The labor argus. [volume] (Charleston, W. Va.) 1906-1915, 1910-05-26
MINE FOREMEN'S
EXAMINATION
Held at Logan May 18th, and 10Th,
BY The Department of Mines,
PRELIMINARY QUESTIONS

q Give the date and place of YOUR
| birth.
r. Are you citizen of the United
states and a resident of West Virginia,
T. Are you a native or naturalized
citizen' II the latter, produce proofs
| of your naturalization
D. Have you testimonials of eharac-
ters Ii Eot, give the names and ad.
dresses OF three reputable persons as ref
| erences
r. How many years experience have
You had in about the mines of this
State, or elsewheres Give the names
or the mines, the company or persons for
whom you worked, and the kind of work
you performed.
F. How many openings should there
| be at each of the mines in this Statee
What does the law require in regard to
their condition and equipment
Il. What are the requirements of the
law with regard to maps7 Stale fully
the character of the data to be put, on
said maps.
ii. What does the law demand in re-
gard to the equipment of shafts, cages
hoisting machinery, engineers, safety APP
pliances, signals and the manner and
time OF inspecting the same.
| |. Under what condition does the law
demand the withdrawal of the men from
the mine! What are the regulations of
the law as to blasting coal and the use
of explosives in mines that are dry and
dustys
j. What does the law require in re-
gard to doors, stoppings, overcasts,
splits, etc.s Where should they be plac.
ed, how constructed, and what kind of
material should be used7
X. What is the mine foreman IS duty
when he is unable to comply with the
law by reason of supplies and material
not being furnished hims
MINE FOREMAN'S QUESTIONS.
l. State fully what the legal duties
and qualifications of mine forema,
are
| =. What are the different methods of
producing ventilation in coal mines, and
tilating powers depend, comparing the
efficiency of each to produce results to
suit the various conditions of minings
3. If your fan is running at its full
capacity, what means would you adopt
to increase the volume of air in the
mine9
4. Show by sketch how you would
set timbers:- LIST. Where the vein is
highly inclined. End. Where it is lev
ell. 3rd. Where the bottom is hard and
the roof brittle. 4th. Where the bot
|
paratively hard.
.. State how you would draw pillars
to recover the greatest percentage of the
coal seam, with the greatest safety to
the workmen and economy in cost.
.. If you had mine employing $50
men, how many splits in the air current
would be required to comply with the
! law, and what volume of air should be
put in circulation The total length of
airway being 5000 feet and the size 6
feet by feet, what is the velocity of
the air current and the extent of the rub
bling surface?
Z. What dangers arise from the use
of electricity in coal mines9 What pre-
cautions would you use to guard against
these dangerse What conditions in a
mine would prevent the use of electrici-
ty?
S. What is the principal cause of dan.
ger in the hring OF gunpowder in flame
less explosives, and how can these dan
gers be overcome? Where and under
what circumstances are explosives from
coal dust likely to occur; and how would
you prevent Gas far as possible) these
explosions?
State how mine fires originate. and
the dangers in connection with them.
State how you would reduce these dan.
gers and the methods you would adopt.
If you had a fire in an entry. which
would you close up first, the intake or
return airway7 Give your reasons fully.
10. How does it happen that certain
sizes of coal pillars in single and
double entry, would in one coal field be
totally inadequate for the support of the
cover, while in another coal field the
same would be perfectly safe, and could
be extracted with comparatively little
| loss. and yet the thickness of the covers
of the veins in the two fields might be
equal?
| IL. What is creep7 What are the
| general causes of a creeD2 How NAV