AND ANSWER | 2026 UPDATE | RATED 100%
CORRECT!!
Can a skid mounted fuel tank be used for transportation of diesel? Answer -
No, must be wheeled or self-propelled
What does "attending diesel equipment" mean? Answer - Diesel equipment
operator must be within sight and sound
What is the maximum concentration of DPM allowed under WV law? Answer -
0.12 mg/m^3
All significant external surface on diesel equipment should not exceed what
temp? Answer - 302 deg F
What is the ambient concentration of exhaust gas allowed in the mine
atmosphere under WV law? Answer - CO not to exceed 35 ppm, NO not to
exceed 25 ppm, NO2 not to exceed 3 ppm
What shall be done, if necessary, so as to provide clearance and to avoid
accidental contact with power lines when moving equipment? Answer -
Equipment shall be insulated and assemblies removed
What is minimum clearance on Trolley side? Answer - 12"
,What is the minimum size of shelter holes? Answer - 5' deep, 4' wide, and
height of entry
Who shall see that a conspicuous light is placed on the front and rear of trips?
Answer - The motorman and trip rider
Who shall provide conspicuous light for motor/trips? Answer - Mine Foreman
How should the deck of locomotives be protected from loose material in the
track entry? Answer - With shields
What shall be done to regulate the movement of trips? Answer - A proper
system of signals should be provided
From what side shall cars not be coupled? Answer - From the wire side or
inside of a curve
If a locomotive is not coupled to the trip ahead, what distance should be
maintained between the locomotive and trip? Answer - 300'
What is the maximum distance between shelter holes? Answer - 100'
What signaling devices shall be provided on locomotives and shuttle cars?
Answer - Sounding devices
Is back-poling prohibited? Answer - Yes, however permitted with precaution to
the nearest turning point, not to exceed 80'
, Why is back-poling prohibited? Answer - Pole may leave the wire and break,
causing serious injury
Bottom drop cars shall not be used as man trips Answer -
What is required on haulage roads between the end car of trips placed on
sidetracks and moving traffic? Answer - A clearance point shall be marked with
an approved device
What are the primary causes of haulage accidents? Answer - Improperly
maintained track, insufficient clearance, and unsafe practices
What safety precaution shall be observed where track is on a steep grade?
Answer - Derails shall be installed
If a pusher locomotive is not used on a trip, what is required? Answer - the
locomotive operator shall have an assistant to assist him in his duties
All self-propelled track haulage shall be equipped with what? Answer - E-stop
What shall be provided where miners load or unload from conveyor belts?
Answer - Adequate clearance of 36", proper illumination, suitable
communications
What is the maximum speed of belts which transport miners? Answer - 250
FPM, if clearance is 18", 300 FPM if clearance is 24" or greater
What is the minimum clearance to the roof for miners to ride belts? Answer -
Not less than 18" from the top of the roller. 24" if seam height permits