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Catalog Number

2011.1.13

Object Name

Book

Summary

Mine Examination Questions and Answers compiled from examinations for positions of mine inspector, mine foreman, assistant foreman, fireboss, hoisting engineer, safety inspector and shotfirer.

CONTENTS
CHAPTER VI
VENTILATION ............................................................................259
Purpose of Ventilation-Efficient Ventilation-Quantity of Air
Required-Inclination of Seam-Effect of Seasons-Temperature
and Pressure-Weight of Moisture in Air Current-Ventilating
a Gassy Mine-Increasing the Circulation-Intake and
Return Airways-Conducting Air Currents-Appliances for
Conducting Air-Mine Doors-Mine Stoppings-Building Mine
Brattices-Purpose of Regulators-Regulator Calculations-
Overcasts or Air Bridges-Systems of Circulating Air Currents
-Splitting the Air-Natural Splitting-Proportionate Division
of Air.
CHAPTER VII
INSTRUMENTS.................................................................321
Use of Instruments-Anemometer-Mine Water Gage-The
Mercurial Barometer.
CHAPTER VIII
MINE AIRWAYS.................................................................349
Explanation of Terms-Equivalent Orifice-Formulas, Velocity
-Ventilating Pressure-Motive Column-How Pressure
Varies-Water Gage-Quantity of Air-Quantity: Pressure or
Water Gage-Work, Power, Horsepower-Shafts, Airways-
Dimensions of Airways-Arched Airways-Square Airways-
Comparing Two Airways-Different Circulations-Two Airways
to Pass Equal Quantity-Similar Airways.
CHAPTER IX
CIRCULATION OF AIR IN MINE..............................................421
Systems and Methods-Natural Ventilation-Furnace Ventilation
-Ventilating Fans-Principle and Action of Fans-Two
Fans Working Together-Steam Jet and Fan-Booster Fans-
Stopping Fans-Operation of Ventilating Fans-Speed of
Fan-Manometric Efficiency-Fan Calculations-Water Gage :
Speed of Fan-Quantity : Speed of Fan-Fan Problems-Plan
of Ventilation.
CHAPTER X
PAGE
MENSURATION...............................................................475
Geometry-Mine Maps and Surveys-Compass Work-Calculating
Room Centers-Driving Rooms on Sights-Driving Cut-
Off Headings-Strike and Dip-Borehole Problems-Inclination
of Seam-Slope Problems-Leveling.
CHAPTER XI
MECHANICS...........................................................516
Electricity-Dynamos and Motors-Installation of Electricity
-Precautions to Avoid Accidents-Electrical Requirements
-Dangers in Use of Electricity-Alternating vs. Direct Current
-Rescue of Victim of Electricity-Electric Motors-Air
Compression.
FOR INDEX SEE PART III

Author

James T. Beard, C. E. E. M

Title

Mine Examination Questions and Answers

Published Date

1923

Cataloged by

Graham, Tom

Credit line

Donated by Ronald Reeves