PASSED ANSWERS!!
How close are vehicles allowed to approach loaded holes?
8 meters
Is the posting of a sign such as blasting-keep out at entrances to a
working place a satisfactory warning to keep out persons who might
want to enter during
blasting operations?
No, the area must he cleared and guards must block all access into the
blast zone
If it is necessary to drill an additional hole for the blasting of a misfired
charge, who is responsible for directing the angle and depth of the
hole
Shift boss
What is the minimum length of fuse allowed in a mine in bc?
1 meter
, What equipment may he used to fire electric blasts?
Approved blasting machines
When more than one shot is fired electronically, what step is required
immediately before blasting
Check for continuity with an approved circuit testing device
What precautions must you take in using electric detonators if the
weather has been stormy or unsettled
All person shall be cleared to a safe distance, all access to blast site is to
be guarded
What minimum distance must mobile radios be turned off jn the vicinity
of electric blasting circuits
20 meters
What is the first thing you do immediately after firing an electric blast?
Disconnect the firing cables from the firing device and short circuit them
Under normal circumstances no drilling shall be carried out within a
certain
number of meters of any hole containing explosives. What distance is
referred to?
5 meters