WITH ALL CORRECT ANSWERS
(GRADED A+)
When operating a crawler crane, the ground pressure will always be highest over the
A. corner
B. front
C. side
D. rear - Answer-A
Unless working in loose soft soil, a crawler crane should always travel ___________ on
pick and carry operations
A. away from the load
B. towards the load
C. as quickly as possible
D. with the crawler facing the load extended - Answer-B
Why use mats or cribbing?
A. to increase ground pressure
B. to reduce ground pressure
C. for long boom cranes
D. to lift outriggers or crawlers off the ground - Answer-B
Mats are usually ______ together
A. bolted
B. tied
C. glued
D. nailed - Answer-A
A crawler crane traveling forward is defined as traveling in the direction of
A. a load
B. the bull gear
C. the drive sprocket
D. the idler - Answer-D
When disassembling or assembling booms on lattice boom cranes, it is extremely
important to
A. always be inside the boom to drive out the lower pins
B. drive the top pins out from inside the boom
C. always keep the pendants taut and connected at the boom cranes
D. never touch any pin on any boom section located between the pendant attachment
points and the crane - Answer-D