Metalliferous Mines Regulations, 1961

Interactive Study Guide (Chapters I-VIII)

Chapter I: Preliminary

This chapter defines the scope, application, and key terms used throughout the regulations.

Purpose of this Chapter

Think of this chapter as the foundation or introduction. It tells you which mines these rules apply to and defines the important words you'll see in the rest of the document. Getting these basics right is key to understanding everything else.

Regulation 1: Scope and Application

  • Official Name: The full name is "The Metalliferous Mines Regulations, 1961".
  • Who it applies to: These rules are for ALL mines in India EXCEPT coal mines and oil mines. This includes mines for iron ore, manganese, copper, gold, limestone, mica, etc.

Regulation 2: Key Definitions

Understanding these terms is crucial for exams. Here are some of the most important ones, explained simply:

  • "Act": Whenever you see "Act", it refers to the main law, the Mines Act, 1952. These regulations are rules made under that Act.
  • "Competent Person": This isn't just someone who is good at their job. It's a person who is at least 20 years old and has been formally appointed in writing by the Manager for a specific supervisory task. This makes them legally responsible.
  • "Manager": The official boss of the mine, appointed in writing. He's in charge of management, control, and direction of the mine.
  • "Official": A person appointed in writing by the owner, agent or manager to perform duties of supervision. Includes the Manager, Assistant Manager, Foreman, Mate etc.
  • "Face": The moving front where the actual mining (digging, drilling, blasting) is happening. For example, the in-bye end of a tunnel being driven.
  • "Shaft": A vertical or inclined tunnel or opening that connects the surface to the underground workings, or connects different levels underground. It's like an elevator shaft for the mine.
  • "Blaster": A certified person appointed in writing by the manager to handle and fire explosives.
  • "Misfire": When a charge of explosive in a shothole fails to explode. This is a very dangerous situation.

Exam One-Liners

  • MMR 1961 applies to all mines except coal and oil mines.
  • A "Competent Person" must be at least 20 years old and appointed in writing.
  • "Act" refers to the Mines Act, 1952.
  • "Shaft" is a vertical or inclined way to underground workings.

Chapter Quiz

1. The Metalliferous Mines Regulations, 1961, apply to which of the following?

2. Under MMR 1961, what is the minimum age for a person to be appointed as a 'competent person'?

3. In the regulations, the term 'Act' refers to which specific Act?

4. What is the definition of a 'face' in a mine?

5. Who is a 'blaster' according to the regulations?

6. What does the term 'misfire' signify?

7. A 'shaft' is defined as a vertical or inclined way or opening. What is its purpose?

8. Who is an 'Official' under these regulations?

9. An 'auxiliary fan' is used primarily for what purpose?

10. What does the term 'landing' refer to in a mine?

11. Which of these is NOT covered under the definition of 'machinery'?

12. A 'mine foreman' is a person appointed in writing and possesses which certificate?

13. What is a 'socket' in the context of blasting?

14. The term 'tub' includes all of the following EXCEPT:

15. A 'ventilating district' has an independent intake airway commencing from where?

16. Who is an 'Assistant Manager'?

17. What are 'approved safety lamp' and 'approved electric torch'?

18. A 'public road' is defined as a road under the jurisdiction of:

19. Which document forms the basis for the Metalliferous Mines Regulations, 1961?

20. What is a 'Winze' or 'Raise'?

Chapter II: Returns, Notices and Records

This chapter outlines the mandatory reporting procedures for mine operations.

Purpose of this Chapter

This chapter is all about communication and record-keeping. It ensures that the mining authorities (like the DGMS) are always kept informed about what's happening at the mine, from its opening to its closing, and especially when accidents occur. Proper documentation is a legal requirement and helps in analyzing safety trends.

Key Reporting Requirements:

  • Notice of Opening (Reg. 3): Before a new mine starts or an old one re-opens, the owner must inform the authorities using Form I. This is like getting a birth certificate for the mine.
  • Quarterly Returns (Reg. 4): Every three months, the mine has to submit a report (Form II) with details on machinery, output, and manpower. The deadline is the 20th of January, April, July, and October for the previous quarter.
  • Annual Returns (Reg. 5): A yearly summary (Form III) of employment, machinery, output, explosives used etc., must be sent by the 20th of February of the following year.
  • Notice of Abandonment/Discontinuance (Reg. 6): If a mine is going to be closed permanently or stopped for more than 4 months, a 30-day advance notice must be given. This is to ensure safety measures are in place before leaving the mine dormant.
  • Notice of Accident (Reg. 9): This is one of the most critical regulations. In case of a fatal accident, serious bodily injury, or a dangerous occurrence (like an explosion, fire, or collapse), the manager must:
    1. Inform the Regional Inspector immediately (forthwith) by the fastest means (phone, telegram).
    2. Send a detailed written notice (Form IV-A) within 24 hours to the Chief Inspector, Regional Inspector, and District Magistrate. A copy must also be posted on the mine's notice board.
  • Notice of Disease (Reg. 10): If a worker contracts a notified occupational disease (like Silicosis or Asbestosis), a notice (Form V) must be sent to authorities within 3 days of being informed.

Exam One-Liners

  • Accident Notice (Form IV-A) must be sent within 24 hours.
  • Annual Returns deadline is February 20th.
  • Quarterly Returns are due on the 20th of Jan, Apr, Jul, Oct.
  • Notice of Abandonment requires 30 days advance notice.
  • Notice of Occupational Disease must be sent within 3 days.

Chapter Quiz

1. What is the deadline for submitting Annual Returns (Form III)?

2. Within how many hours must a notice of a fatal accident (Form IV-A) be given?

3. If a mine is to be abandoned, what is the minimum advance notice period required to be given to the Chief Inspector?

4. What form is used for giving notice of opening a new mine?

5. Quarterly returns are required to be submitted on or before the 20th day of which months?

6. If a serious injury later results in death, a notice must be given within how long of being informed of the death?

7. A notice of an occupational disease (Form V) must be sent to all of the following EXCEPT:

8. When the ownership of a mine is transferred, who is responsible for handing over all plans and records to the new owner?

9. If a mine's working is discontinued for more than 4 months, a notice must be given within how many days of the expiry of the 4-month period?

10. Which of the following is considered a 'dangerous occurrence' requiring an immediate notice under Regulation 9?

11. When a new manager is appointed, a notice must be sent to the Chief Inspector within:

12. The notice of opening a mine must be accompanied by what?

13. Particulars of an injured person in Form IV-B must be sent to the Chief Inspector within how many days of the occurrence?

14. When it is intended to reopen a mine after discontinuance for more than four months, what is the minimum advance notice required?

15. If a change occurs in the name of a mine, notice must be given within:

16. Besides telephonic/telegraphic intimation, what else must a manager do immediately after a serious accident?

17. Annual returns have to be submitted to the District Magistrate and who else?

18. If an injury which was not serious later becomes serious, what action is required?

19. In case of an electrical accident causing serious bodily injury, who must be informed 'forthwith' in addition to the regular authorities?

20. If a mine is abandoned, the final returns must be submitted within how many days?

Chapter III: Examinations & Certificates

Details the constitution of the Board of Mining Examinations and the types of certificates required for various roles.

Purpose of this Chapter

This chapter acts as the "licensing department" for key mining personnel. It ensures that people in responsible positions have proven their knowledge and competence through formal examinations. You can't just be appointed to a critical role; you have to earn the certificate for it. This maintains a high standard of safety and technical skill in the industry.

Regulation 11: Board of Mining Examinations

This is the official body responsible for conducting exams and issuing certificates.

  • Composition: It is headed by the Chief Inspector of Mines as the Chairman, along with five other technical members from the industry and academia.
  • Function: To set exam standards, conduct examinations, and grant certificates of competency.

Regulation 12: Types of Certificates

These are the various "licenses" one can get. Remember these for your exam:

  • Manager's Certificate (First & Second Class): For managing a mine. The class required depends on the size and complexity of the mine.
  • Surveyor's Certificate: To carry out mine surveys and prepare official plans.
  • Foreman's Certificate: A supervisory role, below the Manager but above the Mate.
  • Mate's Certificate: For direct supervision of a section of the mine.
  • Winding Engineman's Certificate (I & II Class): To operate the winding engine (the mine's elevator).
  • Blaster's Certificate: To conduct blasting operations.
  • Gas-testing Certificate: To test for the presence of inflammable gas, mandatory in gassy mines.

Regulations 15 & 16: Qualifications & Experience

  • Minimum Age: A candidate for any exam must be at least 20 years old.
  • First-Aid Certificate: Almost all certificates require a valid first-aid certificate. Safety first!
  • Practical Experience: This is a major component. For example, to appear for a Second Class Manager's exam, a candidate needs at least 3 years of practical experience, which can be reduced to 2 years if they have a degree/diploma in mining.

Exam One-Liners

  • The Board of Mining Examinations is chaired by the Chief Inspector of Mines.
  • Minimum age to appear for any competency exam is 20 years.
  • A valid First-Aid Certificate is mandatory for most exams.
  • Certificates can be restricted to opencast mines only.

Chapter Quiz

1. Who is the ex-officio Chairman of the Board of Mining Examinations?

2. What is the minimum age for a candidate to be admitted to any examination held by the Board?

3. Which of the following certificates is NOT listed as a type granted by the Board under Regulation 12?

4. What is a mandatory prerequisite for a candidate appearing for a Manager's or Surveyor's certificate examination?

5. For a candidate with a degree in mining engineering, the practical experience required for a Second Class Manager's certificate is reduced to:

6. A certificate granted by the Board can be restricted to what type of workings?

7. How many members, besides the Chairman, constitute the Board of Mining Examinations?

8. If a person loses their certificate, can they get a duplicate?

9. Who conducts the examinations for the certificates of competency?

10. For a candidate applying for a Surveyor's examination, what is the required period of practical experience?

11. The holder of a Foreman's certificate, when employed in a mine, must deliver his certificate to whom?

12. What is an 'Exchange Certificate'?

13. A candidate for a First Class Manager's certificate with a degree in Civil Engineering would have their required practical experience reduced from 5 years to:

14. The validity of a Foreman's certificate is for five years, but it needs an endorsement from whom to remain valid?

15. What is the fee for a duplicate Manager's or Surveyor's Certificate?

16. A candidate for a Blaster's Certificate must have practical experience of at least:

17. Who has the power to suspend the certificate of a Foreman or Mate for up to three months after an enquiry?

18. A 'Service Certificate' could be granted without a written examination based on:

19. A medical certificate submitted with an application for examination must not be more than how old?

20. To appear for a I Class Engine Driver's Certificate exam, what must a candidate already hold?

Chapter IV: Inspectors & Mine Officials

Details the roles, qualifications, and appointment of mine officials.

Purpose of this Chapter

This chapter defines the command structure of a mine. It specifies who can be appointed to key roles and what qualifications they must have. This ensures that every mine is managed and supervised by qualified and legally appointed individuals, creating clear lines of responsibility for safety.

Regulation 34: Qualifications and Appointment of Managers

  • Mandatory Appointment: No mine can operate without a duly qualified and appointed Manager. They must be at least 23 years old.
  • Qualification Tiers: The type of Manager's Certificate required depends on the mine's size (average number of employees).
    • Large Mines (>150 people underground or >400 total): Require a First Class Manager's Certificate.
    • Medium Mines: Can be managed by someone with a First or Second Class Certificate.
    • Small Mines: Can be managed with a Manager's Permit, granted by the Chief Inspector.
  • One Manager, One Mine: A manager cannot be in charge of more than one mine without written permission from the Chief Inspector. This is to ensure they can provide daily personal supervision.

Regulation 36: Appointment of Engineers

  • When is an Engineer needed? An engineer (or other competent person) must be appointed at every mine where machinery is used.
  • Responsibility: The engineer is in charge of the installation, maintenance, and safe working of all machinery.

Regulation 38: Appointment of Surveyors

  • When is a Surveyor needed? A qualified surveyor must be appointed at every mine with workings belowground.
  • Responsibility: The surveyor is responsible for carrying out surveys and preparing the accurate plans and sections required by law.

Regulation 39: Appointment of Competent Persons

The manager must appoint a sufficient number of competent persons (officials, technicians) to ensure adequate supervision and inspection on every shift.

Exam One-Liners

  • Every mine MUST have a Manager. Minimum age for a Manager is 23 years.
  • Large mines (>150 UG employees) require a First Class Manager.
  • An Engineer is required if any machinery is used.
  • A Surveyor is required for all underground mines.

Chapter Quiz

1. What is the minimum age for a person to be appointed as a manager of a mine?

2. A mine with an average employment of 200 persons in workings belowground requires a manager holding at least which certificate?

3. Under what condition must an engineer or other competent person be appointed at a mine?

4. A qualified surveyor must be appointed at every mine that has what specific feature?

5. Can a manager be in charge of more than one mine?

6. Who is responsible for the proper installation, maintenance, and safe working of machinery at a mine?

7. If the manager is temporarily absent, he can authorize a person to act in his place. This authorization shall not exceed 30 days without the consent of whom?

8. What is the minimum age for a person to be appointed as a surveyor?

9. A First Class Manager's Certificate is required for a mine where the total employment (opencast + underground) is in excess of:

10. The manager must provide suitable residential accommodation for himself and the assistant manager within what distance from the mine openings?

11. What must the manager do on taking over charge of a mine regarding already appointed competent persons?

12. Can a surveyor be appointed in any other capacity in the same mine?

13. A Manager's Permit, for managing small mines, can be granted by the Chief Inspector to a person holding which certificate?

14. Who is responsible for providing for the safety and proper discipline of persons employed in the mine?

15. If the Regional Inspector finds the number of appointed competent persons to be inadequate, what can he do?

16. For a mine with 100 persons working belowground, what is the minimum qualification for the manager?

17. Notice of appointment of a new engineer must be sent to the Regional Inspector within:

18. A manager must give a notice of at least how many days before vacating his office?

19. To whom is the manager directly answerable?

20. At every mine, one or more overmen (Foremen) must be appointed to hold charge of different districts on each:

Chapter V: Duties & Responsibilities

Details the specific duties of all mine personnel.

Purpose of this Chapter

This is one of the most important chapters for practical safety. It clearly lays out the legal duties for everyone, from the manager down to the individual worker. The principle is that safety is a shared responsibility, and this chapter defines who is responsible for what.

Regulation 41: Duties of Persons Employed in Mines (The Worker)

  • Obey Rules: Every person must strictly follow the Mines Act, Regulations, and any safety orders given by the manager or officials.
  • Don't Obstruct: No one should interfere with another person doing their job or prevent them from following safety rules.
  • Record Attendance: Everyone must have their name recorded in the register before starting and after finishing their shift.
  • No Unauthorised Entry: Do not cross any fence or danger signal, and only travel on designated roadways.
  • Report Injuries: Any injury, no matter how small, must be reported to an official as soon as possible.
  • No Sleeping on Duty.

Regulation 44: Duties and Responsibilities of Managers

  • Daily Supervision: The manager must exercise daily personal supervision. This includes visiting underground workings at least four days a week.
  • Provide Materials: Ensure a sufficient supply of proper materials and safety appliances (like timber for support, PPE, etc.) is always available.
  • Assign Duties: Assign specific duties to all competent persons and ensure they understand the rules.
  • Examine Records: The manager must examine and countersign all reports, registers, and records.
  • Investigate Accidents: Personally inspect the site of any fatal or serious accident and conduct an inquiry.

Regulation 47: Duties of Mining Mates

  • Pre-Shift Inspection: The mate must inspect their assigned district within two hours before the start of the shift to check for gas, roof/side conditions, and general safety. This is a critical check before workers enter.
  • Ensure Safety: They are responsible for ensuring travelling roadways and working places are secure. They must withdraw people from any dangerous place.
  • Fencing: They must ensure that any unused part of the mine is properly fenced off to prevent accidental entry.
  • Reporting: Report any dangers or deficiencies (like a shortage of timber) to their superior official.

Exam One-Liners

  • The Manager must inspect underground workings at least 4 days a week.
  • The Mining Mate must conduct a pre-shift inspection within 2 hours before the shift begins.
  • Every worker has a duty to report any injury to an official immediately.
  • The Manager is responsible for providing all necessary safety materials and appliances.

Chapter Quiz

1. How frequently must a Manager visit and examine the workings belowground?

2. Within how many hours before the commencement of a shift must a Mining Mate inspect his district?

3. If a worker receives an injury, what is his immediate duty?

4. Who is responsible for ensuring a sufficient supply of proper materials and appliances for safety?

5. What is the primary duty of a competent person in charge of a safety lamp-room?

6. Who is responsible for the accuracy of any mine plan or section that has been prepared and signed by him?

7. If a Mining Mate finds a dangerous place, and the danger cannot be removed forthwith, what must he do?

8. A winding engineman must NOT leave his engine while persons are at work in the shaft or at the end of his shift until:

9. What is the duty of every person before commencing work in their working place?

10. Who is responsible for seeing that all tracks and tramlines are properly laid, graded, and ballasted?

11. What must a blaster do with surplus explosives at the end of his shift?

12. How often must the engineer or other competent person examine the external parts of the winding engine and guides?

13. If a person finds himself in the presence of inflammable gas with a flame safety lamp, what should he NOT do?

14. Who has the power to send a person out of the mine for infringing safety rules in his district?

15. What record must a Manager maintain in a bound paged book?

16. Who is responsible for ensuring that no inexperienced person is employed on any work except under supervision?

17. What is the duty of the banksman after persons have entered the cage?

18. If a competent person deputes another person to perform his work without sanction, he is:

19. Who is responsible for investigating a fatal accident and recording the findings in a book?

20. The engineer is responsible for the examination of all machinery and plant reports and must:

Chapter VI: Plans & Sections

Details the requirements for mine plans and sections.

Purpose of this Chapter

This chapter emphasizes that you can't mine safely without accurate maps. It mandates the types of plans and sections (technical drawings) that every mine must maintain. These plans are crucial for safe operations, planning, and rescue efforts in an emergency.

Regulation 60: General Requirements for Plans

  • Accuracy is Key: Plans must be accurate and drawn to a specific scale (e.g., 1:1000 or 1:2000 are common).
  • Essential Information: Every plan must show the mine's name, the true north, and a scale. Standard symbols (conventions) must be used.
  • Up-to-Date: Plans must be updated at least once every three months for underground mines and every 12 months for opencast mines. Before a mine is abandoned, the plans must be brought fully up-to-date.

Regulation 61: Types of Plans to be Maintained

Mines are required to keep several types of plans. The most important ones are:

  • Surface Plan: Shows all surface features like buildings, rivers, roads, railway lines, and mine openings within the leasehold boundary.
  • Underground Plan: The main map of the underground workings. It shows every tunnel, shaft, pillar, and also important surface features that are above the workings (within 200m).
  • Ventilation Plan: Shows the entire ventilation system: the direction of air currents, positions of fans, doors, stoppings, and fire-fighting equipment. It's the "breathing map" of the mine.
  • Water-Danger Plan: Critically important for preventing inundation. It shows all sources of water (rivers, lakes, waterlogged old workings) lying within 60 metres of any part of the workings, and also shows surface contour lines.

Regulation 63: Plans after Abandonment

When a mine is closed down, the owner has a final responsibility:

  • Within 30 days of abandonment, they must submit two final, up-to-date copies of the plans to the Chief Inspector.
  • This is crucial for the safety of any future mining in adjacent areas, to prevent accidental connections to the old, possibly waterlogged or gassy, workings.

Exam One-Liners

  • Underground plans must be updated every 3 months.
  • Water-Danger Plan shows hazardous water bodies within 60 metres of workings.
  • Final plans must be submitted within 30 days of mine abandonment.
  • The Surveyor is responsible for the accuracy of the plans they prepare.

Chapter Quiz

1. How frequently must plans of underground workings be maintained up-to-date?

2. A Water-Danger plan must show waterlogged workings that lie within what distance of any part of the mine workings?

3. After a mine is abandoned, within how many days must the final, up-to-date plans be submitted to the Chief Inspector?

4. Who is legally responsible for the accuracy of a plan that he has prepared and signed?

5. What is the required update frequency for plans of opencast workings?

6. Which of the following is NOT a mandatory type of plan to be kept at a mine with underground workings?

7. A Ventilation Plan must show all of the following EXCEPT:

8. Who has the authority to require a fresh survey and a new plan if the existing one is found to be inaccurate?

9. An underground plan must show important surface features if they are within what distance of the workings?

10. What must be done with plans before starting any extraction or reduction of pillars?

11. The responsibility for providing accurate survey instruments lies with whom?

12. A water-danger plan must show surface contour lines at vertical intervals not exceeding:

13. Where must all field books and other notes used in the preparation of plans be kept?

14. If a mine is discontinued for a period exceeding four months, when must the plans be submitted?

15. Every plan or section must show the true north or what alternative reference?

16. Who must countersign and date a plan every time it is brought up-to-date?

17. What should be done if workings of two different reefs or lodes are less than 10 metres apart?

18. What is the purpose of submitting final plans after abandonment?

19. A key plan is required under which circumstances?

20. Who can supply copies of an abandoned mine plan to the owner of an adjacent mine?

Chapter VII: Means of Access and Egress

Ensures safe access and exit from the mine.

Purpose of this Chapter

This chapter is about one of the most fundamental rules of underground safety: always have more than one way out. It ensures that workers are never trapped in an emergency.

Regulation 68: The Two Outlets Rule

This is a core principle you must remember.

  • Minimum of Two: No person can be employed underground unless the mine has at least two separate outlets to the surface.
  • Why two? If one outlet is blocked by a fire, flood, or collapse, the other provides an escape route.
  • Separation: The outlets must be at least 15 metres apart from each other at all points. This prevents a single incident from blocking both exits.
  • Connection: The two outlets must be connected by a walkable passage underground (at least 1.8m high and 1.5m wide).
  • Winding System: If a shaft is vertical and deeper than 60 metres, it must be equipped with a mechanical winder (a mine elevator or hoist) that is always available for use.

Exceptions to the Rule

The two-outlet rule doesn't apply in a few specific, temporary situations like during shaft sinking or when making a connection, as long as not more than 20 persons are employed.

Regulation 72: Periodic Examination

  • All shafts, inclines, and outlets must be thoroughly examined by a competent person at least once every seven days.
  • A report of this examination must be recorded in a book. This ensures continuous monitoring of the safety of all escape routes.

Exam One-Liners

  • Minimum two outlets to the surface are required for all underground workings.
  • Outlets must be at least 15 metres apart.
  • A mechanical winder is mandatory for vertical shafts deeper than 60 metres.
  • A weekly inspection of all outlets is mandatory.

Chapter Quiz

1. What is the minimum number of separate outlets to the surface required for any underground working?

2. What is the minimum distance that must be maintained between the two outlets at any point?

3. A mechanical winding engine is mandatory in a vertical shaft if its depth exceeds:

4. How frequently must all shafts, inclines, and other outlets be examined?

5. What are the minimum dimensions of the walkable passage connecting the two outlets?

6. During shaft sinking or making a connection, the two-outlet rule may be exempted if the number of persons employed belowground does not exceed:

7. If the connection between two outlets becomes obstructed, who is allowed to be employed underground?

8. Every walkable entrance to the workings belowground must be provided with a substantial gate. When should this gate be kept closed and locked?

9. Who is authorised to grant an exemption from the two-outlet rule if special difficulties exist?

10. The report of the weekly examination of outlets must be recorded in:

11. What is the primary purpose of having two outlets?

12. The permanent lining in a sinking shaft must be kept within what distance from the bottom of the shaft?

13. What must be done if an outlet is found to be unsafe during an examination?

14. Who must have sole control over the two outlets of a mine?

15. Every entrance to a mine from the surface must be kept:

16. The weekly examination of outlets is conducted by a mine foreman or:

17. If an unwalkable single shaft over 30m is used during development, it must be provided with ladders and what else?

18. In case of any doubt about whether a winding arrangement in a shaft is 'suitable' or not, the matter shall be referred for decision to:

19. The two outlets must be connected by a walkable passage through which part of the mine?

20. What must be kept clear at the top, all insets, and bottom of every working shaft?

Chapter VIII: Ladders & Ladderways

Details the construction and use of ladders.

Purpose of this Chapter

Ladders are a basic but critical piece of equipment for moving between levels in a mine, especially in shafts and steep workings. This chapter sets strict rules for their construction and installation to prevent falls.

Regulation 73 & 74: Ladder Requirements

  • Strong and Secure: Ladders must be of strong construction and securely fixed in place.
  • Angle of Inclination: The ladder must not be fixed at an angle of more than 80 degrees from the horizontal. This prevents it from being too steep and unsafe to climb.
  • Extension: Ladders must extend at least 1 metre above the platform or shaft opening to provide a safe handhold when getting on or off.
  • Rungs: The rungs (steps) must be equally spaced and have enough distance from the wall to ensure a proper foothold.
  • Maintenance: All ladders must be kept in good repair.

Regulation 75: Platforms or Sollars

Climbing long, continuous ladders is tiring and dangerous. To solve this, platforms are required.

  • If a ladderway is inclined more than 60 degrees, a platform (sollar) must be provided at intervals of no more than 10 metres.
  • For ladders between 30-60 degrees, the interval can be up to 15 metres.
  • These platforms provide a place to rest and also break a potential fall, significantly improving safety.

Regulation 77: Carrying Materials

  • You cannot carry loose materials, tools, or explosives in your hands while climbing a steep ladder (inclined more than 45 degrees).
  • If you need to carry such items, they must be in a suitable sling or container securely attached to your body. This keeps your hands free for climbing.

Exam One-Liners

  • Maximum ladder inclination is 80 degrees from horizontal.
  • Ladders must extend 1 metre above landing platforms.
  • For ladders steeper than 60 degrees, platforms are required every 10 metres.
  • Do not carry loose materials by hand on ladders; use a secured sling or container.

Chapter Quiz

1. What is the maximum permissible angle of inclination for a ladder fixed in a shaft, from the horizontal?

2. Every ladder must project at least what distance above the mouth of the shaft or every platform?

3. In a ladderway with an inclination of more than 60 degrees, platforms or sollars must be provided at intervals not exceeding:

4. How should a person carry a drill on a ladderway with an inclination of 50 degrees?

5. For a ladderway with an inclination of 45 degrees, what is the maximum interval between platforms?

6. What is a mandatory requirement for the rungs of a ladder?

7. If a ladderway is located in a shaft used for winding, what precaution is necessary?

8. A ladderway must be provided in every shaft or winze if its inclination from the horizontal exceeds:

9. From which of the following materials can a ladder be constructed, according to the regulations?

10. In a sinking shaft, a chain or rope ladder shall be provided from the bottom of the permanent ladderway to the shaft bottom, covering a distance not exceeding:

11. The regulations concerning ladders and ladderways are primarily aimed at preventing what type of accident?

12. What should be the condition of every ladder used in a mine?

13. Carrying loose material by hand is prohibited on a ladderway when its inclination from the horizontal is more than:

14. What is the purpose of extending a ladder 1m above a landing?

15. If a manhole is provided at a platform in a shaft, where should it be placed?

16. Which of these is NOT a direct requirement for a ladder under Regulation 74?

17. Who is permitted to carry a drill by hand on a ladder inclined at 60 degrees?

18. An opening in a platform for handling materials must be:

19. What should be done if a ladder rung is found to be broken?

20. The requirement for platforms at 10m intervals applies when the ladderway inclination is: