Name: Score:
20 Multiple choice questions
Term 1 of 20
According to OSHA 1926 subpart cc, floats/pads must be fastened to the outrigger/stabilizers
when
They are in use
Longest section can be overloaded
Off the supporting surface
Determined by the crane manufacturer
Term 2 of 20
What is the primary concern when operating rough terrain cranes on rubber at high boom
angles?
Cross wind stability
Increased ballast
Backward stability
Forward stability
Term 3 of 20
According to OSHA 1926 subpart cc, what function does the holding valve on a vertical
outrigger jack perform?
Maintain stability in the horizontal ram
Hold pressure in the vertical ram if a hydraulic connection fails
Release pressure in the vertical ram for adjustments
Regulate the speed of the vertical ram movement
, Term 4 of 20
When a crane's telescopic boom sections are required to be extended equally, and the are
not, the
Entire boom can lose stability
Longest section can be overloaded
Shortest section can be overloaded
Central section can be damaged
Term 5 of 20
A crane is operating with a long boom, on outriggers, on uneven ground. Under these
conditions it is important to
Extend the boom fully without blocking
Adjust the boom angle to match the slope of the ground
Secure the crane with additional chains and straps
Block under the float or pad to achieve a 90 degree angle between the cylinder rod and
the float or pad
Term 6 of 20
When working on rubber, a rough terrain crane's capacity is based on what percentage of
tipping?
80%
90%
75%
60%
20 Multiple choice questions
Term 1 of 20
According to OSHA 1926 subpart cc, floats/pads must be fastened to the outrigger/stabilizers
when
They are in use
Longest section can be overloaded
Off the supporting surface
Determined by the crane manufacturer
Term 2 of 20
What is the primary concern when operating rough terrain cranes on rubber at high boom
angles?
Cross wind stability
Increased ballast
Backward stability
Forward stability
Term 3 of 20
According to OSHA 1926 subpart cc, what function does the holding valve on a vertical
outrigger jack perform?
Maintain stability in the horizontal ram
Hold pressure in the vertical ram if a hydraulic connection fails
Release pressure in the vertical ram for adjustments
Regulate the speed of the vertical ram movement
, Term 4 of 20
When a crane's telescopic boom sections are required to be extended equally, and the are
not, the
Entire boom can lose stability
Longest section can be overloaded
Shortest section can be overloaded
Central section can be damaged
Term 5 of 20
A crane is operating with a long boom, on outriggers, on uneven ground. Under these
conditions it is important to
Extend the boom fully without blocking
Adjust the boom angle to match the slope of the ground
Secure the crane with additional chains and straps
Block under the float or pad to achieve a 90 degree angle between the cylinder rod and
the float or pad
Term 6 of 20
When working on rubber, a rough terrain crane's capacity is based on what percentage of
tipping?
80%
90%
75%
60%
