NCCCO Telescopic Boom Crane Swing Cab
(TLL) Test Questions and Verified
Answers (Graded A+)
• A crane is operating with a long boom, on outriggers, on uneven ground. Under these
conditions it is important to -✓✓Block under the float or pad to achieve a 90 degree
angle between the cylinder rod and the float or pad
• What is the purpose of a boom length indicator? -✓✓Indicates the extended length of
boom
• According to OSHA 1926 subpart cc, floats/pads must be fastened to the
outrigger/stabilizers when -✓✓They are in use
• A crane's jib is offset 15 degrees versus it's original 0 degree offset and the boom
angle remains unchanged, the load radius will -✓✓Increase
• When leaving telescopic boom cranes unattended overnight or for longer periods, the
boom should be -✓✓Fully retracted and stowed
• On a telescopic boom truck crane that has all 5 outriggers properly positioned, the
working area diagram will indicate the "over front" area is -✓✓Determined by the crane
manufacturer
• According to OSHA 1926 subpart cc, who determines if a crane can be used for pick
and carry operations? -✓✓The manufacturer
• According to OSHA 1926 subpart cc, what function does the holding valve on a
vertical outrigger jack perform? -✓✓Hold pressure in the vertical ram if a hydraulic
connection fails
• When a crane's telescopic boom sections are required to be extended equally, and the
are not, the -✓✓Longest section can be overloaded
• With the boom extension mounted on the boom tip, the main boom rating must be
reduced to compensate for the boom extension's -✓✓Effective weight
• According to OSHA 1926.1433, which of the following must be on the crane?
A. A fire extinguisher
B. Anti two-block warning system
C. Battery disconnect switch
D. Vehicle identification number -✓✓A. A fire extinguisher
(TLL) Test Questions and Verified
Answers (Graded A+)
• A crane is operating with a long boom, on outriggers, on uneven ground. Under these
conditions it is important to -✓✓Block under the float or pad to achieve a 90 degree
angle between the cylinder rod and the float or pad
• What is the purpose of a boom length indicator? -✓✓Indicates the extended length of
boom
• According to OSHA 1926 subpart cc, floats/pads must be fastened to the
outrigger/stabilizers when -✓✓They are in use
• A crane's jib is offset 15 degrees versus it's original 0 degree offset and the boom
angle remains unchanged, the load radius will -✓✓Increase
• When leaving telescopic boom cranes unattended overnight or for longer periods, the
boom should be -✓✓Fully retracted and stowed
• On a telescopic boom truck crane that has all 5 outriggers properly positioned, the
working area diagram will indicate the "over front" area is -✓✓Determined by the crane
manufacturer
• According to OSHA 1926 subpart cc, who determines if a crane can be used for pick
and carry operations? -✓✓The manufacturer
• According to OSHA 1926 subpart cc, what function does the holding valve on a
vertical outrigger jack perform? -✓✓Hold pressure in the vertical ram if a hydraulic
connection fails
• When a crane's telescopic boom sections are required to be extended equally, and the
are not, the -✓✓Longest section can be overloaded
• With the boom extension mounted on the boom tip, the main boom rating must be
reduced to compensate for the boom extension's -✓✓Effective weight
• According to OSHA 1926.1433, which of the following must be on the crane?
A. A fire extinguisher
B. Anti two-block warning system
C. Battery disconnect switch
D. Vehicle identification number -✓✓A. A fire extinguisher
