Mobile Cranes Exam Questions and Answers 100% Correct
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Mobile Crane Operator
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Mobile Crane Operator
Mobile Cranes Exam Questions and Answers 100% CorrectMobile Cranes Exam Questions and Answers 100% CorrectMobile Cranes Exam Questions and Answers 100% CorrectMobile Cranes Exam Questions and Answers 100% Correct
T or F
As crane signaling is only a basic function and the signal person knows where...
Mobile Cranes Exam Questions
and Answers 100% Correct
T or F
As crane signaling is only a basic function and the signal person knows where the
loads will be positioned, training or testing of the signal person should not be
required - ANSWER - False
When using hand signals to direct a crane operator, an extended arm with the
thumb vertical and the fingers opening and closing into a fist indicates: - ANSWER -
raise boom and lower the load
Two closed fists with both thumbs pointing toward each other is the signal for: -
ANSWER - retract hydraulic boom
Which of the following is not a permitted use of an "operational aid"? - ANSWER -
used to test weigh a load prior to hoisting
T or F
Any crane component can be used on any other crane made by the same company
- ANSWER - false
A rough terrain crane is commonly referred to as; - ANSWER - cherry picker
Which of these conditions could be dangerous when operating a crane around a
newly constructed building? - ANSWER - uncompacted soil
When hoisting on outriggers with a permitted 360 degree swing, which position is
the most hazardous in most conditions? - ANSWER - over corner
T or F
, The ground pressure under the outriggers is higher than it is under a crawler track
because of the smaller bearing surface - ANSWER - True
The load line is hanging plumb when positioned over the rear. When positioned over
the side, the load line is observerd to be off center, this means it is - ANSWER - not
safe to lift until level in all positions
Crane stability is based of - ANSWER - lever principle
The crane center of gravity will vary the most while swinging from rear to side to
front with which type of machine? - ANSWER - truck crane
An outrigger float should be approximately how much larger that the outrigger pad?
- ANSWER - 3 times
When setting a a crawler crane for use on a new site, which of the following is not
required prior to use? - ANSWER - name of the person that will operate the crane
Where should the slings be attached when lifting lattice boom sections? - ANSWER -
use the end connections
T or F
During crane assembly, the counterweight is mounted after the installation of the
complete boom - ANSWER - false
When assembling lattice boom sections, which set of pins are installed first? -
ANSWER - both upper
When installing the boom pins, the pin should be pointing; - ANSWER - out away
from boom center
When dismantling a lattice boom, which boom pins should be removed first? -
ANSWER - both lower
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