West Virginia Foreman Practice Test

These questions are part of the practice quiz. Start practicing

• For locations storing 25 gallons or more of oil, how many fire extinguishers are mandated?
• What shall all belt conveyors be inspected for daily?
• What does "direct supervision" entail for an apprentice electrician?
• How must permissible explosives be stemmed to remain permissible?
• What is the maximum concentration of DPM allowed under West Virginia law?
• What is afterdamp?
• What is the purpose of having reflective material on lifelines?
• Which precaution is essential when installing a siphon?
• How many fire extinguishers and what additional materials are needed at temporary electrical installations?
• What is the maximum temperature that external surfaces on diesel equipment should not exceed?
• What must individual conductors of an underground high voltage cable be provided with?
• How may rectifiers be ventilated?
• What is the consequence of prolonged exposure to 5% Carbon Dioxide levels?
• What is the maximum speed of belts which transport miners?
• What is the minimum charge of permissible explosive allowed for a hole 6' or more in depth?
• What is the effect of a short circuit on the quantity of air if fan speed is held constant?
• What dangerous gas may be formed when water is applied to a mine fire?
• What are the principal heat-producing ingredients of coal?
• What is a common origin of Hydrogen sulfide (H2S)?
• What should be done to provide clearance and avoid accidental contact with power lines when moving equipment?
• What is the maximum percentage of moisture that coal dust can retain?
• What is essential for maintaining safety on conveyor systems?
• In which direction is the maximum force of an explosion exerted?
• What is the specific gravity (SG) of nitrogen dioxide (NO2)?
• What is the weight of 1 cubic foot of Carbon Monoxide at 60 deg F and 30.00 inches Hg pressure?
• At trolley wire splices, where should trolley hangers be installed?
• How is the term "direct supervision" characterized in regard to safety?
• What is the required size of rock dust particles?
• What is the minimum distance that underground powder magazines can be placed from a roadway?
• What is the required visibility range of emergency equipment in a coal mine environment?
• How is a malfunction indicated by the CSE 102 detector?
• What is whitedamp?
• How is total mine pressure calculated?
• What is the minimum clearance to the roof for miners to ride belts?
• What is the specific gravity (SG) of Hydrogen?
• What particular danger is present if ventilation is restored following an explosion, before an exploration is made?
• What is the required height for high voltage power lines above surface work areas?
• What is the first check to be performed on the CSE 102 Methane detector?
• Under what condition should power to an auxiliary fan be switched off?
• What is the maximum distance mines may be developed underground before requiring a mechanically operated fan?
• What is the alarm level activation setting for CO on the LTX 310?
• What action should be taken if a distress signal is received through the lifeline?
• Who is tasked with providing conspicuous lighting for motor/trips?
• What is required in the hydraulic jacks of all ATRS systems to ensure functionality?
• What percentage of Carbon Monoxide will produce unconsciousness in 30 minutes?
• What is the lowest ignition temperature of Hydrogen?
• What is the acceptable distance for starting boreholes from any uninspected abandoned workings?
• In the event of a fire located on the intake, how should miners be protected from smoke?
• What must be done if an auxiliary fan fails or stops?
• How frequently must outlets with valves be located along water lines in haulageways?
• What is necessary for the effective operation of a foam generating machine?
• How does reduced oxygen content in the atmosphere affect Methane explosibility?
• What does BTU stand for in relation to coal?
• What are the two types of pumps commonly used in coal mines?
• What is the required distance telephone wires must be maintained from other power wires?
• Why is it critical for roof bolts to be installed according to RCP specifications?
• What specific materials are required for constructing lifeline cords?
• What is the maximum number of persons permitted to work on a single current of air?
• What is the minimum permitted distance between slope and drift openings?
• What is the lowest ignition temperature of Hydrogen sulfide (H2S)?
• How many days are allowed to produce employee records upon request by MHST?
• What distance should 2-way communication facilities be from the mine portal?
• Why is low oxygen content necessary before opening a fire seal?
• What is Nitrogen mainly characterized as?
• How long should a person wait after a misfire before going back into a place?
• What fire protection is required at wooden doors through which power lines pass?
• What is the largest size particle of coal dust that can initiate an explosion?
• How far apart should members of a mine rescue team travel?
• What precautions are required when performing welding and cutting?
• How often must each coal mine employee take refresher first aid training?
• What is the first step to take when a misfire occurs?
• What is the arbitrary waiting period after temporary seals are erected before rescue teams can return?
• How does Carbon Monoxide cause injury to life?
• Can a skid mounted fuel tank be used for transportation of diesel?
• What is the maximum charge of permissible explosive allowed for a hole 6' or more in depth?
• What changes occur in the mine atmosphere sealed within a fire area?
• How do silicone compound vapors affect the combustible gas sensor readings?
• Which type of gloves should not be worn around equipment?
• What are the primary causes of haulage accidents?
• What is the specific gravity of Methane?
• Are additional cache storages required outside the working section?
• How far from the barricade should precautionary measures to prevent gases be implemented?
• How many feet outby the longwall face must first aid equipment be maintained?
• What is the maximum delay allowed for a series delay in any one round?
• From what side shall cars not be coupled?
• Which aspect is NOT a requirement for lifeline cords in a mining environment?
• How many net tons are estimated to be in a foot acre of coal?
• What is required on haulage roads between the end car of trips placed on sidetracks and moving traffic?
• What is the specific gravity (SG) of Hydrogen sulfide (H2S)?
• What is the maximum allowable depth of a drill hole?
• What is the primary hazard associated with hydrogen sulfide (H2S)?
• How should the deck of locomotives be protected from loose material in the track entry?
• What is a potential consequence of not checking individuals out of the mine after recovery?
• What type of blasting cable is considered proper?
• What is meant by "immediate supervision" for an apprentice electrician?
• What is blackdamp?
• What is the minimum distance required for all power lines constructed over haul roads?
• What does natural ventilation refer to?
• What percentages of methane in a methane air mixture, when burned or exploded, will produce relatively large amounts of Carbon Dioxide?
• What happens to oxygen availability when Methane levels exceed 15%?
• What is a recommended practice for handling explosives underground?
• What precaution should be taken when persons are coming off shift from recovery operations?
• Where shall "Danger High Voltage" signs be posted?
• How can excessive internal pressure be relieved from a sealed area without allowing air to enter?
• What is the maximum CO2 content allowed in air delivered to working places?
• How does the body receive oxygen?
• What should happen in the event of an accident to the ventilation fan?
• What action must be taken when the primary escapeway is blocked with water?
• What chemical change does oxygen undergo to support life?
• How is the formation of nitrogen dioxide closely connected to explosive materials?
• What is the potential consequence of having too much methane present when firing explosives?
• What must be done after supplies are transported using belts prior to transporting miners?
• What effect does an oxygen enriched atmosphere have on combustible gas readings?
• Which four gases does the M40M monitor?
• What percentages of methane in a methane air mixture, when burned or exploded, will produce relatively large amounts of Carbon Monoxide?
• To ensure it remains permissible, what is required for firing a permissible explosive?
• What is Firedamp?
• What method can prevent gases from an explosion from reaching the barricade?
• What is the principal danger while sealing mine fires?
• What is the maximum allowable percentage of silica in rock dust?
• What is a working face in a coal mine?
• What percentage of nitrogen dioxide (NO2) is considered fatal?
• What is the explosive range of Hydrogen sulfide (H2S)?
• How many portable fire extinguishers are necessary for each permanent electrical installation?
• How many air courses are required to have two-way communication?
• What is a fail-safe ground monitor?
• What ensures the safe coupling of cars?
• At what percent of oxygen will a person start to breathe faster and deeper?
• What defines a working place in a coal mine?
• What effect do constrained airways have upon velocity, when the volume remains the same?
• How much operation time remains when the Solaris low battery alarm sounds?
• What distance is identified as safe between locomotives and trips?
• Why is it important to keep drill holes at a specified depth?
• How should a mine fire be approached?
• What must be provided at each permanent electrical installation?
• What shall the bursting pressure of a fire hose be in relation to the static water line pressure?
• What is the penalty for failure to notify the Hotline?
• What can happen if the charge is separated by drillings left in the hole?
• How can you check the last calibration data on the LTX multi-gas detector?
• Where should a blasting cap be positioned when a bore hole is charged?
• What constitutes the "work area" for an apprentice electrician?
• What is the lifeline signal to indicate "all right" when the person is at rest?
• What is the specific gravity (SG) of sulfur dioxide?
• What type of fire protection is needed during cutting, welding, or soldering operations?
• What additional requirement is stipulated at each underground oil storage station besides fire extinguishers?
• What is the proper method for performing the electrical zero test on the CSE 102 detector?
• Which of the following is a key factor in preventing accidents in haulage systems?
• How shall telephone lines be installed?
• What must an examiner leave as evidence that the exam was completed?
• What materials are prohibited in or around powder magazines?
• What creates the force when an explosion is fired?
• What type of items must be included in an escape kit located in storage caches?
• How can compressed air assist within a barricade?
• What is electrolysis?
• What happens if an obstruction is present in a pipe being heated?
• How does the action of a mine fire cause explosive gases to be formed?
• What should not be used as man trips?
• What is the specific gravity of Nitrogen?
• What is the required distance power magazines must be located from the mine opening?
• What should be taken into account when evaluating air quality in a mine?
• Why is sulfur undesirable in coal?
• What effect do constrained airways have upon velocity, when the ventilation pressure remains constant?
• When should boreholes be started near abandoned workings?
• Who sets the due date for payment of a notice of assessment?
• What is the purpose of rail bonding?
• What must be provided at coal mining sections producing over 300 tons of coal per shift?
• What causes stinkdamp?
• In what direction should doors swing to ensure they close properly in a mine?
• What effect does barometric pressure have upon a sealed fire area?
• Why should individuals be kept at the FAB after rescue until they are partially recuperated?
• What could a fluctuating high CO concentration in a sealed fire area indicate?
• Why is a centrifugal pump unsuitable for gathering service?
• What distinguishes a kettle bottom from a typical rock formation?
• What signaling device shall be provided on locomotives and shuttle cars?
• Which conditions of mine air can be measured using specific devices?
• How can the incombustible content of rock dust be determined after application?
• What is the lowest ignition temperature of Carbon Monoxide?
• What is one method for removing a misfire?
• Which signal should a rescue team member respond to in the case of needing to stop?
• How close to a mantrip may a powder trip be operated?
• What shall be provided on all underground (UG) belts?
• How is Hydrogen typically detected?
• When using a lifeline, what does three pulls signify?
• What is the term for the resistance faced by air in a mining airway?
• According to West Virginia state law, when must the LTX 310 oxygen level be calibrated?
• What role do signaling devices play in safe locomotion?
• What is the minimum requirement for first aid training for coal mine employees?
• What work is permissible in the face areas while boreholes are being charged?
• Where should intrinsically safe, battery-powered strobe lights be attached?
• How much air should be delivered to the LOC when places are driven up 200' without a free airflow connection?
• What is the effect of increasing airway area on velocity, assuming volume is constant?
• What is the typical behavior of Methane in an atmosphere with insufficient oxygen?
• What is the requirement for fire extinguishers at working sections producing more than 300 tons of coal per shift?
• What is the procedure when a sealed fire is recovered by direct ventilation?
• How is "work area" defined for an apprentice electrician working under supervision?
• What evidence should be left after an examination by a certified mine foreman/fire boss?
• What plays a crucial role in determining the efficiency of mine ventilation?
• What is the minimum requirement for fire protection at temporary electrical installations?
• How many feet of plant material can be found for each foot of coal seam?
• What is nitrogen dioxide (NO2)?
• What should water lines be capable of delivering?
• What shall be provided where miners load or unload from conveyor belts?
• Why is proper clearance important when loading or unloading from conveyor belts?
• Which protective gear is essential for welding and cutting operations in a mine?
• What precaution should be taken during a mine fire in a gassy section?
• How is sulfur dioxide (SO2) formed in a mining environment?
• What method should be used to regulate the movement of trips?
• What type of signal must be prepared by the fire boss at the mine entrance at the beginning of a shift?
• What device is crucial to enhance safety on self-propelled track units?
• What kind of work is excluded from the definition of "electrical work" in coal mines?
• What is the specific gravity (SG) of West Virginia coals?
• Which signifies the proper protection for locomotives against elements on track entries?
• What is the appropriate placement and operation for auxiliary fans?
• Which precaution is vital when back-poling is permitted?
• Under what conditions is it inadvisable to explore ahead of fresh air?
• At what oxygen level is it advisable to attempt to open a fire seal?
• What defines the tension of a roof bolt?
• Why is it not advisable to unseal a fire shortly after carbon monoxide has disappeared?
• What condition is necessary for miners to safely ride conveyor belts?
• What are the principal causes of mine explosions?
• What is the maximum amount of explosives that can be stored underground in magazines?
• What amount of coal dust is sufficient to propagate a coal dust explosion?
• How does an increase in Carbon Dioxide levels affect lung ventilation?
• What percentage of Carbon Monoxide will produce symptoms in several hours?
• What is the maximum distance that a miner should travel without an extra cache?
• How do you signal to advance using the lifeline?
• What is the danger of reversing the air current in the event of a mine fire?
• What percentage of Carbon Monoxide will produce a tendency to stagger in 1-1.5 hours?
• What percent of Carbon Dioxide is typically exhaled by the human body?
• What is the maximum delay interval between adjacent rows of shots using millisecond delay detonators?
• When must mine operators review pillaring plans with personnel before starting work?
• What does "attending diesel equipment" refer to?
• What does each inch difference in water column level represent in pressure?
• Where must first aid equipment be maintained for coal mine operators?
• What is the minimum distance permitted between shaft and slope openings?
• What percentage of Carbon Monoxide will produce discomfort in 2-3 hours?
• What measures can be taken if unexploded charges are suspected?
• What is a precaution to take when heating pipe?
• Is Hydrogen sulfide (H2S) considered poisonous?
• What would continued high oxygen content in a sealed fire area indicate?
• Is sulfur dioxide (SO2) classified as combustible?
• How can mine fans be made reversible?
• What is the minimum size for shelter holes according to safety regulations?
• What effect do oxygen deficient atmospheres have on combustible gas readings?
• What is the comparative effect upon oxygen between a raging fire and a smoldering fire?
• Who must a person request a conference in writing from after receiving a notice of assessment?
• What percent of H2S becomes dangerous within 30 minutes?
• What is the lifeline signal for retreat?
• What items are required in storage caches located within 500 feet from the working face?
• All self-propelled track haulage shall be equipped with what?
• How does mine resistance vary in relation to the velocity?
• What percent of Methane is necessary for maximum explosive violence?
• What are the dangers associated with signal equipment and circuits?
• What is the penalty for creating an incorrect map or providing false statements?
• How does incombustible stemming affect the flame of an explosive?
• If a pusher locomotive is not used on a trip, what is required?
• What is the reason for prohibiting back-poling?
• When should the initials of a certified foreman be recorded?
• At what percentage of methane is there a danger when firing permissible explosives?
• What is the first thing to be done on the surface in the event of an explosion?
• What is the minimum clearance required on the trolley side?
• What effect does coal dust in the atmosphere have upon the explosibility of methane?
• What type of devices should be provided for cutting machine drums?
• What is the maximum distance a mine rescue team should explore under favorable conditions when lives are at stake?
• What is the maximum distance allowed between shelter holes?
• What check must be made prior to each day's use of a Solaris?
• According to regulations, how tight should roof bolts be installed?
• Which factors determine mine resistance?
• What is one key characteristic of sulfur dioxide?
• Which gas is typically associated with increased lung ventilation when its levels rise?
• What is a siphon primarily used for in operation?
• Which three gases are detected by the LTX 310?
• Welding and cutting may be done in mines if what condition is met?
• What does the term "electrical work" refer to in the context of coal mine equipment?
• What is the barometer reading that indicates normal air pressure at sea level?
• What lifeline signal indicates distress?
• When should a cutting machine not be moved?
• Who is responsible for ensuring a conspicuous light is placed on the front and rear of trips?
• How would an air analysis indicate that a fire was extinguished?
• What material is often used to shield underground high voltage cables?
• How is the battery voltage test performed on the CSE 102 detector?
• What characteristic of the flame determines the permissibility of an explosive?
• At each permanent underground oil storage station, what is the fire extinguisher requirement?
• If a locomotive is not coupled to the trip ahead, what distance should be maintained between them?
• What is the most harmful gas found in afterdamp?
• How is natural ventilation produced in mines?
• Which statement best describes a working section in a coal mine?
• How often should directional indicators be placed on lifeline cords?
• What is a kettle bottom?
• Who should receive a copy of the mine emergency shelter plan?
• Which compound is a product of complete combustion?
• How many sheathed explosives may be fired at once?
• What advantage does rock dust have compared to water in extinguishing mine fires?
• How shall explosives and firing devices be stored underground?
• When a fan stops and ventilation is restored within 15 minutes, what should happen next?
• How far must powder boxes or magazines be kept from the blasted face?
• Where should trolley wire be positioned in relation to the rail?
• How can the danger of an explosion be minimized while sealing a fire area?
• What is the required scale range for mine maps?
• Why is there no explosion when the percentage of Methane exceeds 15%?
• On belts that do not transport miners, at what intervals are stop/start controls required to be placed?
• What safety precaution shall be observed where track is on a steep grade?
• What is the most violent explosive point of Hydrogen sulfide (H2S)?
• What is required for locomotives and self-propelled personnel carriers in mining operations?
• What is the explosive range of Hydrogen?
• What is the allowable ambient concentration of CO in the mine atmosphere under West Virginia law?
• About how much air does the average person require per hour when at rest within a barricaded area?
• What is the average weight of loose coal in pounds per cubic foot?
• How should posts be installed in a pitched location?
• What is the minimum distance required between shaft openings?
• What shall be the minimum dimensions of man doors?
• In terms of safety, where is the best position for trolley wire regarding worker proximity?
• What is the primary purpose of ventilation in mining?
• What is the lowest ignition temperature of methane?
• How long should the ITX function with a fully charged battery pack?
• Where should a self rescuer be positioned in relation to a miner?
• Will diffused gases separate from a mixture because of their weight difference?
• What should be done at the bottom of each regularly traveled slope or shaft?
• Which of the following gases is tasteless, odorless, and colorless?
• What is the principal cause of ignition of explosive mixtures?
• Is back-poling permitted?
• What is the specific gravity of Carbon Dioxide (CO2)?
• What preparatory work is necessary before unsealing a fire area?
• What should be done to maintain safety when storing explosives?
• How long can the ITX function when using the ISP sampling pump for continuous operation?
• How shall cable couplers be constructed?