Question | Answer |
---|---|
where can you store supplies other than the supply car | designated cross cuts |
rock dust must be applied how close to the face | 40 feet |
what percent of rock dust is in the intake | 65% |
what percent of rock dust is in the return | 80% |
what are the three ways to rock dust | by hand, section rock duster, track rock duster |
you take a test and receive a card you are | certified |
you learn a job on the job you are | qualified |
list the jobs in which you must be certified | belt examiner, shot firemen, electrician, section foremen, mine foremen, and fireboss |
equipment that has been checked by the USB of the mines for the safe use in a coal mine is called | permissible |
what is your body weight over in high coal | feet |
what is your body weight over in low coal | knees |
with the trolly pole pointed in direction of travel you are | backpoling |
what is rock dust made of | limestone |
what gas comes off a battery | hydrogen |
a piece of wood goes on top of a post against the coal | cap block |
a structure that separates two different air currents from mixing | overcast |
how many hours is the course | 80 hours |
mixing in fresh air to keep methane below harmful conditions is called | diluting |
how many people can ride in a motor | 2 |
when working in high coal what type of ladder can you use | non conductive |
what do you use to hang cables to the roof | insulator hangers |
when can you work under the trolley wire when it is bare | never |
when can you go inby your last support | setting up temporary supports |
when checking the roof, should you make sure you have a clean line of retreat | yes |
when can you go out of the rescue chamber | when you are rescued |
what is the purpose of the regulator | controls air into the section |
when can you operate diesel equipment | 8 hr course passed |
how many red hats can go with a foreman | 5 |
how many red hats can go with a black hat | 1 |
when can you leave the barricade | when rescued |
should you carry your shovel on your shoulders | no |
can change the regulator | certified fireboss |
measures dust in the work area | personal dust sampler |
disease from breathing coal dust in | black lung |
dust causes black lung that is not visible to the eye | respirable dust |
device provided for use industry area that covers the nose and mouth | respirator |
protects hearing | ear protection |
built in to knock down dust | water sprays |
passage ways ton section to connect entries | cross cut |
passage ways leading to the face | entry |
coal mining surface (removed) | face |
caved in area after pillars are removed | gob |
less than 48" | low coal |
higher than 48" | high coal |
block of coal that supports the roof | pillar |
opening of a shaft/drift/slope mine | portal |
retreat mining (removing pillars to let the roof fall in) | pillaring |
side walls of a mine/underground | rib |
materials over head (top) | roof |
area from last open cross cut to face | room |
place where mining takes place | section |
number one cause of coal mine deaths | roof and rib falls |
besides methane what causes a fire or explosion | coal dust |
in the mine where do they remove coal | face |
what roof support system is used in long wall mining | chocks |
what does DC power stand for | direct current |
a block of coal that supports the roof is called a | pillar |
best method to remove methane | ventilation |
a caved in area | gob |
moving a piece of equipment... | tramming |
how far are manholes or shelter holes apart | 100 ft |
if you see a unsafe condition you should | report to the foremen |
what object do you place at an unsafe condition | danger board |
if a pillar is larger than normal will it give you more support | yes |
working in coal less than 48" what additional protective equipment must you use? and what kind of coal are you working in? | knee pads. low coal. |
when carrying a sledge hammer where should you hold it | by the head |
what percent of methane causes the continuous miner to stop | 2% |
what percent of methane causes explosion | 5-15% |
what color is methane | colorless |
what color is carbon monoxide | colorless |
is methane poisonous | no |
an acid tasting gas is called | carbon dioxide |
what is carbon dioxide used in | fire extinguisher |
when there is a lack of oxygen it is called | oxygen deficiency |
oxygen deficiency is less than ... % | 19.5% |
first method to check roof | visual |
second method to check roof | vibrations and sound |
how do you know its a bad top using the second method of inspection | drumming sound and vibrations |
when checking the roof you thumb is pointed.. | outby (exit) |
what object tightens the post | wedge |
what tool do you use to cut the bands on supplies | snips |
if methane builds up in a gob area should it be ventilated | yes |
is it a felony to tamper with the rescue chamber | yes |
when do you use your SCSR | during fire/explosion |
what does SCSR stand for | self contained self rescuer |
what is the purpose of the SCSR | provide oxygen |
how do you the the SCSR 100 is in good condition | light blue indicator |
your SR 100 provides oxygen how long | 1 hour |
before you insert the breathing hose in your mouth you must | pull plug out |
once the breathing hose is in your mouth what is the next step | exhale |
the law states that you must keep your SCSR within | arms reach |
you must check your SCSR | daily |
if your scsr becomes difficult to breath through, when can you remove your breathing hose | never |
m20 provides oxygen for how long | 10 minutes |
how do you open the 6.5 | pull rod straight out |
how do you activate oxygen on SCSR 100 | pull orange tag straight down |
how do you activate the oxygen on SCSR 6.5 | turn knob counter clockwise |
the 6.5 provides oxygen for how long | 1 hour |
the dragger provides oxygen for how long | 1 hour |
do you pull the rod straight out on the dragger to open it | no |
which two SCSR are chemical reaction | 100 and Dragger |
which two SCSR are compressed oxygen | M20 and 6.5 |
where is the 6.5 stored | cache case |
when SCSR are stored they are required to be checked | every ninety days |
what is contained in the rescue chamber | 96 hours of oxygen, food, water, communication |
what is contained in the escape kit | chalk light, tag line, map, hammer, gloves |
how far from the face is the rescue chamber | 1000 ft |
does a life line go to the rescue chamber | yes |
does a life line go to the cache case | yes |
reflectors are on the life line how many feet apart | 25 feet apart |
what is primary escape way | intake entry (air) |
what is the secondary escape way | track |
what fan pulls the air throughout and out of the mine | exhaust fan |
where is the main fan located | surface |
another name for coal dust that is heavy | bug dust |
another name for coal dust that is kept in suspension | float dust |
where the air separates it is called | air split |
line curtain is held how far from the face | 10 feet |
what does line curtain do | direct air to face |
when the shuttle car operator trams through a check curtain he must | sound the alarm |
first thing you do when you see a fire | sound the alarm |
what type of fire is class c | electrical |
when fighting a fie you spray the water or chemical at the... | base |
when fighting a fire do you want to be in by or out by the fire | out by |
diesel fire is what class | b |
what is the max you can be fined | $250 |
can the company officials accompany the inspectors on their inspections | yes |
where do you get the strongest pulse | neck |
if you have severe bleeding of the lower arm do you try to stop the bleeding at the wrist | no |
who loosens a tourniquet | doctor |
should you try to remove and object buried deep in a wound | no |
who is the only person that should remove something buried deep in your body | doctor |
bright red blood indicates. hardest to stop (yes/no) | pulsating artery. hardest to stop YES |
dark red blood indicates. hardest to stop (yes/no) | steady stream vein |
oozing out indicates. hardest to stop (yes/no) | capillary |
is a red face symptom of shock | no |
the person that directs traffic in a mine | dispatcher |
the copper wire that is not insulated properly | trolleywire |
biggest hazard on the track | trolley wire |
how much clearance space is on the tight side of a trolley wire | 12 inches |
when should you get on or off a man trip | completely stopped |
what side of a man trip do you enter and exit | clearance side |
how much clearance space is on the clearance side of a trolley wire | 24 inches |
when riding an open man trip what side do you ride on | clearance side |
what roof system is it when you are using lumber and safety jacks | conventional |
when giving a CPR whats the depth of compressions | 1.5"-2" |
should you ever come in contact with someone that is in an electrical current | no |
a conducting connection between electrical circuit and earth is called | ground |
what will happen to the person in current | shocked or electrocuted |
what will happen to you if you come in contact with a person in current | shocked or electrocuted |
what is the first thing you want to do for a person being electrocuted | turn off the power source |
if you have to remove that person from the current what would you use...give two examples | an insulator....rubber gloves and/or dry wood board |
proper way to cross a track | step over it |
proper way to cross a cable | step on it |
proper way to cross a conveyor belt | use cross overs |
you should never walk in water over you... | boots |
what mining method is it using continuous miners | continuous mining |
what mining method when you need five faces | conventional mining |
a car with coal or men or women is called a... | trip |
inby the last open cross cut that leads you to the face | room |
the area in the mine where a crew of men or women are working | section |
when can a red hat change a regulator | never |
a block wall made of cinder blocks is called | stopping |
what instrument checks air flow | anemometer |
what part of the mine do you check for methane | face |
when checking for methane where do you check | top of face |
where do you check for oxygen deficiency | floor |
a foremen checks for methane when... | before shift and every two hours after that |
can you enter a mine before a fire boss has made it safe | no |
can state or federal inspectors inspect a mine without prior warning | yes |
what should you never apply to a class C fire | water |
the opening of a mine tunnel. sometimes this goes into a horizontal tunnel and sometimes to a tunnel that slants downward | adit |
a big drill that is like a gigantic screw. it bores holes in rock | auger |
a straight piece of wood or metal that is used to hold up walls or roofs of a mine | beam |
a layer of minerals, gemstones, ore, or rock | bed |
it is a form of coal that is harder than peat but softer than anthracite | bituminous coal |
a drilled hole that is deep and long | borehole |
in the old days, a person would choose a place to mine, he would register this land as his ... and no one else was able to take it from him | claim |
when someone would take land that someone else registered as his own | claim jumping |
something that is made by heating up coal | coke |
pressed together using a lot of pressure | compacted |
a machine that digs the coal off of the walls of the mine and then loads it in a device to take it out of the mine | continuous miner |
a platform with sides that moves mined materials into a mine shuttle to take it out of the mine | conveyor |
a rock, mineral, or gemstone that builds up in the Earth by itself | Deposit |
a machine with a long, lass like device on it that is pulled over the land in mountaintop removal. it is pulled over an area and it clears out the trees and the top levels of dirt called overburden | dragline |
the wearing away of layers of rock and minerals by wind, rain, and other weather conditions | erosion |
when gases sit in mines and become a danger for miners. they will ignite and explode | fire damp |
a tunnel that is used for the miners to go in and out of the mine | man-shaft |
a small device that filters out gas and supplies oxygen to miners | self rescuer |
a mine tunnel that is used to bring in air, miners, or equipment, it can also be used to take out whatever is mined | shaft |
a vehicle that is used to take ore out of the mine | shuttle car |
usually a wooden channel that water flows through. | sluice |
a place in the valley where the dirt, rocks, trees, and plants get dumped from mountaintop mining | valley fills |
a triangular piece of wood or metal that is forced between a beam and the ceiling to keep the beam tight and the roof stable | wedge |
apprenticeship requires completion of an ** hour course | eighty |
at least how many months experience for underground coal miner certification | six months |
an apprentice must wear a red hat for.. | six months |
opening goes straight down to the coal seam | shaft mines |
opening goes directly back into the seam of coal where the coal has outcropped | drift mines |
opening slants down to the coal seam | slope mines |
once you reach the seam of coal the mining methods are not the same (T/F) | False, they are the same mining methods |
sheer or plow is used to mine a block of coal usually with a four hundred to six hundred feet face (or more) four thousand to six thousand feet long; and roof is supported by what... | longwall. supported by chocks |
where an extensible belt is connected to the continuous miner and belt transports coal to the main section belt; the extensible belt replaces shuttle car coal transportation. | bridgewall |
using a continuous miner to extract blocks of coal with chocks as the main means of supporting the roof | shortwall |
this means closer to the face than a comparing point | inby |
this means further away from the face than a comparing point | outby |
Passageways used to connect entries | crosscut |
passageways leading to the face | entry |
caved in area in the mine usually after pillars have been removed | gob |
anything over 48 inches | high coal |
anything below 48 inches | low coal |
the opening of a shaft, drift, or slope mine | portal |
retreat mining. removing the blocks of coal that were left during development mining work in which the roof falls to become the gob. | pillaring |
the sides of an underground mine | rib |
the top. material overhead in an underground coal mine | roof |
the area from the last open crosscut to the face | room |
the place in a mine where an entire crew of men are working and mining coal | section |
entries are numbered from _____ to _____ | left to right |
battery cap light check: if the indicator or needle points to the ___ position the battery is not charged and should not be taken underground. if the indicator points to the ___ position the battery is charged and ready for use. | on...off |
a plan of what those on the surface will do and what those underground will do in the event of an emergency | mine emergency plan |
a quick way to determine who is in the mine in the event of a mine emergency (time clock, lamp check, tag, etc.) | check in check out procedure |
in case of emergency how many shoots will the rescuers give if they have not found you? how many times do you pound on the ribs and how often? how many shots when the rescuers have located your position? | 3 shots. pound wall 10 times in fifteen minute intervals. 5 shots means they found your location. |
The moving of self propelled equipment from one place to another other than track equipment | tram |
what kind of mantrips are conveyor belts considered | open mantrips |
conveyor belts can be used as mantrips as long as they have ** inches of clearance overhead. Men shall ride ** feet apart. | 18inches overhead, 6 feet apart. |
tight side how many inches | 12 |
current that flows in one direction | direct current power |
current that flows in opposite directions | alternating current power |
anything that will carry an electric current. ex. metal, water, human body | conductor |
anything that will not carry an electric current. ex rubber, plastic, glass. | insulator |
an electrical device that steps up or steps down voltage | transformer |
an electrical device that changes AC power to DC power | rectifier |
uninsulated copper wire that supplies DC power to track equipment | trolley wire |
a copper wire welded on the rails where there is a joint in the track for the ground connection | bond |
a means of tapping power from the trolley wire to other electrical machines | nip |
where all the nips from a section attach to the trolley wire and supply DC power to section machines | nip station |
the cable that brings power from the power source to the machine. do you step on this when crossing? | trailing cable. yes. |
a connection made where a cable has been broken or damaged. | splice |
how many splices can be made in a cable and after how many hours does it become permanent | 1 splice. 24 hours. |
this means labeling and locking trailing cables that should not be energized while equipment is being worked on | tagging out/lock out. |
these accidents involve the worker being hit by machinery or parts of machinery, roof and rib falls or basically any accident where the worker gets hit by something | struck by |
these accidents involve the worker him/herself hitting or walking into something | struck against |
accidents where the worker is caught between something | caught between |
overstretching of a muscle or tendon | strain |
twisting injury at a joint | sprain |
what do you lift with in high coal? in low coal? | upper legs and arm muscles |
first step in lifting in low coal | get a buddy to help |
if a buddy helping down not work in lifting low coal what is the next step | use mechanical aids |
a highly explosive gas found in underground coal mines that is released from the coal as coal is being mined | methane gas |
can methane be detected with your five senses? | no |
how to detect methane | portable methane detector |
how is methane removed | directing ventilation or air to the face of the mine |
methane is ______ than air | lighter |
what is considered a dangerous level of methane | anything over 1% |
another name for methane is | firedamp atmosphere |
what percent of methane must you cut the power to machines and change ventilation | 1% |
what percent of methane do you cut power to entire section and evacuate persons from the danger area | 1.5% |
a highly poisonous gas that is found in an underground coal mine as a result of a fire or an explosion | carbon monoxide |
any mine atmosphere that will put out a flame | blackdamp |
face equipment operators must check for methane gas when | before energizing equipment and every twenty minutes during operation |
Class A fire | solids |
Class B fire | flammable liquids |
Class C fire | electrical |
electrical fire is class.. | c |
what do you use to extinguish class B fires | ABC dry chemical fire extinguisher |
Solids are class.. fires | A |
what kind of motion to fight fires | rapid sweeping motion |
dust released as coal is being mined | coal dust |
surface fan responsible for ventilation underground mine | main fan |
type of main fan that pushes air through the mine | blow fan |
type of main fan that pulls air through the mine | exhaust fan |
entries used for bringing fresh air to the face | intake |
entries used for bringing bad air out of the mine | return |
a piece of brattice or curtain hung in an entry or crosscut which is used to deflect air to some other part of the section where it is needed | check curtain |
a piece of brattice hung from the last crosscut and runs up to within ten feet of the face which directs air up to the face | line curtain |
devices in return airways that control air splits and according to what they are set at will control how much air comes into a section | regulator |
small portable fans installed in the last open crosscut with tubing attached to fan where tubing is extended to within ten feet of the face can be used with line curtain or can replace line curtain | auxiliary ventilation and tubing |
entry left open around a gob area to ventilate around and force air through the gob | bleeder system |
a plan adopted that shows the type of roof, materials to be used in controlling the roof, the spacing between the support materials. To be reviewed every six months | roof and rib control plan |
any place where roof bolts are utilized to support the mine roof | roof bolt support system |
using anything other than roof bolts or chocks to control the mine roof. ex. lumber, safety jacks, etc. | conventional support system |
a long steel rod inserted in the mine roof to help hold its place | roof bolt |
a type of roof bolt with an expandable shell on the end that when tightened expands and grips into the roof holding the bolt and roof in place. | expansion bolt |
after the hole is drilled in the mine roof a tube of glue is inserted in the hole then the resin bolt which punctures the tube of glue and allows the glue to spread in the cracks in the mine roof helping to bind or cement the layers in place | resin bolt or glue bolt |
bolting several weak layers to make one strong layer | beam building |
hanging weak roof from strong roof overhead | suspension |
dont turn your back to ____ or ____ | face or ribs |
what to use when removing loose particles and how do you use it. | slate bar and always pry up on the bar when removing particles |
main track system in and out of the mine | main line |
first two preoperational checks on face equipment in order are: | check roof and ribs in working area, make methane tests |
first three preoperational checks made before tramming to face | check roof/ribs, methane, and inspect trailing cable |
what is the first thing you do before shoveling the tail piece | make sure belt is off |
what kind of bandage goes on open wound | dry bandage |
what is elevated for shock | feet |
can you use two pressure points in the neck at the same time | no |
six fundamentals of first aid in order | 1) artificial respiration 2) control bleeding 3) treat for physical shock 4) treat wounds and burns 5) treat for fractures and dislocations 6) transportation of patient |
the emergency care for a person who is injured or sick, to relieve pain and prevent death | first aid |
the breathing for a person whose normal breathing has slowed or stopped | artificial respiration |
mouth to mouth given when ___ breathing and ____ pulse | not breathing but has a pulse |
what is the air to time ration for mouth to mouth | 1 air every 5 seconds |
use CPR when ____ breathing and ____ pulse | no breathing and no pulse |
artery over bony point/structure | pressure point |
four causes for a person to lose his/her breathing | electric shock, drowning, suffocation, breathing poisonous gases (asphyxia) |
stop bleeding towards heart | arteries |
stop bleeding away from heart | veins |
blood spurts from the wound due to the beating or pulsating of the heart and the blood is bright red in color due to the oxygen in the blood. | arteries |
the blood flows from the wound in a smooth steady stream and is dark red in color due to carbon dioxide in the blood | veins |
how many pressure points in the body and how many on each side | 22 in the body. 11 on each side. |
what question do you ask to someone choking | are you choking |
universal sign for choking | hands around neck |
strongest pulse is where | neck |
not a pressure point | calf |
what do you not do to frost bitten area | rub |
treating someone is called what law | good sumeritan law |
an upset of the nervous system | physical shock |
how to recognize person in shock | chalk like appearance, dull or anxious expression, shallow breathing,cold/moist skin |
treatment of physical shock in order | lay victim flat, elevate feet six inches higher than head, clear mouth of foreign objects, loosen tight fitting clothing, keep patient warm/dry |
subject wounds and burns to fresh air | false |
break blisters | false |
any break in the skin | open wound |
apply what kind of bandage to open wound | dry sterile bandage |
made by rubbing or scraping skin against object | abrasions |
wounds made by sharp cutting edges; narrow but usually not deep | incisions |
wounds made by contact with heavy blunt objects which tear skin and usually leaves rough edges around skin | lacerations |
the pushing out of an intestine through the wall of the abdomen | rupture or hernia |
do you apply pressure to a hernia? | no |
reddening of the outer layers of skin. and apply what to this burn. | 1st degree burn. apply wet bandage |
reddened skin, blisters, damage to underlying tissues | 2nd degree burn |
most serious kind of burn. skin is destroyed, area is usually charred. | 3rd degree |
treatment for burns in area: | 1) remove clothing from burned area, unless stuck to the skin 2) cover burn with cool moist dressing 3) cover victim with a blanket 4) treat for physical shock |
how to care for burnt fingers | wrap each finger individual with cold moist dressings loosely |
bone may be cracked or broken but does not punch through skin | simple fracture |
bone is broken and one or both ends punch through skin | compound fracture |
symptoms of fractures: | 1) localized pain 2) loss of function 3) deformity of affected limb 4) moderate or severe swelling |
what kind of splint used for compound fracture | air splint |
fluid coming out of ears | fractured skull |
always transport patient in what position | laying down |
stretcher positioning | level |