Underground Foreman (91-100)

In order to get 100%, you must answer all of the following correctly.

91. How often must approved methane detectors be calibrated?

Daily
Weekly
Monthly
At least every 30 calendar days

92. What is required to be stored within 800 feet of the working face at a specified location on each underground working section at all times when miners are working on such sections?

First aid supplies
Supplementary roof support materials
An escape capsule
A 10 ton lifting jack compatible with the seam height or other equivalent lifting device in working condition

93. How many years of practical underground mining experience is required to qualify for a shot firer certification?

1
2
4
6

94. What must be done before any person is permitted to perform any work within the confines of the cargo space of a crusher, feeder, or rotary breaker?

Nothing in particular
It must be deenergized, locked out, and suitably tagged
All combustible material must be removed
Remote communications must be established

95. How many years of practical underground mining experience is required to qualify for a mine rescue team member certification?

1
3
5
6

96. What work is permitted to be done while boreholes are being charged in a working place?

None
Only work in connection with timbering and general safety
Roof bolting
Machine dusting

97. Which of the following applies to the operating controls of all battery powered mobile equipment?

They must be of electro-hydraulic design
They must be clearly marked to distinguish the forward and reverse positions
They must be welded to the frame
They must chime when left on

98. What is low voltage?

Up to and including 660 volts
240 volts and below
120 volts and below
None of the above

99. What must mechanically operated grinding wheels be equipped with?

Safety washers
Substantial retaining hoods
Goggles (unless eye shields are used)
All of the above

100. What is high voltage?

More than 1,000 volts
More than 550 volts
More than 660 volts
More than 1,500 volts

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•	Test No. 1 (1-10)
•	Test No. 2 (11-20)
•	Test No. 3 (21-30)
•	Test No. 4 (31-40)
•	Test No. 5 (41-50)
•	Test No. 6 (51-60)
•	Test No. 7 (61-70)
•	Test No. 8 (71-80)
•	Test No. 9 (81-90)
•	Test No. 10 (91-100)