2001 annual refresher “in pursuit of safety” wy msha state grant program
TRANSCRIPT
2001 ANNUAL REFRESHER
“IN PURSUIT OF SAFETY”
WY MSHA STATE GRANT PROGRAM
2
RULES OF PLAY FOR “IN PURSUIT OF SAFETY” 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 PLAY- HIGHEST ROLL GOING FIRST
3
RULES OF PLAY FOR “IN PURSUIT OF SAFETY”
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 INSTRUCTOR
4
RULES OF PLAY FOR “IN PURSUIT OF SAFETY”
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
5
RULES OF PLAY FOR “IN PURSUIT OF SAFETY” 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!
6
GROUND CONTROL
TRANSPORTATION & COMMUNICATION
RESPIRATORY PROTECTION
MANDATORY H & S STANDARDS
EXPLOSIVES
ELECTRICAL HAZARDS
7
GROUND CONTROL
2 3 4 5 6 7 8 9
10
1
11 12 13 14 15 16 17 18
19 20
8
THE TERM USED TO DESCRIBE THE ANGLE THAT A FREE-PILED MATERIAL MAKES WITH A HORIZONTAL PLANE
ANGLE OF REPOSE
9
MINING METHODS EMPLOYED BY THE OPERATOR SHALL BE SELECTED TO ENSURE(REGARDING WORKER SAFETY)
HIGHWALL AND SPOIL BANK STABILITY
77.1000
10
WHEN SHOULD HIGHWALLS, BANKS, AND BENCHES, ETC. BE INSPECTED?
AFTER EVERY RAIN, FREEZE OR THAW, BEFORE MINERS WORK IN
SUCH AREAS 77.1004(a)
11
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)
12
GROUND CONDITIONS AT SURFACE COAL MINES SHALL BE EXAMINED BY:
CERTIFIED PERSONS 77.1713(a)
13
EACH OPERATOR SHALL ESTABLISH AND FOLLOW A FOR THE SAFE CONTROL OF ALL HIGHWALLS, PITS AND SPOIL BANKS.
GROUND CONTROL PLAN 77.1000
14
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
15
WHAT IS A SLOPE FAILURE THAT OCCURS ALONG A PLANE OR BETWEEN LAYERS OF MATERIAL
PLANE SHEAR
16
WHAT MUST BE DONE WITH OVERHANGING HIGHWALLS, BANKS AND OTHER UNSAFE GROUND CONDITIONS?
PROMPTLY CORRECTED OR THE AREA POSTED
77.1004(b)
17
GROUND CONTROL TECHNIQUES OR METHODS
TECHNIQUES USED TO PREVENT OR CONTAIN SLOPE FAILURES ARE COMMONLY REFERRED TO AS:
18
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
19
WHAT IS THE TERM FOR A TYPE OF EMBANKMENT FAILURE THAT OCCURS AT OR ABOVE THE TOE OF A SLOPE...
A SLOPE FAILURE
20
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
21
WHEN CAN MINERS WORK NEAR OR UNDER DANGEROUS HIGHWALLS?
ONLY WHEN CORRECTING UNSAFE CONDITIONS
77.1006(a)
22
A TYPE OF EMBANKMENT FAILURE WHERE THE FAILURE OCCURS BELOW THE TOE OF THE SLOPE, IS CALLED...
A TOE FAILURE
23
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
24
WHEN MAKING A BOX CUT, WHAT PRECAUTIONS SHOULD BE TAKEN?
MINIMIZE THE POSSIBILITY OF SPOIL MATERIALS ROLLING INTO THE PIT
77.1002
25
DRILLS IN OPERATION SHALL BE AT ALL TIMES
ATTENDED77.1009(a)
26
WHAT ARE TWO MAJOR CONCERNS WHEN WORKING ON OR AROUND STOCK PILED MATERIAL?
BRIDGING OVER DRAW OFF POINTS, CREATING ENGULFING HAZARDS
27
DRILL HOLES THAT NEED TO BE COVERED ARE HOLESTO CONSTITUE A HAZARD
LARGE ENOUGH77.1011
28
TRANSPORTATION & COMMUNICATION
1 2 3 4 5 6 7 8 9
10 11 13 14 15 16 17 18
19 20
12
29
WHERE ARE BERMS REQUIRED?
ON ELEVATED ROADWAYS AND AT DUMP SITES
77.1605(k)
30
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)
31
WHAT IS A PILE OR MOUND OF MATERIAL CAPABLE OF RESTRAINING A VEHICLE CALLED?
A BERM 77.2(d)
32
COAL MINE OPERATORS MUST ESTABLISH AND MAINTAIN A
BETWEEN THE MINE AND THE NEAREST POINT OF MEDICAL ASSISTANCE FOR USE IN AN EMERGENCY
COMMUNICATION SYSTEM77.1701(a)
33
WHEN MUST YOU HAVE ACCESS TO EMERGENCY MEDICAL ASSISTANCE AND TRANSPORTATION FROM A MINE PROPERTY IF YOU ARE INJURED?
24 HOURS A DAY77.1702(a)
34
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
EQUIPMENT77.1601(a),(b),(c)
35
WHAT ARE THE MSHA REQUIREMENTS FOR EQUIPMENT CAB WINDOWS?
BE SAFETY GLASS OR EQUIVALENT, IN GOOD CONDITON AND KEPT CLEAN
77.1605
36
WHAT MUST BE PROVIDED TO PREVENT OVERTRAVEL OR OVERTURNING AT DUMP LOCATIONS?
BERMS, BUMPER BLOCKS, SAFETY HOOKS, OR SIMILAR MEANS
77.1605(l)
37
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 SAFE77.1604
38
EQUIPMENT OPERATORS, SHALL BE CERTAIN BY THAT ALL PERSONS ARE CLEAR BEFORE STARTING OR MOVING EQUIPMENT
SIGNAL OR OTHER MEANS77.1607(g)
39
NAME FOUR FACTORS THAT CREATE POTENTIAL HAZARDS FOR HAULING COAL AND OVERBURDEN AT COAL MINES.
1) POOR HAULAGE ROAD CONDITIONS2) POOR VISIBILITY
3) DEFECTIVE EQUIPMENT4) IMPROPERLY MARKED ROADS
(from 2000 Wyoming Surface Coal Foreman’s Exam study guide)
40
WHEN SHOULD YOU INSPECT MOBILE LOADING AND HAULAGE EQUIPMENT?
BEFORE SUCH EQUIPMENT IS PLACED INTO OPERATION
77.1606(a)
41
WHAT EQUIPMENT IS USED TO TOW HEAVY EQUIPMENT?
TOW BARS AND SAFETY CHAIN77.1607(u)
42
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
SEEN77.1700
43
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)
44
MINE OPERATORS SHALL MAKE ARRANGEMENTS FOR OR OTHERWISE PROVIDE FOR...
24 HOUR EMERGENCY TRANSPORTATION FOR ANY PERSON
INJURED AT THE MINE77.1702(b)
45
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 AVAILABLE77.1702(e)
46
MOBILE EQUIPMENT OPERATORS SHALL HAVE OF THE EQUIPMENT WHILE IT IS IN MOTION.
FULL CONTROL77.1607(b)
47
VEHICLES SHALL FOLLOW AT A SAFE DISTANCE; PASSING SHALL BE LIMITED TO...
AREAS OF ADEQUATE CLEARANCE AND VISIBILITY
77.1607(a)
48
EQUIPMENT OPERATING SPEEDS SHALL BE...
PRUDENT AND CONSISTANT WITH CONDITIONS OF ROADWAY, GRADES,
CLEARANCE, VISIBILITY, TRAFFIC, AND TYPE OF EQUIPMENT USED
77.1607(c)
49
RESPIRATORY PROTECTION
1 2 3 4 5 6 7 8 9
10
11 13
10
16 18171514 19
20
12
50
WHAT ARE THE THREE EFFICIENCY LEVELS IDENTIFIED FOR PARTICULATE RESPIRATORS UNDER 42 CFR 84?
95%, 99%, AND 99.97%42 CFR 84
51
WHAT SIZE OF PARTICLE IS CONSIDERED TO BE RESPIRABLE DUST?
10 MICRONS OR SMALLER
52
WHAT IS THE ALLOWABLE COAL DUST EXPOSURE ACCORDING TO MSHA?
2 MILLIGRAMS PER CUBIC METER OF AIR
(2MG/M3)71.100
53
WHAT IS ????? PNEUMOULTRAMICROSCOPICSILICOVOLCANOCIOSIS
??????
MINER’S SILICOSIS(US BUREAU OF MINES DICTIONARY)
54
WHAT ARE THE THREE SERIES OF PARTICULATE RESPIRATORS DESIGNATED UNDER 42 CFR 84?
N, R, AND P42 CFR 84
55
WHAT DO THE SERIES DESIGNATIONS N, R, AND P UNDER THE PARTICULATE RESPIRATOR REGULATIONS STAND FOR?
N = NOT RESISTANT TO OIL AEROSOLSR= RESISTANT TO OIL AEROSOLS
P = OIL AEROSOL PROOF42 CFR 84
56
WHAT ARE THE PAPER DISPOSABLE RESPIRATORS DESIGNED TO PROTECT WORKERS FROM?
NUSIANCE DUSTS
57
WHEN USING A RESPIRATOR TO PROTECT EMPLOYEES FROM SPECIFIC RESPIRATORY HAZARDS, WHAT MUST BE ACCOMPLISHED PRIOR TO RESPIRATOR USE?
QUALITATIVE AND QUANTITATIVE FIT TESTING
58
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
59
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?
P10042 CFR 84
60
RESPIRABLE DUST SAMPLING REQUIRED TO BE PERFORMED UNDER 30 CFR 71. MUST BE CONDUCTED BY?
A CERTIFIED PERSON - SAMPLING71.202
61
WHO IS ALLOWED TO MAINTAIN AND CALIBRATE APPROVED SAMPLING DEVICES?
A CERTIFIED PERSON - MAINTENANCE AND CALIBRATION
71.203
62
WHAT REGULATIONS GOVERN THE CALIBRATION AND MAINTENANCE OF APPROVED DUST SAMPLING DEVICES?
30 CFR 71
63
WHAT IS SILICA?
SILICA OR SILICON DIOXIDE (SiO2), THE AGENT RESPONSIBLE FOR
SILICOSIS, IS FORMED WHEN OXYGEN COMBINES WITH SILICON.
64
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.
65
WHAT SURFACE MINING JOBS ARE AT HIGHEST RISK OF EXPOSURE TO SILICA?
DRILLERS, HAULAGE WORKERS, CRUSHING AND SIZING,
MAINTENANCE
66
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.
67
WHAT TYPES OF PNEUMOCONIOSIS (DUST DISEASE) ARE WE MOST CONCERNED ABOUT IN MINING?
SILICOSIS AND BLACK LUNG
68
WHAT ARE THE THREE RECOGNIZED MAJOR TYPES OF SILICOSIS?
CHRONIC SILICOSIS-THE MOST COMMON-20 TO 45 YEARS OF
OVEREXPOSUREACCELERATED SILICOSIS-HIGH
CONCENTRATIONS-DEVELOPES IN 5 TO 10 YEARS
ACUTE SILICOSIS-VERY HIGH CONCENTRATIONS-FEW WEEKS TO 4
TO 5 YEARS
69
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
70
MANDATORY HEALTH & SAFETY STANDARDS
1 2
10
3 4 5 6 7 8 9
11 12 13 14 15 16 17
19
18
20
71
GEARS, SPROCKETS, CHAINS, PULLEYS, BELTS, FLYWHEELS, AND SHAFTS MUST BE...
GUARDED 77.400(a)
72
WHAT DOES ROPS STAND FOR?
ROLL OVER PROTECTION SYSTEM77.2(w)
73
WHEN CAN EMPLOYEES WORK ALONE IN A HAZARDOUS AREA?
WHEN THEY CAN COMMUNICATE WITH OTHERS, CAN BE HEARD OR
CAN BE SEEN 77.1700
74
ACCORDING TO MSHA, THIS SAFETY DEVICE MUST BE ON HAND HELD POWER TOOLS...
CONSTANT FINGER PRESSURE CONTROLS
77.402
75
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)
76
WHEN MUST A PRE-SHIFT EQUIPMENT INSPECTION BE PERFORMED?
PRIOR TO STARTING TO WORK WITH A PIECE OF EQUIPMENT
77.1606(a)
77
WHEN DOES MSHA REQUIRE HARD HATS AND SAFETY GLASSES?
WHERE A HAZARD EXISTS77.1710(a),(d)
78
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)
79
WHEN BACKING, MOBILE EQUIPMENT ON MINE PROPERTY MUST HAVE...
AUTOMATIC BACK ALARMS, OR AN OBSERVER TO SIGNAL
77.410
80
LOADS EXTENDING BEYOND THE BEDS OF VEHICLES MUST BE MARKED WITH A LIGHT OR FLAG IF THE LOAD EXTENDS MORE THAN
FEET.
4 FEET77.1607(t)
81
THE METHANE CONTENT IN THE AIR OF ANY STRUCTURE, ENCLOSURE OR OTHER FACILITY SHALL BE LESS THAN...
1.0 VOLUME PER CENTUM77.201
82
WHAT CONDITION MUST MOBILE OR STATIONARY MACHINERY BE IN PRIOR TO INITIATING REPAIRS OR MAINTENANCE?
POWER OFF, BLOCKED AGAINST MOTION77.404(c)
83
WHAT SHALL NOT BE ALLOWED TO ACCUMULATE WHERE THEY CAN CREATE A FIRE HAZARD?
COMBUSTIBLE MATERIALS, GREASE, LUBRICANTS, PAINTS, OR
FLAMMABLE LIQUIDS77.1104
84
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
85
WHERE IS SMOKING PROHIBITED AT SURFACE COAL MINES?
WHERE SUCH PRACTICE MAY CAUSE A FIRE OR EXPLOSION
77.1711
86
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)
87
ACCORDING TO MSHA, HOW ARE “ACTIVE WORKINGS” DEFINED?
ANY PLACE IN A COAL MINE WHERE MINERS ARE NORMALLY REQUIRED
TO WORK OR TRAVEL77.2(a)
88
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 MAGAZINES77.1301(c)(1)
89
HOW MANY FIRE EXTINGUISHERS MUST BE PROVIDED AT WELDING, CUTTING, AND SOLDERING OPERATIONS?
AT LEAST ONE77.1111
90
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
91
EXPLOSIVES
1 2 3 4 5 6 7 8 9
10 11 12 13 1514 16 17 18
19 20
92
WHAT IS NEEDED TO SEPARATE DETONATORS AND EXPLOSIVES DURING TRANSPORTATION?
4 INCHES OF HARDWOOD OR THE EQUIVALENT
77.1302(f)
93
HOW FAR APART SHALL DETONATOR MAGAZINES BE SEPARATED FROM EXPLOSIVE MAGAZINES?
25 FEET APART 77.1301(f)
94
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)
95
HOW HIGH CAN BOXES CONTAINING EXPLOSIVES BE STACKED IN MAGAZINES?
6 FEET 77.1301(g)
96
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)
97
MOST EXPLOSIVE ACCIDENTS OR INJURIES ARE THE RESULT OF...
FLYROCK
98
ACCORDING TO MSHA, BLASTING MUST BE UNDER THE SUPERVISION OF...
AN EXPERIENCED BLASTER 77.1303(a)
99
WHEN ELECTRIC BLASTING CAPS HAVE BEEN USED, PERSONS SHALL NOT RETURN TO MISFIRED HOLES FOR AT LEAST...
15 MINUTES77.1303(m)
100
A PRODUCT THAT CONTAINS NO EXPLOSIVE INGREDIENT AND IS NOT CLASSED AS AN EXPLOSIVE BY THE D.O.T. IS CALLED A...
BLASTING AGENT77.2
101
THE AGENCY THAT CERTIFIES COAL MINE BLASTERS IN THE STATE OF WYOMING IS CALLED...
WYOMING DEPARTMENT OF ENVIRONMENTAL QUALITY, LAND
QUALITY DIVISION
102
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
103
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)
104
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 AGENCIES
105
WHAT IS A BASIC DEFINITION OF A HIGH EXPLOSIVE?
THOSE THAT ARE CAP SENSITIVE
106
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
107
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
108
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
AREA77.1303(ll)
109
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 RE-
ENTERED BY ANY PERSON AFTER FIRING UNTIL SUCH TIME AS
CONCENTRATIONS OF SMOKE, DUST, AND FUMES HAVE BEEN REDUCED TO
SAFE LIMITS77.1303(pp), (qq)
110
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
BLASTING77.1303(h)
111
LEAD WIRES AND BLASTING LINES SHALL NOT BE WITHIN FEET OF BARE POWER LINES
20 FEET77.1303(i)
112ELECTRICAL HAZARDS
1 2 3 4 5 6 7 8 9
10 11 12 13 14 15 16
19 20
1817
113
HOW DOES MSHA DEFINE THE TERM LOW VOLTAGE?
1 TO 660 VOLTS77.2(s)
114
WHAT IS THE MINIMUM RATING FOR GLOVES USED TO HANDLE HIGH VOLTAGE TRAILING CABLES ON COAL MINE PROPERTIES?
20,000 VOLTS77.705-5, 77.606-1(a)
115
WHAT IS/ARE THE COMPONENT(S) OF ELECTRICITY THAT ARE DANGEROUS TO HUMANS?
AMPS OR AMPHERESBONUS QUESTION
HOW MANY AMPS ARE GENERALLY CONSIDERED TO BE FATAL UPON CONTACT?
50 TO 100 MILLIAMPS OR .05 TO .10 AMPS
116
WHAT MUST BE POSTED AT ALL MAJOR ELECTRICAL INSTALLATIONS?
SUITABLE DANGER SIGNS77.511
117
HOW DOES MSHA DEFINE THE TERM MEDIUM VOLTAGE?
661 TO 1000 VOLTS77.2(s)
118
WHAT IS THE MINIMUM HEIGHT OF HIGH VOLTAGE POWERLINES ON COAL MINE PROPERTY?
15 FEET77.807-1
119
ACCORDING TO MSHA, HIGH VOLTAGE IS…
OVER 1000 VOLTS77.2(s)
120
HIGH VOLTAGE RUBER GLOVES IN COAL MINES MUST BE TESTED...
MONTHLY77.704-8
121
BOOMS OR MASTS OF EQUIPMENT MUST NOT BE CLOSER THAN FROM OVERHEAD POWERLINES OF 69,000 VOLTS.
12 FEET77.807-2(a)(1)
122
FOR POWERLINES OF 500,000 VOLTS OR MORE DISTANCE IS REQUIRED FROM BOOMS OR MASTS OF EQUIPMENT.
35 FEET77.807-2
123
HOW SHALL ELECTRICAL CONNECTIONS OR SPLICES IN INSULATED WIRE BE REINSULATED?
AT LEAST TO THE SAME DEGREE OF PROTECTION AS THE REMAINDER OF
THE WIRE77.504
124
HOW OFTEN MUST A QUALIFIED ELECTRICIAN CHECK ELECTRIC HAND TOOLS?
MONTHLY77.502-2
125
YOU CAN EASILY TELL THAT A POWER TOOL IS DOUBLE INSULATED BY LOOKING AT ITS POWER CORD…TRUE OR FALSE?
FALSE!
126
WHAT MUST BE DONE BEFORE WORKING ON AN ENERGIZED CIRCUIT OR EQUIPMENT?
DE-ENERGIZED, LOCKED AND TAGGED
77.500, .501
127
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
128
ANY TEST, EXAMINATION, REPAIR OR ADJUSTMENT TO CIRCUIT BREAKERS PROTECTING HIGH-VOLTAGE CIRCUITS MUST BE RECORDED…TRUE OR FALSE?
TRUE!77.502,.900-1,.900-2
129
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
130
ELECTRICAL CONNECTIONS OR SPLICES IN ELECTRIC CONDUCTORS SHALL BE , AND SUITABLE CONNECTORS SHALL BE USED.
MECHANICALLY AND ELECTRICALLY EFFICIENT
77.504
131
CABLES SHALL ENTER METAL FRAMES OF MOTORS, SPLICE BOXES, AND ELECTRIC COMPARTMENTS…
ONLY THROUGH PROPER FITTINGS77.705
132
INSPECTION AND COVER PLATES ON ELECTRICAL EQUIPMENT SHALL BE AT ALL TIMES EXCEPT DURING TESTING OR REPAIRS.
KEPT IN PLACE77.512
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