What attaches the auger to the drill? -
ANSWER -A Screw or Pin What is a thrust block used for? -
ANSWER -It supports the weight of vertical
sections in vertical runs
Maximum safe travel speed of a side boom? -
ANSWER -5mph
How far must you stay away from electrical lines
with a concrete pump? - ANSWER -17ft
What is the purpose of flights on an auger? -
ANSWER -Remove the spoils from the hole
Where is a clog most likely to occur? -
ANSWER -At the reducer
What is the purpose of mud in a drilling
operation? - ANSWER -To cool the drill and
stabilize the hole Minimum distance to stay clear of power lines
during side boom operations - ANSWER -
10ft
How are the spoils removed from the flights? -
ANSWER -By swinging the machine away
from the hole, lower to the ground and reverse What is the primary cause of injuries to side
the drill boom operators? - ANSWER -Improper
mounting and dismounting of the machine
What are the auger flights attached by? -
ANSWER -Welds 520 CMR 6.00 - ANSWER -To protect the
citizens of the commonwealth
What is the purpose of shear pins? -
ANSWER -Protects the auger on a post How soon must DPS be notified of a death? -
hole digger ANSWER -Within 1 hour
How often should you check the head on a 3 basic rigging hitches - ANSWER -Vertical,
caisson drill? - ANSWER -After every hole choker, basket
When is it safe to extend the boom of a concrete Sling Safety Factor - ANSWER -5 to 1
truck? - ANSWER -When the out riggers
are fully extended and on firm, level ground
Chain Safety Factor - ANSWER -4 to 1
What must be used on every piece of a reducer
or rubber hose? - ANSWER -Safety cable Ideal sling angel - ANSWER -60 degrees
or strap
1/3