Ground Control
How often should ground conditions be inspected?
At least once per shift.
How many hours of safety training are required for a new miner?
24 hours.
A shock involving as little as ______ volts can be fatal.
40 volts.
What is the required minimum PPE to work on an MSHA governed site?
Non-metal hard hat, steel toed shoes, and safety glasses.
What is the minimum distance to stay away from the top edge of the high wall?
6 feet.
How often does an above ground mine get inspected by MSHA?
Twice a year.
According to MSHA regulations, all electrical repairs must be performed by:
A qualified electrician.
What is site specific training?
Training conducted at the mine site concerning the specific hazards associated with that particular site.
Where is the safest place to be when in a quarry or mine?
In your vehicle.
Part 46 are the MSHA rules governing what?
Surface mine and quarries.
10 feet.
Dual hearing protection is required by MSHA when performing what task.
Using an air impact wrench.
What is the minimum size requirement for a berm?
Axle height of the largest piece of equipment on the mine site.
To conduct Part 48 training, a mine must have an MSHA approved what.
An approved training plan.
Zero.
What are three devices that are required when inflating tires?
What is the required distance to work from the base of a high wall?
25% of the height of the face of the high wall.
How often must miners receive refresher training and what is the duration of this training.
Annually, 8 hours.
What is the most dangerous path for currents to pass through the human body?
The chest area.
When is it acceptable to weld or apply heat to a wheel or rim?
Never.