CMR MCQ Practice Exam

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Question 1 of 181

In manual opencast workings in alluvial soil, morum, gravel, clay, or similar ground, the sides shall be sloped at an angle not exceeding:

30° 37.5° 45° 60°

Question 2 of 181

In manual opencast workings, the maximum height of any bench in alluvial soil or similar ground shall be:

1.0 m 1.5 m 3.0 m 6.0 m

Question 3 of 181

The minimum width of a bench in manual opencast workings in loose ground shall be:

Half the height of the bench Equal to the height of the bench Twice the height of the bench Three times the height of the bench

Question 4 of 181

Where a pillar is left in situ for measurement purposes, its maximum height shall be:

1.5 m 2.0 m 2.5 m 3.0 m

Question 5 of 181

If the height of a measurement pillar exceeds 1.25 m, its base diameter shall not be less than:

1.0 m 1.25 m 1.5 m 2.0 m

Question 6 of 181

In manual opencast coal workings, the maximum height of any bench shall be:

1.5 m 2.5 m 3.0 m 6.0 m

Question 7 of 181

In hard and compact ground, the maximum bench height shall not exceed:

3 m 4.5 m 6 m 9 m

Question 8 of 181

In mechanised opencast workings, the maximum bench height in overburden consisting of alluvial soil, clay, morum, or gravel shall be:

1.5 m 2.5 m 3.0 m 6.0 m

Question 9 of 181

The minimum width of an overburden bench in mechanised opencast workings shall be:

Equal to the bench height Twice the bench height Three times the bench height Four times the bench height

Question 10 of 181

The height of a mechanised working bench shall not exceed:

The height of the dump truck The digging height or reach of the excavating machine 10 metres 15 metres

Question 11 of 181

If dumpers ply on a mechanised bench, the minimum width of the bench shall be:

Equal to dumper width Twice the dumper width Three times the dumper width Four times the dumper width

Question 12 of 181

The slope of a spoil bank shall not exceed:

30° 35° 37.5° 45°

Question 13 of 181

Any spoil bank exceeding _____ in height shall be benched.

15 m 20 m 25 m 30 m

Question 14 of 181

In spoil banks, the height of each bench shall not exceed:

15 m 20 m 25 m 30 m

Question 15 of 181

The overall slope of a benched spoil bank shall not exceed:

1 Vertical : 1 Horizontal 1 Vertical : 1.5 Horizontal 1 Vertical : 2 Horizontal 1 Vertical : 3 Horizontal

Question 16 of 181

Where the seam depth does not exceed 60 metres and gallery width does not exceed 3.0 metres, the minimum distance between centres of adjacent pillars shall be:

10.5 m 12.0 m 13.5 m 15.0 m

Question 17 of 181

Where the seam depth exceeds 60 m but does not exceed 90 m, and gallery width is 3.6 m, the minimum pillar centre distance shall be:

15.0 m 16.5 m 18.0 m 19.5 m

Question 18 of 181

Where the seam depth exceeds 90 m but does not exceed 150 m, and gallery width is 4.2 m, the minimum pillar centre distance shall be:

19.5 m 20.5 m 22.5 m 25.5 m

Question 19 of 181

Where the seam depth exceeds 240 m but does not exceed 360 m, and gallery width is 4.8 m, the minimum pillar centre distance shall be:

39.5 m 42.0 m 45.0 m 48.0 m

Question 20 of 181

Where the seam depth exceeds 360 metres, and gallery width does not exceed 4.8 metres, the minimum distance between centres of adjacent pillars shall be:

42.0 m 45.0 m 48.0 m 50.0 m

Question 21 of 181

When an entry is made in the inspection register, who shall be deemed to know its contents?

Manager only Owner only Owner, Agent, and Manager Overman only

Question 22 of 181

A copy of the inspection register entry shall be displayed on the mine notice board within:

12 hours 1 day 3 days 7 days

Question 23 of 181

The inspection entry shall remain displayed on the notice board for at least:

7 days 10 days 15 days 30 days

Question 24 of 181

Working in more than one section of a seam requires prior written permission from the:

Manager Regional Inspector Chief Inspector Owner

Question 25 of 181

Two seams lying within _____ of each other shall not be worked without prior written permission.

6 m 7.5 m 9 m 12 m

Question 26 of 181

Pillars in adjoining seams should, as far as practicable, be:

Diagonal to each other Vertically above or below each other Randomly placed Offset by half a pillar width

Question 27 of 181

Vertical alignment of pillars is not necessary if the strata are inclined at more than:

20° 25° 30° 45°

Question 28 of 181

The minimum parting between two seams or sections shall be:

1.5 m 2 m 3 m 5 m

Question 29 of 181

No working or pillar extraction shall be carried out within _____ of a railway or public road unless permitted.

30 m 45 m 60 m 75 m

Question 30 of 181

No working shall be made within _____ of the boundary of another mine.

5 m 6 m 7.5 m 10 m

Question 31 of 181

In existing mines, the Strata Control and Monitoring Plan (SCAMP)/Support Plan shall be framed and enforced within:

15 days 30 days 60 days 90 days

Question 32 of 181

Where a prop is set on sand or loose material, the base-piece shall be at least _____ thick.

2 cm 5 cm 8 cm 10 cm

Question 33 of 181

The minimum width of the base-piece used under a prop shall be:

15 cm 20 cm 25 cm 30 cm

Question 34 of 181

The minimum length of the base-piece used under a prop shall be:

50 cm 60 cm 75 cm 100 cm

Question 35 of 181

The lid used over a prop shall have a minimum thickness of:

5 cm 6 cm 8 cm 10 cm

Question 36 of 181

The minimum length of a prop lid shall be:

30 cm 40 cm 50 cm 75 cm

Question 37 of 181

Where a bar is fixed into the sides of a roadway, the supporting holes shall be at least:

25 cm deep 40 cm deep 50 cm deep 75 cm deep

Question 38 of 181

The minimum number of laggings required shall be:

One for every 2 metres of bar One for every metre of bar Two for every metre of bar Three for every metre of bar

Question 39 of 181

Cogging members shall be not less than:

0.9 m 1.0 m 1.2 m 1.5 m

Question 40 of 181

In workings inclined at _____ or more, precautions shall be taken to prevent timber and materials from falling.

20° 25° 30° 45°

Question 41 of 181

A person working where the inclination is _____ or more shall wear a safety belt or lifeline.

30° 35° 45° 60°

Question 42 of 181

Where surface subsidence is likely to endanger persons, the affected area shall be:

Sign-posted only Whitewashed only Securely and effectively fenced Guarded only during the day

Question 43 of 181

Where a shaft, staple pit, or gallery has an inclination exceeding _____ and leads directly into a working place, it shall be securely guarded.

20° 25° 30° 45°

Question 44 of 181

Every place in a mine where persons work, pass, or are stationed shall be placed under the charge of:

Manager Overman Sirdar or other competent person Surveyor

Question 45 of 181

If there is doubt regarding the size of the district assigned to a Sirdar, the matter shall be referred to the:

Regional Inspector Chief Inspector Manager Director General

Question 46 of 181

Every station fixed at the entrance of a mine or district shall be clearly marked:

CHECK POST ENTRY STATION INSPECTION POINT

Question 47 of 181

Before workers are allowed beyond the station, the mine or district must be:

Surveyed only Examined and found safely ventilated and in safe condition Watered only Measured only

Question 48 of 181

The Sirdar shall inspect the assigned district within _____ before the commencement of work in a shift.

30 minutes 1 hour 2 hours 4 hours

Question 49 of 181

During a shift, the Sirdar shall re-examine accessible roadways and workplaces at least once every:

2 hours 3 hours 4 hours 6 hours

Question 50 of 181

The statutory examination shall be carried out using:

Torch only Approved flame safety lamp or approved apparatus Candle lamp Battery torch only

Question 51 of 181

In a fiery seam, the Sirdar shall also carry an approved apparatus for detecting:

Methane only Carbon dioxide Carbon monoxide Oxygen only

Question 52 of 181

During opencast inspections, the Sirdar shall examine loose stones, trees, and overhangs within:

1 m of the edge 2 m of the edge 3 m of the edge 5 m of the edge

Question 53 of 181

Surface structures within _____ of any mine entrance shall be constructed of fireproof material.

5 m 10 m 15 m 20 m

Question 54 of 181

Combustible or inflammable materials shall not be stored within _____ of any mine entrance.

10 m 12 m 15 m 20 m

Question 55 of 181

No person shall light a fire within _____ of any entrance to a mine.

5 m 10 m 15 m 20 m

Question 56 of 181

Surface fire-prone areas shall be inspected by a competent person at least once every:

Day Week Month Quarter

Question 57 of 181

Carbon monoxide shall be tested using an approved automatic detector at least once every:

Day Week Month Three months

Question 58 of 181

Complete gas analysis to determine the ratio of CO formed to oxygen absorbed shall be carried out once every:

Week 15 days 30 days 60 days

Question 59 of 181

Fire-fighting equipment shall be examined at least once every:

Week Month Three months Six months

Question 60 of 181

During the monthly inspection, fire extinguishers shall be:

Painted only Weighed only Discharged and refilled Replaced every month

Question 61 of 181

Special precautions are required where mine outlets are within _____ of an active fire or spontaneous heating.

30 m 45 m 60 m 75 m

Question 62 of 181

Special precautions also apply where the parting between a working seam and an overlying seam on fire consists of less than:

5 m of hard rock 7.5 m of hard rock 10 m of hard rock 15 m of hard rock

Question 63 of 181

Where work is carried out wholly in a coal seam and free respirable silica is less than 5%, the maximum permissible 8-hour time-weighted average concentration of respirable dust is:

1 mg/m³ 2 mg/m³ 5 mg/m³ 10 mg/m³

Question 64 of 181

Where free respirable silica exceeds 5%, the permissible dust concentration is determined by:

20 ÷ % silica 15 ÷ % silica 10 ÷ % silica 5 ÷ % silica

Question 65 of 181

Air sampling for respirable dust at every workplace shall be carried out at least once every:

Week Month Three months Six months

Question 66 of 181

Measurements of airborne respirable dust shall be recorded within _____ of the date of sample collection.

7 days 10 days 14 days 30 days

Question 67 of 181

Every dust measurement entry shall be countersigned by the Manager within:

12 hours 24 hours 48 hours 7 days

Question 68 of 181

Screening or sorting plants and heaps of dry fine materials shall not, as far as practicable, be located within _____ of the top of a downcast shaft or intake airway.

30 m 50 m 80 m 100 m

Question 69 of 181

Every underground mine shall maintain a dust plan on a scale having a representative factor of at least:

1000 : 1 1500 : 1 2000 : 1 5000 : 1

Question 70 of 181

In coal seams containing less than 30% volatile matter, the incombustible content of deposited dust shall not be less than:

65% 70% 75% 85%

Question 71 of 181

In coal seams containing more than 30% volatile matter, deposited dust shall contain at least:

75% 80% 85% 90%

Question 72 of 181

When water treatment is used for dust suppression, the deposited dust shall contain at least _____ water by weight.

20% 25% 30% 40%

Question 73 of 181

Incombustible dust used for stone dusting shall not contain more than _____ free silica.

2% 5% 10% 15%

Question 74 of 181

In mines producing less than _____ per month, the Dust In-charge may also act as the Sampling In-charge.

2000 tonnes 3000 tonnes 5000 tonnes 10000 tonnes

Question 75 of 181

Return airways within _____ of the last working face shall be divided into zones.

100 m 150 m 200 m 300 m

Question 76 of 181

Each dust sampling zone shall not exceed:

100 m 150 m 200 m 250 m

Question 77 of 181

Every sampling zone shall be divided into:

Two equal sections Three equal sections Four equal sections Five equal sections

Question 78 of 181

Representative dust samples shall be collected from every zone once every:

15 days 30 days 60 days 90 days

Question 79 of 181

In travelling roadways, dust samples shall be collected at intervals not exceeding:

1 month 2 months 3 months 6 months

Question 80 of 181

Dust samples from the roof and sides shall be collected to a maximum depth of:

2 mm 5 mm 10 mm 15 mm

Question 81 of 181

Dust samples from the floor shall be collected to a maximum depth of:

5 mm 8 mm 10 mm 15 mm

Question 82 of 181

Strip sampling shall use strips not less than:

5 cm wide 10 cm wide 15 cm wide 20 cm wide

Question 83 of 181

Strip sampling intervals shall not exceed:

2 m 3 m 5 m 10 m

Question 84 of 181

Dust samples shall be sent for analysis within:

3 days 5 days 7 days 14 days

Question 85 of 181

When workings approach within _____ of a goaf or disused workings likely to contain gas, advance boreholes shall be maintained.

15 m 30 m 45 m 60 m

Question 86 of 181

The advance borehole shall be at least:

1.0 m deep 1.2 m deep 1.5 m deep 2.0 m deep

Question 87 of 181

Protective embankments shall be at least _____ above the highest flood level.

0.6 m 1.0 m 1.2 m 1.5 m

Question 88 of 181

Danger levels shall normally be marked at least _____ below the highest flood level.

0.6 m 1.0 m 1.2 m 1.5 m

Question 89 of 181

No working shall be made vertically below any spot lying within _____ of either bank of a river or canal.

7.5 m 10 m 15 m 30 m

Question 90 of 181

During the rainy season, protective measures against surface water shall be examined at least once every:

7 days 10 days 14 days 30 days

Question 91 of 181

During the non-rainy season, such examinations shall be carried out at least once every:

14 days 21 days 30 days 60 days

Question 92 of 181

No working shall be extended within _____ of another waterlogged or potentially dangerous working unless statutory precautions are taken.

30 m 45 m 60 m 75 m

Question 93 of 181

The maximum height and width of such approaching workings shall be:

1.8 m 2.0 m 2.4 m 3.0 m

Question 94 of 181

Flank boreholes shall be maintained at intervals not exceeding:

2 m 3 m 5 m 10 m

Question 95 of 181

Plans and sections of such workings shall be updated at least once every:

7 days 15 days 30 days 60 days

Question 96 of 181

Before intentionally flooding any part of a mine, written notice shall be given at least:

7 days in advance 10 days in advance 14 days in advance 30 days in advance

Question 97 of 181

Before constructing a reservoir, water dam, or similar structure underground, written notice shall be given to the Regional Inspector at least:

7 days 10 days 14 days 30 days

Question 98 of 181

The minimum quantity of air required per person employed in a ventilating district on the largest shift is:

4 m³/min 5 m³/min 6 m³/min 8 m³/min

Question 99 of 181

The alternative minimum quantity of air required is:

1.5 m³/min per tonne of daily output 2.0 m³/min per tonne of daily output 2.5 m³/min per tonne of daily output 3.0 m³/min per tonne of daily output

Question 100 of 181

The minimum percentage of oxygen required at every workplace is:

18% 19% 20% 21%

Question 101 of 181

The maximum permissible percentage of carbon dioxide in mine air is:

0.25% 0.5% 0.75% 1.0%

Question 102 of 181

The maximum percentage of inflammable gas permitted in the general body of return air is:

0.5% 0.75% 1.0% 1.25%

Question 103 of 181

The maximum percentage of inflammable gas permitted at any place in the mine is:

0.75% 1.0% 1.25% 1.5%

Question 104 of 181

The wet bulb temperature at a working place shall not exceed:

30.5°C 31.5°C 32.5°C 33.5°C

Question 105 of 181

Where the wet bulb temperature exceeds 30.5°C, the minimum air velocity shall be:

0.5 m/s 0.75 m/s 1.0 m/s 1.5 m/s

Question 106 of 181

Air samples and temperature readings shall be taken at least once every:

7 days 14 days 30 days 90 days

Question 107 of 181

Every main mechanical ventilator shall be installed at least _____ from the shaft or incline opening.

5 m 10 m 15 m 20 m

Question 108 of 181

Prior notice of installing a mechanical ventilator shall be given to the Regional Inspector at least:

3 days 5 days 7 days 14 days

Question 109 of 181

A competent person shall examine every mechanical ventilator and booster fan at least once every:

Day Week Month Quarter

Question 110 of 181

In mines using mechanical ventilation, the quantity of air shall normally be measured once every:

7 days 14 days 30 days 90 days

Question 111 of 181

In non-fiery seams or first-degree gassy seams, air quantity measurement may be taken once every:

14 days 21 days 30 days 60 days

Question 112 of 181

Standing Orders relating to a newly installed mechanical ventilator shall be submitted within:

15 days 30 days 45 days 60 days

Question 113 of 181

Every ventilating district shall have _____ independent intake airways.

One Two Three Four

Question 114 of 181

One of the intake airways shall be used as:

Return airway Conveyor roadway Travelling roadway Pump roadway

Question 115 of 181

The minimum thickness of masonry around the frame of a ventilation door shall be:

15 cm 20 cm 25 cm 30 cm

Question 116 of 181

The minimum thickness of a masonry stopping between the main intake and main return airways shall be:

15 cm 20 cm 25 cm 30 cm

Question 117 of 181

If the stopping is constructed of reinforced concrete, the minimum thickness shall be:

10 cm 12 cm 15 cm 20 cm

Question 118 of 181

The minimum thickness of air-crossing partitions made of reinforced concrete shall be:

10 cm 12 cm 15 cm 25 cm

Question 119 of 181

In all degrees of gassiness, the minimum air velocity at the immediate outbye ventilation connection from the face shall be:

15 m/min 20 m/min 30 m/min 45 m/min

Question 120 of 181

In first and second degree seams, the minimum air velocity 4.5 m from the face shall be:

15 m/min 20 m/min 30 m/min 45 m/min

Question 121 of 181

In first and second degree seams, the minimum air velocity 7.5 m outbye of the discharge end of an air pipe shall be:

10 m/min 15 m/min 20 m/min 30 m/min

Question 122 of 181

In first and second degree seams, the minimum air velocity at the maximum span of a longwall face shall be:

30 m/min 45 m/min 60 m/min 75 m/min

Question 123 of 181

In third degree gassy seams, the minimum air velocity 4.5 m from the face shall be:

30 m/min 35 m/min 40 m/min 45 m/min

Question 124 of 181

In third degree gassy seams, the minimum air velocity 7.5 m outbye of the discharge end of an air pipe shall be:

15 m/min 20 m/min 25 m/min 30 m/min

Question 125 of 181

In third degree gassy seams, the minimum air velocity at the maximum span of a longwall face shall be:

60 m/min 65 m/min 70 m/min 75 m/min

Question 126 of 181

Fire-resistant sealant used as protection against fire around a fan shall extend for a distance of at least:

2 m 3 m 5 m 10 m

Question 127 of 181

In a Degree-I gassy mine, action is required when a methane detector indicates methane of:

0.05% or more 0.10% or more 0.50% or more 1.25% or more

Question 128 of 181

In a Degree-II gassy mine, methane is monitored when the methane detector indicates:

0.10% or more 0.25% or more 0.50% or more 1.25% or more

Question 129 of 181

In a Degree-III gassy mine, the flame safety lamp or methane detector indicates danger when inflammable gas reaches:

0.75% 1.00% 1.25% 2.00%

Question 130 of 181

When inflammable or noxious gas is detected in any place in a mine, the first action shall be:

Continue work carefully Increase production Withdraw all persons from the place Start drilling immediately

Question 131 of 181

After detection of inflammable or noxious gas, the affected place shall be:

Watered immediately Sealed permanently Fenced off to prevent accidental entry Used only by officials

Question 132 of 181

Where gas determination is made by air sample analysis, the samples shall be analysed within:

24 hours 48 hours 3 days 7 days

Question 133 of 181

Gas determinations or air sampling shall normally be carried out at least once every:

3 days 7 days 14 days 30 days

Question 134 of 181

If methane exceeds _____, gas determination shall be made at intervals not exceeding 24 hours.

0.5% 0.6% 0.8% 1.25%

Question 135 of 181

If methane has remained below _____ for the preceding 30 days, gas determination may be carried out once every 30 days.

0.4% 0.5% 0.6% 0.8%

Question 136 of 181

No working or gallery shall be extended more than _____ from the nearest ventilation connection unless adequate ventilation is provided.

1.5 m 2.0 m 3.0 m 5.0 m

Question 137 of 181

Ventilation shall be carried up to within 3 metres of the face by means of:

Wooden planks only Fire-resistant pipes, tubes, brattices, or similar material Plastic sheets only Steel rails only

Question 138 of 181

A narrow main or advance gallery shall not be driven more than _____ ahead of the widened gallery.

1.5 m 2.0 m 3.0 m 5.0 m

Question 139 of 181

Which of the following places belowground shall be effectively whitewashed?

Shaft inset and shaft bottom only Travelling roadways only Shaft inset, haulage landings, travelling roadways, and junctions Magazine only

Question 140 of 181

Whitewashing of haulage planes, sidings, pass-byes, and junctions is not required within _____ of the face.

25 m 50 m 75 m 100 m

Question 141 of 181

Electric lighting supplied from an external source may be used in intake airways and in other roadways not within _____ of the nearest face.

150 m 200 m 270 m 300 m

Question 142 of 181

Every safety lamp in use shall be thoroughly examined at least once every:

Day Week Month Three months

Question 143 of 181

Explosives used in mines, other than fuses and detonators, shall normally be issued in the form of:

Powder Loose explosive Cartridge Slurry mixture

Question 144 of 181

Which of the following explosives may be used in non-cartridge form in opencast mines?

Gelignite only Liquid oxygen explosives Site-mixed slurry/emulsion explosives or ANFO Dynamite only

Question 145 of 181

Explosive cartridges shall be used:

After opening the wrapper Only after mixing with water In the same form in which they are received After cutting into pieces

Question 146 of 181

Which explosive is prohibited in all mines?

Emulsion explosive ANFO Liquid oxygen explosive Slurry explosive

Question 147 of 181

In a Degree-II or Degree-III gassy seam, the maximum number of shots fired by a single-shot exploder shall be:

30 40 50 60

Question 148 of 181

In a Degree-II or Degree-III gassy seam, the maximum number of shots fired by a multi-shot exploder shall be:

60 70 80 100

Question 149 of 181

In non-gassy seams, the maximum number of shots fired by a single-shot exploder shall be:

40 50 60 80

Question 150 of 181

In opencast mines, the maximum number of shots fired by a multi-shot exploder shall be:

80 100 120 150

Question 151 of 181

A drill used for drilling shot-holes shall provide a clearance of at least _____ over the cartridge diameter.

0.1 cm 0.2 cm 0.3 cm 0.5 cm

Question 152 of 181

The insulated firing cable used by a shot-firer shall not be less than:

25 m 40 m 50 m 75 m

Question 153 of 181

In belowground workings, the firing cable shall be long enough to permit the shot-firer to take:

One right-angle turn Two right-angle turns of a pillar Three right-angle turns Shelter behind machinery only

Question 154 of 181

Before firing shots, warning shall be given over the entire danger zone having a radius of:

100 m 250 m 500 m 1000 m

Question 155 of 181

When two underground workings approach within _____ of each other, no shot shall be fired unless the other working is vacated and fenced.

5 m 7.5 m 9 m 15 m

Question 156 of 181

Before firing shots belowground, the place and all accessible roof and sides within _____ shall be treated against coal dust.

10 m 15 m 18 m 20 m

Question 157 of 181

Immediately before charging and again before firing, the shot-firer shall test for inflammable gas within a radius of:

10 m 15 m 18 m 25 m

Question 158 of 181

A shot-hole shall not be charged if:

It is more than 1 m deep A break is found in the hole or inflammable gas is issuing from it Water is present nearby The hole is horizontal

Question 159 of 181

After firing shots electrically, no person shall re-enter the place until at least _____ after the electricity source has been disconnected.

2 minutes 3 minutes 5 minutes 10 minutes

Question 160 of 181

Before closing, abandoning, or discontinuing methane extraction, the owner, agent, and manager shall give notice at least:

15 days 30 days 45 days 60 days

Question 161 of 181

Annual returns for the preceding year shall be submitted on or before:

1st January 31st January 1st February 31st March

Question 162 of 181

A drill machine shall not be used unless the minimum clear space below the roof or its support is:

0.2 m 0.3 m 0.5 m 0.6 m

Question 163 of 181

The minimum clear space required on the sides of a drill machine is:

0.3 m 0.5 m 0.6 m 1.0 m

Question 164 of 181

A coal barrier maintained between old boreholes and present workings where methane extraction is in progress shall not be less than:

60 m 100 m 150 m 200 m

Question 165 of 181

Protective footwear shall be supplied free of cost at intervals not exceeding:

3 months 6 months 1 year 2 years

Question 166 of 181

Safety helmets shall normally be supplied free of cost at intervals not exceeding:

1 year 2 years 3 years 5 years

Question 167 of 181

The manpower survey shall be carried out during:

Last week of every month First week of every month First week of every quarter Once every year

Question 168 of 181

The manpower sketch plan shall be signed and dated by the:

Surveyor Safety Officer Manager Overman

Question 169 of 181

A copy of the manpower distribution plan shall be kept with the:

Chief Inspector Surveyor Attendance Clerk Mine Foreman

Question 170 of 181

The site of a fatal or serious accident shall not be disturbed except:

To resume production immediately To improve ventilation only To rescue persons, remove bodies, prevent further accidents, or where work stoppage would seriously impede the mine At the request of any worker

Question 171 of 181

Before disturbing the site of a fatal or serious accident, a sketch shall be prepared in:

One copy Two copies Three copies Four copies

Question 172 of 181

The accident sketch shall be supported by:

Witness statements only Video recording only Photographs of the accident site Production records only

Question 173 of 181

Which of the following shall sign the accident sketch?

Manager or Assistant Manager Safety Officer Surveyor All of the above (along with the Workmen's Inspector or a workman if no inspector is available)

Question 174 of 181

On a mine plan, an Underground Coal Barrier is shown in:

Blue Green Red Black

Question 175 of 181

A Drift is shown in:

Blue Red Burnt Sienna (gradient in Black) Green

Question 176 of 181

A Dyke or other intrusion is represented by:

Red Blue Green Burnt Sienna

Question 177 of 181

Surface contour lines are shown in:

Blue Red Burnt Sienna Green

Question 178 of 181

Underground spot levels are shown in:

Green Blue Red Black

Question 179 of 181

Water dams are shown in:

Blue Green Red Burnt Sienna

Question 180 of 181

On mine plans, the direction of intake air current is shown in:

Red Green Blue Black

Question 181 of 181

The direction of return air current is shown in:

Blue Green Black Red

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