Level Exam Review Flashcards
(6 cards)
A cement that is used when concrete forms must be removed as soon as possible is Type —
III (3)
To control water seepage in excavations that have a high water table, the commonly used retention material is
steel-sheet piling
When the signal person stands with arm extended, thumb pointing down, and flexes her fingers in and out, the crane operator is to
lower the boom and raise the load
The signal given by extending both arms and moving them rapidly back and forth horizontally is
Emergency stop
When the signal person holds the forearm vertical, with the forefinger pointing up, and moves the hand in a small circle, the crane operator is to
hoist the load
As the angle between two slings increases along the horizontal plane, the amount of tension on a pair of slings
increases