Transcript Surface Coal - Mine Rescue Association

2001 ANNUAL REFRESHER
“IN PURSUIT OF SAFETY”
WY MSHA STATE GRANT
PROGRAM
RULES OF PLAY FOR
“IN PURSUIT OF SAFETY”
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YOU WILL BE DIVIDED INTO 2 OR
MORE “TEAMS”
EACH TEAM WILL USE A
DIFFERENT COLORED HAUL
TRUCK GAME PIECE
EACH TEAM WILL ROLL A DIE TO
DETERMINE ORDER OF PLAYHIGHEST ROLL GOING FIRST
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RULES OF PLAY FOR
“IN PURSUIT OF SAFETY”
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PLAY WILL PROCEED CLOCK-WISE
FROM THE STARTING TEAM
EACH TEAM WILL HAVE AN
OPPORTUNITY TO ANSWER ONLY
ONE QUESTION FOR EACH TURN
EACH TEAM WILL RECEIVE 10
POINTS FOR EACH CORRECTLY
ANSWERED QUESTION - PARTIAL
POINTS MAY BE AWARDED BY YOUR
3
INSTRUCTOR
RULES OF PLAY FOR
“IN PURSUIT OF SAFETY”
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THE WINNING TEAM WILL BE
DETERMINED BY ARRIVING FIRST IN
THE CENTER OF THE GAME BOARD
AFTER SUCCESSFULLY
ANSWERING AT LEAST ONE
QUESTION IN EACH TOPIC (COLOR)
OR...
THE TEAM WITH THE HIGHEST
POINT SCORE AT THE END OF THE
GAME
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RULES OF PLAY FOR
“IN PURSUIT OF SAFETY”
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YOUR INSTRUCTOR WILL BE THE
FINAL JUDGE AS TO WHETHER
YOUR TEAM ANSWERED THE
QUESTION SATISFACTORIALLY!
YOU WILL HAVE UNTIL THE MUSIC
STOPS TO CORRECTLY ANSWER
EACH QUESTION - AN
UNANSWERED QUESTION AT THE
END OF THE MUSIC WILL BE A
WRONG ANSWER!
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GROUND CONTROL
TRANSPORTATION & COMMUNICATION
RESPIRATORY PROTECTION
MANDATORY H & S STANDARDS
EXPLOSIVES
ELECTRICAL HAZARDS
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GROUND CONTROL
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THE TERM USED TO DESCRIBE
THE ANGLE THAT A FREE-PILED
MATERIAL MAKES WITH A
HORIZONTAL PLANE
ANGLE OF REPOSE
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MINING METHODS EMPLOYED BY
THE OPERATOR SHALL BE
SELECTED TO ENSURE
(REGARDING WORKER SAFETY)
HIGHWALL AND SPOIL BANK
STABILITY
77.1000
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WHEN SHOULD HIGHWALLS,
BANKS, AND BENCHES, ETC. BE
INSPECTED?
AFTER EVERY RAIN, FREEZE OR
THAW, BEFORE MINERS WORK IN
SUCH AREAS 77.1004(a)
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WHAT ARE THE FOUR BASIC TYPES
OF SLOPE FAILURES COMMONLY
SEEN IN COAL MINE HIGHWALLS?
ROCK FALL, ROTATIONAL SHEAR,
SLOPE FAILURE, AND BLOCK FLOW
(FROM WYOMING MINE FOREMAN’S
EXAM REVIEW)
11
GROUND CONDITIONS AT SURFACE
COAL MINES SHALL BE EXAMINED
BY:
CERTIFIED PERSONS
77.1713(a)
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EACH OPERATOR SHALL
ESTABLISH AND FOLLOW A
FOR THE SAFE CONTROL OF
ALL HIGHWALLS, PITS AND SPOIL
BANKS.
GROUND CONTROL PLAN
77.1000
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LOOSE, HAZARDOUS MATERIAL
SHALL BE:
STRIPPED FOR A SAFE DISTANCE
FROM THE TOP OF THE PIT OR
HIGHWALLS AND THE LOOSE
UNCONSOLIDATED MATERIAL SHALL
BE SLOPED TO THE ANGLE OF REPOSE
77.1001
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WHAT IS A SLOPE FAILURE THAT
OCCURS ALONG A PLANE OR
BETWEEN LAYERS OF MATERIAL
PLANE SHEAR
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WHAT MUST BE DONE WITH
OVERHANGING HIGHWALLS, BANKS
AND OTHER UNSAFE GROUND
CONDITIONS?
PROMPTLY CORRECTED OR THE AREA
POSTED
77.1004(b)
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TECHNIQUES USED TO PREVENT OR
CONTAIN SLOPE FAILURES ARE
COMMONLY REFERRED TO AS:
GROUND CONTROL TECHNIQUES OR
METHODS
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TWO MAIN GROUND CONTROL
HAZARDS ASSOCIATED WITH
SURFACE COAL MINING ARE...
SLOPE FAILURES AND WATER
HAZARDS
BONUS QUESTION:
WHICH OF THE ABOVE IS MORE HAZARDOUS?
SLOPE FAILURES ARE CONSIDERED TO BE MORE SERIOUS
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WHAT IS THE TERM FOR A TYPE OF
EMBANKMENT FAILURE THAT
OCCURS AT OR ABOVE THE TOE OF
A SLOPE...
A SLOPE FAILURE
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WHAT CONDITIONS WOULD ALERT
YOU THAT A SLOPE FAILURE
COULD BE ABOUT TO OCCUR?
FRACTURED OR BROKEN ROCKS IN
THE HIGHWALL, VERTICAL
DISPLACEMENT OF ROCK LAYERS,
CRACKS IN ROCKS, CRACKS IN THE
GROUND, UNDERCUT HIGHWALLS,
FREEZING OR THAWING, HEAVY
ROCKS PILED ON TOP OF LIGHT
ROCKS, MATERIAL STEEPER THAN
NORMAL ANGLE, WET WEATHER
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WHEN CAN MINERS WORK NEAR
OR UNDER DANGEROUS
HIGHWALLS?
ONLY WHEN CORRECTING UNSAFE
CONDITIONS
77.1006(a)
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A TYPE OF EMBANKMENT FAILURE
WHERE THE FAILURE OCCURS
BELOW THE TOE OF THE SLOPE, IS
CALLED...
A TOE FAILURE
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GROUND CONTROL METHODS
USED BY SURFACE COAL MINES TO
PREVENT HIGHWALL ACCIDENTS
INCLUDE...
MAINTAINING PROPER SLOPE,
BARRIERS, ROCK BOLTING, BENCHES
OR TERRACES, REMOVING WATER
PRESSURE, SCALING LOOSE
MATERIAL
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WHEN MAKING A BOX CUT, WHAT
PRECAUTIONS SHOULD BE TAKEN?
MINIMIZE THE POSSIBILITY OF SPOIL
MATERIALS ROLLING INTO THE PIT
77.1002
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DRILLS IN OPERATION SHALL BE
AT ALL TIMES
ATTENDED
77.1009(a)
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WHAT ARE TWO MAJOR
CONCERNS WHEN WORKING ON
OR AROUND STOCK PILED
MATERIAL?
BRIDGING OVER DRAW OFF POINTS,
CREATING ENGULFING HAZARDS
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DRILL HOLES THAT NEED TO BE
COVERED ARE HOLES
TO CONSTITUE A HAZARD
LARGE ENOUGH
77.1011
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TRANSPORTATION & COMMUNICATION
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WHERE ARE BERMS REQUIRED?
ON ELEVATED ROADWAYS AND AT
DUMP SITES
77.1605(k)
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WHAT IS THE MINIMUM HEIGHT OF
A BERM?
AXLE HIGH OF THE LARGEST PIECE
OF EQUIPMENT USING THE AREA
(from PAGE 202, PPM, July 1, 1988)
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WHAT IS A PILE OR MOUND OF
MATERIAL CAPABLE OF
RESTRAINING A VEHICLE CALLED?
A BERM
77.2(d)
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COAL MINE OPERATORS MUST
ESTABLISH AND MAINTAIN A
BETWEEN THE MINE AND
THE NEAREST POINT OF MEDICAL
ASSISTANCE FOR USE IN AN
EMERGENCY
COMMUNICATION SYSTEM
77.1701(a)
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WHEN MUST YOU HAVE ACCESS TO
EMERGENCY MEDICAL ASSISTANCE
AND TRANSPORTATION FROM A
MINE PROPERTY IF YOU ARE
INJURED?
24 HOURS A DAY
77.1702(a)
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ACCORDING TO MSHA, PERSONS
SHALL NOT BE PERMITTED TO
RIDE OR BE TRANSPORTED ON OR
IN WHAT APPLIANCES OR
EQUIPMENT?
DIPPERS,SHOVELS, BUCKETS, FORKS,
CLAMSHELLS, CARGO SPACE OF
HAULAGE EQUIPMENT, OR OUTSIDE
THE CABS OR BEDS OF MOBILE
EQUIPMENT
77.1601(a),(b),(c)
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WHAT ARE THE MSHA
REQUIREMENTS FOR EQUIPMENT
CAB WINDOWS?
BE SAFETY GLASS OR EQUIVALENT, IN
GOOD CONDITON AND KEPT CLEAN
77.1605
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WHAT MUST BE PROVIDED TO
PREVENT OVERTRAVEL OR
OVERTURNING AT DUMP
LOCATIONS?
BERMS, BUMPER BLOCKS, SAFETY
HOOKS, OR SIMILAR MEANS
77.1605(l)
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HOW MUST SUPPLIES, MATERIALS,
TOOLS, ETC. BE TRANSPORTED
WITH MEN IN THE SAME VEHICLE?
SHALL NOT BE TRANSPORTED WITH
MEN IN MAN TRIP VEHICLES UNLESS
THE VEHICLE IS SPECIFFICALLY
DESIGNED TO MAKE SUCH
TRANSPORTATION SAFE
77.1604
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EQUIPMENT OPERATORS, SHALL BE
CERTAIN BY
THAT ALL
PERSONS ARE CLEAR BEFORE
STARTING OR MOVING EQUIPMENT
SIGNAL OR OTHER MEANS
77.1607(g)
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NAME FOUR FACTORS THAT
CREATE POTENTIAL HAZARDS FOR
HAULING COAL AND OVERBURDEN
AT COAL MINES.
1) POOR HAULAGE ROAD CONDITIONS
2) POOR VISIBILITY
3) DEFECTIVE EQUIPMENT
4) IMPROPERLY MARKED ROADS
(from 2000 Wyoming Surface Coal
Foreman’s Exam study guide)
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WHEN SHOULD YOU INSPECT
MOBILE LOADING AND HAULAGE
EQUIPMENT?
BEFORE SUCH EQUIPMENT IS PLACED
INTO OPERATION
77.1606(a)
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WHAT EQUIPMENT IS USED TO TOW
HEAVY EQUIPMENT?
TOW BARS AND SAFETY CHAIN
77.1607(u)
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COAL MINE EMPLOYEES SHALL
NOT BE ASSIGNED, ALLOWED OR
REQUIRED TO PERFORM WORK
ALONE IN AREAS WHERE
HAZARDOUS CONDITIONS EXIST
UNLESS...
THEY CAN COMMUNICATE WITH
OTHERS, CAN BE HEARD OR CAN BE
SEEN
77.1700
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HOW MUST EMERGENCY
COMMUNICATIONS, REQUIRED BY
MSHA, ON COAL MINE SITES BE
ESTABLISHED?
BY TELEPHONE, RADIO
TRANSMISSION, OR OTHER MEANS OF
PROMPT COMMUNICATION TO AN
EMERGENCY FACILITY
77.1701(b)
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MINE OPERATORS SHALL MAKE
ARRANGEMENTS FOR OR
OTHERWISE PROVIDE FOR...
24 HOUR EMERGENCY
TRANSPORTATION FOR ANY PERSON
INJURED AT THE MINE
77.1702(b)
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EACH OPERATOR SHALL,
IMMEDIATELY AFTER MAKING
INITIAL ARRANGEMENTS FOR
EMERGENCY MEDICAL CARE OR
IMMEDIATELY AFTER ANY CHANGE
OF SUCH AGREEMENT...
POST, AT APPROPRIATE PLACES, AT
THE MINE THE NAMES, TITLES,
ADRESSES, AND TELEPHONE
NUMBERS OS ALL PERSONS OR
SERVICES CURRENTLY AVAILABLE
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77.1702(e)
MOBILE EQUIPMENT OPERATORS
SHALL HAVE
OF THE
EQUIPMENT WHILE IT IS IN
MOTION.
FULL CONTROL
77.1607(b)
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VEHICLES SHALL FOLLOW AT A
SAFE DISTANCE; PASSING SHALL BE
LIMITED TO...
AREAS OF ADEQUATE CLEARANCE
AND VISIBILITY
77.1607(a)
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EQUIPMENT OPERATING SPEEDS
SHALL BE...
PRUDENT AND CONSISTANT WITH
CONDITIONS OF ROADWAY, GRADES,
CLEARANCE, VISIBILITY, TRAFFIC,
AND TYPE OF EQUIPMENT USED
77.1607(c)
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RESPIRATORY PROTECTION
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WHAT ARE THE THREE EFFICIENCY
LEVELS IDENTIFIED FOR
PARTICULATE RESPIRATORS UNDER
42 CFR 84?
95%, 99%, AND 99.97%
42 CFR 84
50
WHAT SIZE OF PARTICLE IS
CONSIDERED TO BE RESPIRABLE
DUST?
10 MICRONS OR SMALLER
51
WHAT IS THE ALLOWABLE COAL
DUST EXPOSURE ACCORDING TO
MSHA?
2 MILLIGRAMS PER CUBIC METER OF
AIR
(2MG/M3)
71.100
52
WHAT IS ?????
PNEUMOULTRAMICROSCOPICSILICOVOLCANOCIOSIS
??????
MINER’S SILICOSIS
(US BUREAU OF MINES DICTIONARY)
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WHAT ARE THE THREE SERIES OF
PARTICULATE RESPIRATORS
DESIGNATED UNDER 42 CFR 84?
N, R, AND P
42 CFR 84
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WHAT DO THE SERIES
DESIGNATIONS N, R, AND P UNDER
THE PARTICULATE RESPIRATOR
REGULATIONS STAND FOR?
N = NOT RESISTANT TO OIL AEROSOLS
R= RESISTANT TO OIL AEROSOLS
P = OIL AEROSOL PROOF
42 CFR 84
55
WHAT ARE THE PAPER DISPOSABLE
RESPIRATORS DESIGNED TO
PROTECT WORKERS FROM?
NUSIANCE DUSTS
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WHEN USING A RESPIRATOR TO
PROTECT EMPLOYEES FROM
SPECIFIC RESPIRATORY HAZARDS,
WHAT MUST BE ACCOMPLISHED
PRIOR TO RESPIRATOR USE?
QUALITATIVE AND QUANTITATIVE FIT
TESTING
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WHAT MINERAL COMMONLY
FOUND IN COAL MINE DUST CAN
MODIFY THE RESPIRABLE COAL
DUST STANDARD?
SILICA (QUARTZ) IN
CONCENTRATIONS OF 5% OR MORE
71.101
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IF YOU ARE WORKING IN AN AREA
WITH A RESPIRATORY HAZARD
REQUIRING MANDATORY WORKER
PROTECTION UNDER 42 CFR 84,
WHAT CLASS OF RESPIRATOR ARE
YOU USING?
P100
42 CFR 84
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RESPIRABLE DUST SAMPLING
REQUIRED TO BE PERFORMED
UNDER 30 CFR 71. MUST BE
CONDUCTED BY?
A CERTIFIED PERSON - SAMPLING
71.202
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WHO IS ALLOWED TO MAINTAIN
AND CALIBRATE APPROVED
SAMPLING DEVICES?
A CERTIFIED PERSON - MAINTENANCE
AND CALIBRATION
71.203
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WHAT REGULATIONS GOVERN THE
CALIBRATION AND MAINTENANCE
OF APPROVED DUST SAMPLING
DEVICES?
30 CFR 71
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WHAT IS SILICA?
SILICA OR SILICON DIOXIDE (SiO2),
THE AGENT RESPONSIBLE FOR
SILICOSIS, IS FORMED WHEN OXYGEN
COMBINES WITH SILICON.
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WHERE CAN WE FIND SILICA?
CRYSTALLINE SILICA (FREE SILICA) IS
MOST COMMONLY FOUND IN THE
FORM OF QUARTZ IN NEARLY ALL
MINERAL DEPOSITS. SOME ROCKS
ARE GRANITE, SANDSTONE,
LIMESTONE, SHALE, AND TRAPROCK.
SILICA IS THE PRINCIPLE
COMPONENT OF SAND AND OCCURS
IN MANY SOILS.
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WHAT SURFACE MINING JOBS ARE
AT HIGHEST RISK OF EXPOSURE TO
SILICA?
DRILLERS, HAULAGE WORKERS,
CRUSHING AND SIZING,
MAINTENANCE
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HOW DOES CRYSTALLINE SILICA
AFFECT THE BODY?
WHEN INHALED SILICA PARTICLES
EXCEED THE LUNG’S CAPACITY TO
REMOVE THEM, A HARDENING AND
SCARRING OR STIFFENING OF THE
LUNGS CAN OCCUR, REDUCING THE
LUNG’S ABILITY TO VENTILATE.
66
WHAT TYPES OF PNEUMOCONIOSIS
(DUST DISEASE) ARE WE MOST
CONCERNED ABOUT IN MINING?
SILICOSIS AND BLACK LUNG
67
WHAT ARE THE THREE
RECOGNIZED MAJOR TYPES OF
SILICOSIS?
CHRONIC SILICOSIS-THE MOST
COMMON-20 TO 45 YEARS OF
OVEREXPOSURE
ACCELERATED SILICOSIS-HIGH
CONCENTRATIONS-DEVELOPES IN 5
TO 10 YEARS
ACUTE SILICOSIS-VERY HIGH
CONCENTRATIONS-FEW WEEKS TO 4
TO 5 YEARS
68
IS THERE A DUST HAZARD IN YOUR
WORK AREA WHEN YOU CANNOT
SEE DUST?
POSSIBLY- THE DUST THAT IS
CAPABLE OF CAUSING LUNG DISEASE
(RESPIRABLE DUST) IS INVISIBLE TO
THE HUMAN EYE. RESPIRABLE DUST
IS 10 MICRONS OR SMALLER AND THE
SMALLEST PARTICLE OBSERVABLE BY
THE HUMAN EYE IS 40 TO 50 MICRONS
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MANDATORY HEALTH & SAFETY
STANDARDS
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GEARS, SPROCKETS, CHAINS,
PULLEYS, BELTS, FLYWHEELS, AND
SHAFTS MUST BE...
GUARDED
77.400(a)
71
WHAT DOES ROPS STAND FOR?
ROLL OVER PROTECTION SYSTEM
77.2(w)
72
WHEN CAN EMPLOYEES WORK
ALONE IN A HAZARDOUS AREA?
WHEN THEY CAN COMMUNICATE
WITH OTHERS, CAN BE HEARD OR
CAN BE SEEN 77.1700
73
ACCORDING TO MSHA, THIS SAFETY
DEVICE MUST BE ON HAND HELD
POWER TOOLS...
CONSTANT FINGER PRESSURE
CONTROLS
77.402
74
WHO IS ALLOWED TO GET ON OR
OFF MOVING PIECES OF
EQUIPMENT, ACCORDING TO MSHA?
TRAINMEN CAN GET ON OR OFF OF
SLOW MOVING TRAINS
77.1603(b)
75
WHEN MUST A PRE-SHIFT
EQUIPMENT INSPECTION BE
PERFORMED?
PRIOR TO STARTING TO WORK WITH A
PIECE OF EQUIPMENT
77.1606(a)
76
WHEN DOES MSHA REQUIRE HARD
HATS AND SAFETY GLASSES?
WHERE A HAZARD EXISTS
77.1710(a),(d)
77
SEAT BELTS DO NOT NEED TO BE
WORN IN MINING EQUIPMENT
WHEN...
THE BLADE OPERATOR IS STANDING
OR THERE IS NO ROPS
77.1710(i)
78
WHEN BACKING, MOBILE
EQUIPMENT ON MINE PROPERTY
MUST HAVE...
AUTOMATIC BACK ALARMS, OR AN
OBSERVER TO SIGNAL
77.410
79
LOADS EXTENDING BEYOND THE
BEDS OF VEHICLES MUST BE
MARKED WITH A LIGHT OR FLAG IF
THE LOAD EXTENDS MORE THAN
FEET.
4 FEET
77.1607(t)
80
THE METHANE CONTENT IN THE
AIR OF ANY STRUCTURE,
ENCLOSURE OR OTHER FACILITY
SHALL BE LESS THAN...
1.0 VOLUME PER CENTUM
77.201
81
WHAT CONDITION MUST MOBILE
OR STATIONARY MACHINERY BE IN
PRIOR TO INITIATING REPAIRS OR
MAINTENANCE?
POWER OFF, BLOCKED AGAINST
MOTION
77.404(c)
82
WHAT SHALL NOT BE ALLOWED TO
ACCUMULATE WHERE THEY CAN
CREATE A FIRE HAZARD?
COMBUSTIBLE MATERIALS, GREASE,
LUBRICANTS, PAINTS, OR
FLAMMABLE LIQUIDS
77.1104
83
WHAT DIFFERENCE IN PERSONAL
PROTECTIVE EQUIPMENT IS
REQUIRED OF MINERS WHO HAVE
LESS THAN ONE YEAR OF
EXPERIENCE?
A DISTINCTIVELY DIFFERENT
COLORED HARD HAT
77.1710-1
84
WHERE IS SMOKING PROHIBITED
AT SURFACE COAL MINES?
WHERE SUCH PRACTICE MAY CAUSE
A FIRE OR EXPLOSION
77.1711
85
WHAT MUST HAPPEN AFTER AN
OPERATOR IS CITED BY MSHA FOR A
VIOLATION OF THE RESPIRABLE
DUST STANDARD?
WITHIN 15 CALENDAR DAYS OF THE
VIOLATION, THE OPERATOR MUST
SUBMIT A WRITTEN RESPIRABLE
CONTROL PLAN APPLICABLE TO THE
WORK POSITION IDENTIFIED
71.300(a)
86
ACCORDING TO MSHA, HOW ARE
“ACTIVE WORKINGS” DEFINED?
ANY PLACE IN A COAL MINE WHERE
MINERS ARE NORMALLY REQUIRED
TO WORK OR TRAVEL
77.2(a)
87
HOW DO WE USE THE “AMERICAN
TABLE OF DISTANCES” IN
REFERENCE TO 30 CFR 77?
THIS DOCUMENT, REFERENCED IN 30
CFR 77 INDICATES HOW WE CAN
SAFELY LOCATE EXPLOSIVES
MAGAZINES
77.1301(c)(1)
88
HOW MANY FIRE EXTINGUISHERS
MUST BE PROVIDED AT WELDING,
CUTTING, AND SOLDERING
OPERATIONS?
AT LEAST ONE
77.1111
89
HOW OFTEN MUST FIRE
EXTINGUISHERS AT COAL MINES BE
EXAMINED FOR OPERABLE,
USEABLE CONDITION?
AT LEAST ONCE EVERY 6 MONTHS,
WITH THE DATE RECORDED ON A TAG
PERMANENTLY ATTACHED TO THE
EXTINGUISHER
77.1110
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EXPLOSIVES
91
WHAT IS NEEDED TO SEPARATE
DETONATORS AND EXPLOSIVES
DURING TRANSPORTATION?
4 INCHES OF HARDWOOD OR THE
EQUIVALENT
77.1302(f)
92
HOW FAR APART SHALL
DETONATOR MAGAZINES BE
SEPARATED FROM EXPLOSIVE
MAGAZINES?
25 FEET APART
77.1301(f)
93
HOW MUST EXPLOSIVE MAGAZINE
SIGNS BE LOCATED?
SO THAT A BULLET PASSING
THROUGH THE FACE OF THE SIGN
WILL NOT STRIKE THE MAGAZINE
77.1302(c)(9)
94
HOW HIGH CAN BOXES
CONTAINING EXPLOSIVES BE
STACKED IN MAGAZINES?
6 FEET
77.1301(g)
95
WHAT DO YOU DO TO THE DRILL
HOLE AREA AFTER HOLES HAVE
BEEN CHARGED?
THE AREA MUST BE BARRACADED,
POSTED, FLAGGED OR GUARDED
AGAINST UNAUTHORIZED ENTRY
77.1303(g)
96
MOST EXPLOSIVE ACCIDENTS OR
INJURIES ARE THE RESULT OF...
FLYROCK
97
ACCORDING TO MSHA, BLASTING
MUST BE UNDER THE SUPERVISION
OF...
AN EXPERIENCED BLASTER
77.1303(a)
98
WHEN ELECTRIC BLASTING CAPS
HAVE BEEN USED, PERSONS SHALL
NOT RETURN TO MISFIRED HOLES
FOR AT LEAST...
15 MINUTES
77.1303(m)
99
A PRODUCT THAT CONTAINS NO
EXPLOSIVE INGREDIENT AND IS NOT
CLASSED AS AN EXPLOSIVE BY THE
D.O.T. IS CALLED A...
BLASTING AGENT
77.2
100
THE AGENCY THAT CERTIFIES COAL
MINE BLASTERS IN THE STATE OF
WYOMING IS CALLED...
WYOMING DEPARTMENT OF
ENVIRONMENTAL QUALITY, LAND
QUALITY DIVISION
101
HOW SHALL EXPLOSIVES
MAGAZINES BE CONSTRUCTED?
REASONABLY BULLETPROOF AND
FREE OF METAL PROTRUDANCES,
ROOFS CONSTRUCTED OF
BULLETPROOF MATERIAL OR WITH
SAND TRAYS, DOORS OF 3/8” STEEL
LINED WITH 2” OF WOOD OR
EQUIVALENT
77.1301
102
THE AREA SURROUNDING THE
MAGAZINE FOR A DISTANCE OF NOT
LESS THAN 25 FEET SHALL BE KEPT
CLEAR OF...
RUBBISH, GRASS, OR ANY OTHER
COMBUSTIBLE MATERIAL
(FROM WYOMING COAL MINE
FOREMAN STUDY GUIDE)
103
THE PURCHASE, STORAGE, AND USE
OF EXPLOSIVES ARE CONTROLLED
BY WHICH AGENCIES?
BUREAU OF ALCOHOL, TOBACCO, AND
FIREARMS; MINE SAFETY AND
HEALTH ADMINISTRATION;
OCCUPATIONAL SAFETY AND HEALTH
ADMINISTRATION; OFFICE OF
SURFACE MINING; STATE MINE
INSPECTOR; AND LOCAL AGENCIES104
WHAT IS A BASIC DEFINITION OF A
HIGH EXPLOSIVE?
THOSE THAT ARE CAP SENSITIVE
105
HOW IS A “TYPE 2” EXPLOSIVES
MAGAZINE CONSTRUCTED?
“TYPE 2” MAGAZINES ARE PORTABLE,
SUCH AS A BOX, TRAILER, SEMI
TRAILER, OR OTHER MOBILE
FACILITY. IT MUST BE RESISTANT TO
BULLETS, FIRE, WEATHER, AND
THEFT AND BE WELL VENTILATED
106
HOW SHALL VEHICLES USED TO
TRANSPORT EXPLOSIVES (OTHER
THAN ANFO) BE CONSTRUCTED?
SUBSTANTIALLY CONSTRUCTED
BODIES, NO SPARKING METAL
EXPOSED IN THE CARGO SPACE,
EQUIPPED WITH SUITABLE SIDES AND
TAILGATE, DISPLAY PROPER
EXPLOSIVE SIGNS
77.1302
107
WHAT IS THE FIRST THING YOU DO
WHEN A MISFIRE HAS OCCURRED
WHEN USING ELECTRIC BLASTING
DETONATORS?
MISFIRES SHALL BE REPORTED TO
THE BLASTING SUPERVISOR IN
CHARGE, AND SHALL BE DISPOSED OF
SAFELY BEFORE ANY OTHER WORK IS
PERFORMED IN THAT BLASTING AREA
77.1303(ll)
108
WHAT SHOULD YOU LOOK FOR
AFTER SHOTS HAVE BEEN FIRED?
BLASTING AREAS SHALL BE
EXAMINED FOR UNDETONATED
EXPLOSIVES AFTER EACH BLAST AND
UNDETONATED EXPLOSIVES FOUND
SHALL BE DISPOSED OF SAFELY.
BLASTING AREAS SHALL NOT BE REENTERED BY ANY PERSON AFTER
FIRING UNTIL SUCH TIME AS
CONCENTRATIONS OF SMOKE, DUST,
AND FUMES HAVE BEEN REDUCED TO
SAFE LIMITS
77.1303(pp), (qq)
109
WHAT SHALL BE DONE BEFORE
SHOTS ARE FIRED ADJACENT TO
PLACES WHERE PEOPLE ARE
WORKING?
AMPLE WARNING SHALL BE GIVEN
BEFORE BLASTS ARE FIRED. ALL
PERSONS SHALL BE CLEARED AND
REMOVED FROM THE BLASTING AREA
UNLESS SUITABLE BLASTING
SHELTERS ARE PROVIDED TO
PROTECT PERSONS ENDANGERED BY
CONCUSSION OR FLY ROCK FROM
BLASTING
77.1303(h)
110
LEAD WIRES AND BLASTING LINES
SHALL NOT BE WITHIN FEET OF
BARE POWER LINES
20 FEET
77.1303(i)
111
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ELECTRICAL HAZARDS
112
HOW DOES MSHA DEFINE THE
TERM LOW VOLTAGE?
1 TO 660 VOLTS
77.2(s)
113
WHAT IS THE MINIMUM RATING
FOR GLOVES USED TO HANDLE
HIGH VOLTAGE TRAILING CABLES
ON COAL MINE PROPERTIES?
20,000 VOLTS
77.705-5, 77.606-1(a)
114
WHAT IS/ARE THE COMPONENT(S)
OF ELECTRICITY THAT ARE
DANGEROUS TO HUMANS?
AMPS OR AMPHERES
BONUS QUESTION
HOW MANY AMPS ARE GENERALLY CONSIDERED TO BE
FATAL UPON CONTACT?
50 TO 100 MILLIAMPS OR .05 TO .10 AMPS
115
WHAT MUST BE POSTED AT ALL
MAJOR ELECTRICAL
INSTALLATIONS?
SUITABLE DANGER SIGNS
77.511
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HOW DOES MSHA DEFINE THE
TERM MEDIUM VOLTAGE?
661 TO 1000 VOLTS
77.2(s)
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WHAT IS THE MINIMUM HEIGHT OF
HIGH VOLTAGE POWERLINES ON
COAL MINE PROPERTY?
15 FEET
77.807-1
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ACCORDING TO MSHA, HIGH
VOLTAGE IS…
OVER 1000 VOLTS
77.2(s)
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HIGH VOLTAGE RUBER GLOVES IN
COAL MINES MUST BE TESTED...
MONTHLY
77.704-8
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BOOMS OR MASTS OF EQUIPMENT
MUST NOT BE CLOSER THAN
FROM OVERHEAD POWERLINES OF
69,000 VOLTS.
12 FEET
77.807-2(a)(1)
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FOR POWERLINES OF 500,000 VOLTS
OR MORE
DISTANCE IS
REQUIRED FROM BOOMS OR MASTS
OF EQUIPMENT.
35 FEET
77.807-2
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HOW SHALL ELECTRICAL
CONNECTIONS OR SPLICES IN
INSULATED WIRE BE REINSULATED?
AT LEAST TO THE SAME DEGREE OF
PROTECTION AS THE REMAINDER OF
THE WIRE
77.504
123
HOW OFTEN MUST A QUALIFIED
ELECTRICIAN CHECK ELECTRIC
HAND TOOLS?
MONTHLY
77.502-2
124
YOU CAN EASILY TELL THAT A
POWER TOOL IS DOUBLE
INSULATED BY LOOKING AT ITS
POWER CORD…TRUE OR FALSE?
FALSE!
125
WHAT MUST BE DONE BEFORE
WORKING ON AN ENERGIZED
CIRCUIT OR EQUIPMENT?
DE-ENERGIZED, LOCKED AND
TAGGED
77.500, .501
126
EXPLAIN THE DIFFERENCE
BETWEEN TESTING AND
INSPECTION OF HIGH VOLTAGE
RUBBER GLOVES?
TEST: EVERY 30 DAYS ELECTRICALLY
INSPECT: BEFORE EACH USE FOR AIR
LEAKS AND VISUAL
77.704-6
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ANY TEST, EXAMINATION, REPAIR
OR ADJUSTMENT TO CIRCUIT
BREAKERS PROTECTING HIGHVOLTAGE CIRCUITS MUST BE
RECORDED…TRUE OR FALSE?
TRUE!
77.502,.900-1,.900-2
128
WHO CAN PERFORM WORK ON
ELECTRICAL CIRCUITS OR
ELECTRICAL EQUIPMENT AT A
COAL MINE?
AN MSHA QUALIFIED ELECTRICIAN
OR A TRIANED PERSON, WORKING
UNDEER THE DIRECT SUPERVISION
OF A QUALIFIED PERSON
77.501
129
ELECTRICAL CONNECTIONS OR
SPLICES IN ELECTRIC
CONDUCTORS SHALL BE
,
AND SUITABLE CONNECTORS
SHALL BE USED.
MECHANICALLY AND ELECTRICALLY
EFFICIENT
77.504
130
CABLES SHALL ENTER METAL
FRAMES OF MOTORS, SPLICE
BOXES, AND ELECTRIC
COMPARTMENTS…
ONLY THROUGH PROPER FITTINGS
77.705
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INSPECTION AND COVER PLATES ON
ELECTRICAL EQUIPMENT SHALL BE
AT ALL TIMES EXCEPT
DURING TESTING OR REPAIRS.
KEPT IN PLACE
77.512
132
REMEMBER!
A SAFE SHIFT IS NO
ACCIDENT!
THANKS FOR PLAYING
“IN PURSUIT OF SAFETY”
REMBER TO WORK SAFELY,
ALWAYS, THANK YOU!