CATEGORY 3 NON CAB OPERATED CRANE
SAFETY EXAM | QUESTIONS AND CORRECT
ANSWERS | GRADED A+ | LATEST VERSION |
VERIFIED ANSWERS
What is the bridge crane communications hand signal pictured, with the
palms up, fingers closed; thumb pointing in the direction of motion, and
jerking horizontally? ---------CORRECT ANSWER-----------------Trolley travel
At what point during a lift may trolley or bridge travel be started? ---------
CORRECT ANSWER-----------------When the tracks are clear and the load
is high enough off the ground to pass over obstacles safely
What is the crane communications hand signal pictured, with the arm
extended downward, forefinger pointing down, and moving the hand in a
small horizontal circle? ---------CORRECT ANSWER-----------------Lower
Why should the hook be positioned directly over the load when attaching
the load? ---------CORRECT ANSWER-----------------To avoid side loading
and dragging the load as it is picked up
Bridge cranes with rated capacities of less than 20,000 lbs. are classified
as ______ cranes. ---------CORRECT ANSWER-----------------Category 3
More than one signal person may provide signals to a crane operator at a
time. ---------CORRECT ANSWER-----------------False
,What is the crane communications hand signal pictured, with the arm
extended, palm down, moving the arm back and forth horizontally? ---------
CORRECT ANSWER-----------------Stop
A crane accident occurs when any element of the crane operating envelope
fails to perform correctly during crane operations, maintenance, or testing
which could result in any of the following EXCEPT: ---------CORRECT
ANSWER-----------------NOT Two-Blocking or overload
NOT Personnel Injury or Death Equipment malfunction
Common modes of operation for typical OET bridge cranes are: ---------
CORRECT ANSWER-----------------hoist, trolley, and bridge.
The crane operator is responsible for the pre-use ________ of the crane. --
-------CORRECT ANSWER-----------------check
Shackles, wire rope slings, and /or eyebolts, may be used to their full
capacity when used within ____ of vertical. ---------CORRECT ANSWER----
-------------5°
Which of the following formulas would be used to find the volume of a
rectangular or square shaped 3 dimensional object? ---------CORRECT
ANSWER-----------------Length X width X height
Knowing the load's approximate center of gravity prior to rigging or lifting a
load is important? ---------CORRECT ANSWER-----------------so the load
,does not shift, tip or swing out of radius, to help calculate stresses in each
sling, and to help choose the correct rigging gear. (All of the above).
What is the crane communications hand signal pictured with the arm
extended downward, forefinger pointing down, and the hand moving in a
small horizontal circle? ---------CORRECT ANSWER-----------------Lower
What is the purpose of a hoist limit switch? ---------CORRECT ANSWER----
-------------to prevent over-travel of the hook block and the possibility of two-
blocking
Why should the hook be positioned directly over the load when attaching
the load? ---------CORRECT ANSWER-----------------To avoid side loading
and dragging the load as it is picked up
The crane operator stops the crane whenever ___________ is in question.
---------CORRECT ANSWER-----------------Safety
Bridge cranes with rated capacities of less than 20,000 lbs. are classified
as ___________ cranes. ---------CORRECT ANSWER-----------------
Category 3
More than one signal person may provide signals to a crane operator at a
time. ---------CORRECT ANSWER-----------------False
, Which of the following formulas would be used to find the volume of a
rectangular or square shaped 3 dimensional object? ---------CORRECT
ANSWER-----------------length x width x height
Shackles, wire rope slings, and/or eyebolts, may be used to their full
capacity when used within ______ of vertical. ---------CORRECT ANSWER-
----------------5 degrees
A crane accident occurs when any element of the crane operating envelope
fails to perform correctly during crane operations, maintenance, or testing
which could result in any of the following except? ---------CORRECT
ANSWER-----------------Equipment malfunction
The crane operator is responsible for the pre-use ___________ of the
crane. ---------CORRECT ANSWER-----------------Check
Common modes of operation for typical OET bridge cranes are? ---------
CORRECT ANSWER-----------------Hoist, trolley, and bridge
Sling angles affect the actual stress on each leg of the sling. Lowering the
angle measured from the horizontal will? ---------CORRECT ANSWER-------
----------Increase the stress on each leg
When are operators required to perform a pre-use check of the crane? ------
---CORRECT ANSWER-----------------Prior to the first use of the crane each
day
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