Mine Safety DAO 2000-98 Practice Test

These questions are part of the practice quiz. Start practicing

• What is the maximum permissible exposure to noise in the mine?
• What term describes a mine working or excavation other than underground?
• A blaster shall be duly registered and currently licensed as which professional?
• What kind of lighting shall be provided in areas where ground conditions must be assessed beyond the cap lamp’s range?
• Registration of Safety Inspector requires the minimum experience sequence described as a) 1 year safety work or 2 years mining operation; b) 2 years safety work or 3 years mining operation; c) 4 years safety work or 5 years mining operation. Which option lists the exact sequence of numbers used for these blanks?
• For excavations over two meters in depth, how many ladders are required per three meters of depth?
• Which body is responsible for monitoring and regulating safety and health practices of employers?
• Where are blasting caps, connectors and delay connectors stored?
• When the conveyance is ready to move, how many bell signals are given to the hoist operator, and how many times must he acknowledge by returning the same signal?
• All ladders shall be installed so far as practicable at an angle not greater than ______________ from the horizontal and shall have substantial and adequate landing platform for every __________ vertical distance from each other.
• Which term describes a facility that produces electric energy?
• What is the purpose of an escape shelter along the haulage-way?
• A Contractor is defined as ___.
• For Class D mine, its safety unit shall be headed by a which role?
• Which term describes an accident that results in the death of the injured person?
• How many whistle blows are required to stop a moving train or to start it forward?
• What is the daily fine for the second offense in the after-one-month category?
• Which two devices must be fitted for high-speed hoisting operations?
• Magazines surroundings must be kept clear of which type of materials for the stated distance?
• In a compressed air system, what must be true about the end-of-pipe valve?
• The minimum number of fully trained men required in a Mine Rescue Team is?
• Which safety element must be conspicuously posted along with the required sign whenever men are at work in the shaft?
• Which term measures the days lost per million manhours worked?
• Class A mines and service contractors shall have at least which positions?
• How frequently must the Central Safety and Health Committee hold meetings?
• Which term refers to a household or industrial fuel that is byproduct of refining petroleum or natural gas and is liquefied by compression?
• Which class applies to mines employing not less than 150 underground and 250 surface personnel?
• What is the daily fine for the first offense of late submission of monthly accident reports or Safety and Health Program?
• What activity must be performed at least once per shift in large Class A mines?
• Drilling shall not be done in or within what distance of old holes or bootlegs?
• Depth is measured along which feature when determining ventilation requirements in mines?
• What action is restricted within 16 meters of the main shaft?
• If there is a misfire, what is the recommended action regarding drilling near bootlegs?
• What document describes the identity of a substance including product information, composition information on ingredients, hazard identification and control and clean-up procedures in cases of accidental spill?
• Where are ammonium nitrate and slurry stored?
• Lost-Time Accident refers to accidents that will prevent the injured from reporting to work on the working day following the day of injury and thereafter. Which term is this?
• Penalty for failure to submit/report fatal and serious accidents to concerned RO within 15 days after the date of the accident.
• What term describes a person allotted at least four hours per week to perform the duties of a safety engineer and who holds a safety engineer's permit issued by the Regional Office?
• When the roof of the mine working is broken or fractured, what minimum back or thickness is required?
• The Blasting Area is defined as ___.
• After any substantial change to the primary ventilation circuits and volume flows, at what interval must a ventilation engineer determine and record the quantity and quality of ventilating air?
• New rope shall be long enough to permit cutting of the end at least how many times?
• Within how many days must the detailed accident report be submitted after knowledge of the accident?
• Dose Limits refer to the amount of exposure to radiation in excess of ALARA or CPR Part 3 limits. Which term is described?
• Which committee includes labor, union representatives and service contractors, holds monthly meetings, and submits minutes to the Director with copy to the Regional Director?
• Regular monitoring of coal temperature at stockpile shall be carried out at points not more than _____________ apart, giving special attention to the corners of the stockpile.
• Which committee is responsible for maintaining continuous regular monthly meetings and submitting the minutes to the Director and Regional Director?
• Fleet angle shall not exceed how many degrees?
• Which term refers to injuries that will not prevent the injured person from reporting to his designated work on the working day following the day of injury and thereafter?
• Under two-shift operations, blasting of mat in top-slice stopes may be done at the end of the shift if which condition is met?
• A mine rescue team shall maintain a minimum of how many fully trained men?
• For the penalty category of submission after one month from the prescribed reporting period, what is the basic fine for the first offense?
• The designation of a Deputy Safety Inspector shall be reported to the Regional Office by whom?
• Which term describes an injury that does not result in death or permanent disability but which results in disability from work for a day or more?
• Which term describes any equipment which produces, modifies, regulates or safeguards the supply of electric energy?
• A Blaster is defined as ___.
• Fuses shall not be stored underground longer than how many hours unless the storage place is safe and dry?
• Class C mines and service contractors shall have at least which combination of safety personnel?
• Which term designates a person who directs and controls workers on the job site on behalf of the employer?
• Who is primarily responsible for the formulation and effective implementation of the company's safety and health program and enforcement of these rules and regulations?
• A Central Safety and Health Committee must be established within ______ from the start of operation.
• What term pertains to machines, foundry, electrical, fabrication, repair, carpentry and overhauling shops; motorpool; and other similar shops?
• During misfire cleanup, what is the procedure for misfired holes that involves both washing with water and primer placement?
• What is the penalty for any violation of provisions not mentioned in the DAO 2000-98?
• No drilling shall be done within what distance from a misfired charge?
• New underground employees with no underground mining experience shall receive no less than how many hours of training?
• Explosives shall be piled and issued on a ______ basis.
• Walkways shall be properly secured when inclined to a grade of?
• The permit for registering safety personnel is issued by which office?
• Who shall notify the Regional Director prior to decommissioning?
• Prime cartridges shall be exploded or utilized within how long after these are prepared?
• What is the term for an approved steel container used to store explosives for a short period of time?
• For larger rounds, which method should be used instead of lighting each hole individually?
• The weight threshold that differentiates permanent magazines from portable magazines is what?
• Which magazine stores a small or moderate quantity of explosive?
• In the after-one-month category, what is the basic fine for the third offense?
• A ladder shall extend at least how many centimeters from the trench bottom to ground level?
• What term describes chemicals used in dissolving minerals/metals in ore processing?
• In an emergency when the ventilating current is reversed, how should doors that affect ventilation be maintained?
• To move the train away from the signal source using light, which motion should be used?
• Which term is used to describe the device family including ordinary electric and non-electric blasting caps, exploders, primers and detonators?
• What temperature would classify a material as Hot Material?
• For Class D mines, the head of the safety unit shall be which role?
• The minimum period for orientation of newly hired employees, conducted as lectures and/or actual observation, is at least ______.
• Width of a permanent two-lane haulage road shall not be less than how many times the width of the widest hauling truck?
• The minimum fresh air supply per worker at maximum staffing is what?
• Which whistle pattern is used to move the train backward?
• Under the definition of Inhabited Building, which activity would cause a building to be exempt from being considered an inhabited building?
• Every stope and development opening shall be provided with at least one ______ of appropriate length and diameter, properly pointed or sharpened.
• The minutes of the Central Safety and Health Committee meetings shall be submitted to which officials?
• The 25-meter back thickness rule applies under which type of rock?
• What term is defined as the ratio obtained by dividing the rope's breaking strength by the sum of the maximum load to be hoisted, the weight of the rope, and bending and acceleration stresses?
• Oxygen concentration in the air space shall not be more than __________ free oxygen by volume to prevent coal dust explosion.
• Active underground areas that cannot be supplied through natural/mechanical ventilation require an airline with how many air valves at the entrance and the end of the pipe?
• Boreholes ahead of a water pocket must be drilled at least how many meters ahead of the face?
• To which authority must fatal and serious accident reports be submitted within 15 days?
• Which term refers to an undesired event in which exposure or movement of a person to objects or conditions may cause personal injury or property damage?
• Which document includes hazard identification and cleanup procedures for chemical substances?
• When advancing toward a suspected water pocket, boreholes must be drilled at least eight meters ahead of a face in which direction?
• A maximum of how many days' supply of explosives may be stored in an issuing magazine?
• Registration of Temporary Safety Engineers requires at least which experience and training hours?
• Which parameter must be monitored at all points in cyanide leaching operations?
• For Class C, what are the maximum numbers of underground and surface workers?
• The safety and health office must be independent from other offices and be under the direct and immediate control of which person?
• Penalty for failure of the company to install corrective measures to mitigate unsafe condition as defined in the annual safety and health program.
• Where are dynamite, detonating cord and primer stored?
• Magazine designed to accommodate fifty kilograms or more of explosives shall be of which construction?
• Designated dumping area shall be elevated at least what percent towards the crest?
• Registration of Safety Engineers requires which minimum experience and training hours?
• Which type of cable shall be used for hoisting purposes in drilling operations?
• The monthly employers' report must be copied to which agency?
• Which term refers to a health professional duly licensed to practice in the Philippines and possessing DOH qualifications?
• All neighboring mines shall organize which program?
• New hire orientation should be conducted in the form of lecture and/or actual observation of the work area where they will be assigned.
• Which light motion is used to move a train toward the signal source?
• The third offense under the after-one-month category carries the highest basic fine among all listed penalties.
• What is the basic fine for the second offense of late submission of monthly accident reports or Safety and Health Program?
• How many whistle blows are required to move the train forward slowly?
• Which term is used for a mining area that is not underground?
• When signaling with light to move the train toward the signal source, which light motion should be used?
• For rope lengths over 915 meters, the maximum safe working load shall not exceed what fraction of the breaking load?
• Underground magazines shall not be located within how many meters from workplaces?
• What is the maximum permissible slip (in centimeters) of the winding drum when the conveyance is loaded to the maximum weight of persons?
• All employees shall receive no less than how many hours of refresher training, not less frequent than once every twelve months?
• The spare rope exemption can be granted in writing by which person?
• What is the minimum number of interconnected openings an underground mine must have to the surface?
• Excavations over two (2) meters in depth shall be supplied with at least _____ ladder for every three (3) meters or fraction thereof. A ladder shall extend at least 60 cm. from the trench bottom to ground level.
• Class D mines and service contractors shall have at least which personnel?
• A scenario where an employee returns to the designated work on the next working day after injury would be categorized as which?
• What is the maximum number of holes that two men can individually light?
• Which class applies to mines employing a total of not more than 25 underground and 50 surface personnel?
• Within how many days after the end of each calendar month must the monthly report of accidents or sickness be submitted?
• When blasting down mat in top slice stopes or in other heavily timbered stopes; the timbers shall be ___________ before blasting.
• A ____________ for every 100 meters shall be provided along narrow haulage-way where clearance between the side of equipment and wall is less than 0.5 meter on each side.
• Which term refers to a container used to store explosives for a short period?
• Where speed of over three hundred (300) meters per minute is permitted in hoisting engines operating in shaft, there shall be fitted and in use a _____________________ and ____________________ which shall be maintained in efficient working order.
• The warning provision for hoistman is required in shafts exceeding what depth?
• Which term describes a person who holds a valid Blaster's Foreman license issued by the Philippine National Police upon proper endorsement of the Bureau?
• For rope lengths not exceeding 915 meters, the maximum safe working load shall not exceed what fraction of the breaking load?
• What is the daily fine for the third offense in the after-one-month category?
• Which statement is NOT specified as part of the magazine padlock requirement?
• A Detonator is a device used for detonating an explosive; like ordinary, electric, non-electric blasting caps, exploders, percussion caps, primers, electric detonators. Which term matches this definition?
• When top-slice stopes are worked in two shifts or more, blasting of the mat may be done at the _______ of the shift provided that the incoming shift is at hand to inspect the stope for fire as soon as the smoke has cleared out.
• Which magazine type is used for storing explosives in small to moderate quantities?
• Which term is the umbrella category that includes equipment such as electrical supply equipment, electrical utilization equipment, electric generating plant, electric supply line and substation?
• Which class applies to mines employing not less than 25 underground and 50 surface personnel, to not more than 50 underground and 75 surface?
• Who shall assess all safety and health risks in all its workplaces and deal with them?
• What is the term for an explosive manufacturing building used for the storage of explosives and blasting accessories?
• Safety and health practices of every employer shall be monitored and regulated by which body?
• What is the minimum depth threshold at which the mechanically produced air current becomes a requirement?
• Mines employing fifty or more men underground at any one time shall maintain which of the following organizations capable of sustaining operation during an emergency until outside help is available?
• Portable magazines designed to hold less than 50 kg must be resistant to which factors?
• Where is Safety Fuse stored?
• Authorized Nuclear Device Operators are individuals who are ___ to use and operate the nuclear device as defined under PNRI Regulations.
• Coal dust concentration in the air space shall not be more than ___________________ of air to prevent coal dust explosion.
• Sampling of which gas in the air is required under normal working conditions for mines employing at least 500 workers on average?
• Blasting down mat in top-slice stopes shall be done in the __________ of the shift. The stope shall be checked as soon as smoke has cleared after blasting.
• In misfire cases, what is the rule for expiry time to return to the blasting area?
• shall fix the maximum duration of the shift to be worked by the hoisting operator and shall in such a case insert this condition on the certificate of permission.
• A minimum of how many laps of rope shall be on the drum when the skip, cage or bucket is at the lowest point of the hoist way after final cutting and installing?
• The boreholes drilled across the course of the drive must not exceed what width?
• What is the basic fine for the first offense of late submission of monthly accident reports or Safety and Health Program?
• Underground magazines shall not be located within how many meters from shafts or other underground magazines?
• In the after-one-month category, what is the basic fine for the second offense?
• Which storage type is used to store a large quantity of explosive?
• In cyanide leaching operations, the pH level must be monitored and maintained not lower than which value?
• If toxic gases are found in mine workings and endanger workers, who must be immediately notified by the quickest means of communication?
• Magazine surroundings shall be kept clear of woods, grasses and other flammable and combustible materials for a distance of how many meters?
• All safety engineers and safety inspectors shall be duly registered with the which office and the corresponding permit shall be issued for this purpose?
• At least ______ spare hoist rope suitable for each winding engine in use shall be kept in reserve in every mine, and shall be at all times ready for use at all times except when there are two (2) engines for the same shaft or when the Director has in writing granted exemption.
• Who is defined as any person to whom the employer has delegated authority and responsibility for the direction and control of workmen?
• Leaching is defined as which process?
• Which term describes a storage facility where explosives are kept in large quantities for long-term storage?
• Which term describes a vehicle system that is not mounted on rails and is used for loading or drilling, powered by diesel, compressed, or electric motors?
• Who is the person responsible for the overall direction, control and supervision of the entire operation?
• A rope shall be attached by means of which type of socket or rope clips or clamps or the like?
• In case of a misfire or suspected misfire, how long must workers wait before returning to the blasting area?
• Underground magazines shall not be located within how many meters from a raise or winze used for personnel accessway?
• The length of the thimble required for clamped rope attachments shall be at least how many times the rope diameter?
• Registration of Temporary Safety Inspector requires which sequence of experiences?
• Fractured and broken roof or back of mine workings shall be provided with laggings of at least how thick, and these shall be tightly blocked?
• A mine establishing a rescue organization shall provide and maintain a Mine Rescue station with a minimum of how many self-contained oxygen breathing apparatus of at least how long duration?
• What is the daily fine for the first offense in the after-one-month category?
• New surface workers with no surface mining experience shall receive no less than how many hours of training?
• All piles shall have at least how many centimeters distance from the walls of the magazine?
• What is the basic fine for the third offense of late submission of monthly accident reports or Safety and Health Program?
• Stopes except top slicing shall be provided with how many entrances, the stope manway and the fill raise manway for ventilation and escapeway?
• Who is responsible for notifying the Regional Director about stoppages or resumptions of operations?
• Which term describes a material having a temperature exceeding 57°C (134.6°F)?
• With ladders installed at not more than 70 degrees from the horizontal, the landing platforms must be provided for every how many vertical meters?
• The ladders shall be constructed of adequately strong materials with rungs placed at equal intervals of _____________ apart and securely fastened and maintained in good condition at all times.
• What is the penalty for repeat violation of the same provisions as based on inspection reports?
• Within what radius from the main entrance is the storage of flammable liquids prohibited?
• The vertical height of working benches shall be kept at the maximum reach of which equipment?
• For mines deeper than 300 meters (measured along the shaft), which ventilation provision is required unless proven unnecessary?
• In what form is the penalty for violations not mentioned stated?
• Penalty for failure to give notice to the concerned RD within 24 hours of any fatal and non-fatal serious injuries.
• Liquefied Petroleum Gas is the gas liquefied by compression consisting of flammable hydrocarbons such as propane and butane, obtained as a byproduct from refining petroleum or natural gas; used chiefly as domestic fuel, and for industrial and motor fuel. Which term matches this description?
• What should be done to a stope after blasting to ensure safety?
• A magazine shall always be kept securely locked with at least how many door padlocks?
• Which term refers to any mine involved in the utilization of mineral deposits?
• Which term describes a mine working or excavation beneath the surface of the ground?
• Main haulage levels with inadequate clearance shall be provided with shelter holes placed not more than thirty _____________ apart along the walkway side.
• What minimum safe distance and speed must be observed when following another truck on a downgrade under normal conditions?
• Which term describes an individual who is inducted, trained and qualified to use and operate the nuclear device per PNRI regulations?
• In calculating the total weight of persons for the purpose of this sub-rule, ______ shall be allowed for each person.
• The width of the thimble required for clamped rope attachments shall be at least how many times the rope diameter?
• How many whistle blows are needed to move the train backward?
• Leachants are used in which role?
• Which term represents the safety metric that captures the amount of exposure to radiation in excess of ALARA or CPR Part 3 limits?
• Coal temperature shall not exceed ___________ to prevent coal dust explosion.
• What is the minimum working water pressure at the drill machine?
• In every mine operated on two or more levels in which men are hoisted by cage, skip or other conveyance other than a bucket, such cage or other conveyance shall be operated under the charge of a person appointed as ____________, and no person other than him shall give the signal for the movement of the cage, skip or other conveyance during the handling of the men through the shaft.
• With ladders installed at an angle greater than 70 degrees, landing platforms are required every how many vertical meters?
• In stable, massive, unbroken igneous rocks, what minimum back or thickness is required when a mine is driven under a river bed?
• Deviations from these requirements shall be subject to approval by which body?
• Decommissioning is the process in which the mine facility is placed in a safe and environmentally acceptable condition prior to cessation of mining operation. Which term is this describing?
• What is the depth threshold, in meters, above which work in unstable ground requires support?
• In signaling with light to stop a train in motion, which motion of the light is used?
• Fleet angles shall not be more than how many degrees?
• Which extinguishing agent is not suitable around cyanide storage areas?
• How many whistle blows are required to move the train backward slowly?
• What is the minimum distance a mine workings must maintain from any part of a winze or shaft where there is known or suspected dangerous accumulation of water?
• Which term includes devices such as signs, barricades, detours, or flagmen used to regulate vehicle movement?
• If ladder installed is greater than seventy (70) degrees from the horizontal, it shall have substantial and adequate landing platform for every ___________ vertical distance from each other.
• Which term defines a building regularly occupied in whole or in part as a habitation or workplace, with the exception of buildings occupied in connection with explosives?
• Who is authorized to administer withdrawals from the issuing magazine?
• It shall be prohibited to stay nearer than ______ from the shaft collar while waiting to board the cage.
• How often should a Safety Niche be provided along a narrow haulage-way?
• An explosive cartridge to which a detonator has been attached is called what?
• Which method should be used to determine and record the quantity and quality of ventilating air after substantial changes?
• Which class applies to mines employing not less than 50 underground and 75 surface, to not more than 150 underground and 250 surface?
• What is the burning-rate range (seconds per meter) for standard fuse used in mines?
• Employees with at least ten years experience in safety work or mining operation may be deputized by the employer as safety man, with the designation of a ______________ which shall be reported to the Regional Office.
• For larger mines, how often must all active working places be visited?
• Underground magazines shall not be located within how many meters from the blasting area?
• What term refers to patrol vehicles, traffic lights, signs, barricades, detours, flagmen, or other techniques and device used to regulate movement of vehicles according to prevailing circumstances?
• Class B mines and service contractors shall have at least which positions?
• Which term describes a vehicle or unit powered by a diesel, compressed air, or electric motor used for loading, hauling, grading, drilling or services functions and not mounted on rail?
• In every shaft exceeding 100 meters in depth, adequate provision shall be made whereby the hoistman is warned of the arrival of the cage, skip or other means of conveyance at a point in the shaft, the distance of which from the top landing place is less than the equivalent of ______ revolutions of the drum or sheave of the winding engine
• What is the minimum number of surface workers required for Class B classification?
• A magazine designed to accommodate less than 50 kg is what type of magazine?
• Which of the following is the highest basic fine listed?
• The keys to the magazine padlocks shall be kept separately by the blaster and representatives from which organization?
• Which group is described as a forum for consultation and cooperation among the employer or mine manager, employees, and safety representatives regarding safety and health measures?
• Which term refers to any chemical compound or mechanical mixture that by fire, friction, concussions, percussion or detonation may cause a sudden release of gases having pressure capable of producing destructive effects?
• A sign marked what shall be conspicuously installed and guards be posted if necessary whenever men are at work in the shaft?
• Trucks shall not be parked closer than which distances behind or in front and beside other trucks?
• What is the minimum number of underground workers required for Class B classification?
• Which term is defined as the number of total fatal and non-fatal lost-time accidents per million manhours worked?
• In case of misfires, AN-FO shall be ______ and a new primer shall be placed to reblast the hole.
• What type of fuse shall be used in mines?
• The maximum safe working load shall not be more than what fractions of the breaking load for 915 meters or less and over 915 meters?
• In addition to laggings, what action must be taken with fractured and broken roof or back?
• Which term refers to a facility where machines, foundry, electrical, fabrication and repair, carpentry and overhauling activities occur?
• Fire extinguishers containing _____________ as fire extinguishing agents shall not be used on, in or near an area of cyanide storage.
• What is the minimum fuse length for a single charge or loaded shot when it is the only charge fired in the same working place?
• Which term is used to describe the status of leaving a mine site in a safe, environmentally acceptable condition after operations end?
• No stopping shall be undertaken within ________ radius from the main shaft.
• Who is the person authorized by the Philippine Nuclear Research Institute to manage a radiation safety program?
• Which term refers to a condition or practice that could reasonably be expected to cause death or serious physical injury or damage to property prior to the adoption of appropriate measures?
• An _________________ shall be provided along the haulage-way at regular intervals to protect the employee from passing low profile trucks (LPT).
• If the remaining part of a blasted hole still contains explosive, what is this condition called?
• All safety engineer/inspector permits shall be subject to renewal every _________ with the Regional Office.
• If the remaining part of a blast hole does not contain explosive, what is this condition called?
• Safety and Health Office shall be headed by a duly which?
• Fatal and serious accident reports must be submitted to the concerned RO within 15 days after the accident.
• What is the required mode of notice within 24 hours after an accident?
• Permanent magazines designed to hold 50 kg or more explosives must be resistant to which threats?