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MA 4B Hoisting UPDATED ACTUAL Question and Answer | 100% Verified | 2026

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MA 4B Hoisting UPDATED ACTUAL Question and Answer | 100% Verified | 2026

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MA 4B Hoisting UPDATED ACTUAL Question
and Answer | 100% Verified | 2026
• What attaches the auger to the drill? -✓✓ A Screw or Pin


• Maximum safe travel speed of a side boom? -✓✓ 5mph


• What is the purpose of flights on an auger? -✓✓ Remove the spoils from the hole


• What is the purpose of mud in a drilling operation? -✓✓ To cool the drill and
stabilize the hole


• How are the spoils removed from the flights? -✓✓ By swinging the machine
away from the hole, lower to the ground and reverse the drill


• What are the auger flights attached by? -✓✓ Welds


• What is the purpose of shear pins? -✓✓ Protects the auger on a post hole digger


• How often should you check the head on a caisson drill? -✓✓ After every hole


• When is it safe to extend the boom of a concrete truck? -✓✓ When the out riggers
are fully extended and on firm, level ground


• What must be used on every piece of a reducer or rubber hose? -✓✓ Safety cable
or strap

, • What is a thrust block used for? -✓✓ It supports the weight of vertical sections in
vertical runs


• How far must you stay away from electrical lines with a concrete pump? -✓✓
17ft


• Where is a clog most likely to occur? -✓✓ At the reducer


• Minimum distance to stay clear of power lines during side boom operations -✓✓
10ft


• What is the primary cause of injuries to side boom operators? -✓✓ Improper
mounting and dismounting of the machine


• 520 CMR 6.00 -✓✓ To protect the citizens of the commonwealth


• How soon must DPS be notified of a death? -✓✓ Within 1 hour


• 3 basic rigging hitches -✓✓ Vertical, choker, basket


• Sling Safety Factor -✓✓ 5 to 1


• Chain Safety Factor -✓✓ 4 to 1

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