NCCCO TELESCOPIC BOOM CRANE –
SWING CAB (TLL) EXAM QUESTIONS
WITH CORRECT ANSWERS LATEST
UPDATE
1. Leveling Procedure
Question: To properly level a crane, you set a carpenter's level on the turntable
or upper works, level the crane to within 1%, then swing the crane:
A) 90 degrees and recheck level
B) Over the front
C) 180 degrees
D) Over the rear and recheck
Answer: A – After initial leveling, swing the crane 90 degrees and recheck level
to ensure the crane is level in all quadrants of rotation .
2. Outrigger Visual Contact
Question: During crane setup when an operator extends the crane's outriggers,
the operator should:
A) Check tire pressure first
B) Make visual contact with the outriggers or post a signal person
C) Sound the horn continuously
, D) Place all blocking on the ground before extending
Answer: B – The operator must maintain visual contact with outriggers or post a
signal person to ensure safe extension and prevent crushing hazards .
3. Outrigger Setup on Uneven Ground
Question: A crane is operating with a long boom, on outriggers, on uneven
ground. Under these conditions, what is the most important action?
A) Extend outriggers to maximum reach
B) Block under the float or pad to achieve a 90degree angle between the
cylinder rod and the float
C) Lower the boom to reduce leverage
D) Use only three outriggers for stability Answer: B – Blocking must
create a 90-degree angle between the cylinder rod and the float/pad to ensure
proper load distribution and prevent sideloading on the hydraulic cylinder .
4. Outrigger Float Requirements
Question: According to OSHA 1926 Subpart CC, when must floats/pads be
fastened to the outrigger/stabilizers?
A) Only during travel
B) When they are in use
C) Only when operating on soft ground
D) At all times, even when stowed
,Answer: B – OSHA requires that floats/pads be fastened to outriggers when
they are in use to prevent accidental displacement during lifting operations .
5. Outrigger Beam Extension
Question: When is it permissible for outrigger beams to be less than fully
extended?
A) When a structure blocks full extension
B) When lifting over the retracted outrigger beam
C) Only when the manufacturer's procedures permit
D) When operating on firm, level ground Answer: C Outrigger beams
may only be less than fully extended when the manufacturer's procedures
specifically permit this configuration .
DOMAIN 2: OPERATIONS (Approximately 23% of test)
6. Jib Offset Effect
Question: A crane's jib is offset 15 degrees versus its original 0 degree offset,
and the boom angle remains unchanged. The load radius will:
A) Remain the same
B) Increase
C) Decrease
, D) Decrease 1 foot for each degree offset Answer: B Increasing jib offset
moves the load point further from the crane's center of rotation, increasing the
effective load radius even though boom angle remains constant .
7. Unattended Crane Procedure
Question: When leaving telescopic boom cranes unattended overnight or for
longer periods, the boom should be:
A) Left at operating angle
B) Fully extended to relieve pressure
C) Fully retracted and stowed
D) Pointed downwind
Answer: C – The boom should be fully retracted and stowed to reduce wind
load, prevent hydraulic creep, and minimize safety risks when unattended .
8. Pick and Carry Operations
Question: According to OSHA 1926 Subpart CC, who determines if a crane can
be used for pick and carry operations?
A) The site supervisor
B) The crane operator
C) The manufacturer
D) The qualified person
Answer: C – The manufacturer determines whether a specific crane model is
designed and approved for pick-and-carry operations .
SWING CAB (TLL) EXAM QUESTIONS
WITH CORRECT ANSWERS LATEST
UPDATE
1. Leveling Procedure
Question: To properly level a crane, you set a carpenter's level on the turntable
or upper works, level the crane to within 1%, then swing the crane:
A) 90 degrees and recheck level
B) Over the front
C) 180 degrees
D) Over the rear and recheck
Answer: A – After initial leveling, swing the crane 90 degrees and recheck level
to ensure the crane is level in all quadrants of rotation .
2. Outrigger Visual Contact
Question: During crane setup when an operator extends the crane's outriggers,
the operator should:
A) Check tire pressure first
B) Make visual contact with the outriggers or post a signal person
C) Sound the horn continuously
, D) Place all blocking on the ground before extending
Answer: B – The operator must maintain visual contact with outriggers or post a
signal person to ensure safe extension and prevent crushing hazards .
3. Outrigger Setup on Uneven Ground
Question: A crane is operating with a long boom, on outriggers, on uneven
ground. Under these conditions, what is the most important action?
A) Extend outriggers to maximum reach
B) Block under the float or pad to achieve a 90degree angle between the
cylinder rod and the float
C) Lower the boom to reduce leverage
D) Use only three outriggers for stability Answer: B – Blocking must
create a 90-degree angle between the cylinder rod and the float/pad to ensure
proper load distribution and prevent sideloading on the hydraulic cylinder .
4. Outrigger Float Requirements
Question: According to OSHA 1926 Subpart CC, when must floats/pads be
fastened to the outrigger/stabilizers?
A) Only during travel
B) When they are in use
C) Only when operating on soft ground
D) At all times, even when stowed
,Answer: B – OSHA requires that floats/pads be fastened to outriggers when
they are in use to prevent accidental displacement during lifting operations .
5. Outrigger Beam Extension
Question: When is it permissible for outrigger beams to be less than fully
extended?
A) When a structure blocks full extension
B) When lifting over the retracted outrigger beam
C) Only when the manufacturer's procedures permit
D) When operating on firm, level ground Answer: C Outrigger beams
may only be less than fully extended when the manufacturer's procedures
specifically permit this configuration .
DOMAIN 2: OPERATIONS (Approximately 23% of test)
6. Jib Offset Effect
Question: A crane's jib is offset 15 degrees versus its original 0 degree offset,
and the boom angle remains unchanged. The load radius will:
A) Remain the same
B) Increase
C) Decrease
, D) Decrease 1 foot for each degree offset Answer: B Increasing jib offset
moves the load point further from the crane's center of rotation, increasing the
effective load radius even though boom angle remains constant .
7. Unattended Crane Procedure
Question: When leaving telescopic boom cranes unattended overnight or for
longer periods, the boom should be:
A) Left at operating angle
B) Fully extended to relieve pressure
C) Fully retracted and stowed
D) Pointed downwind
Answer: C – The boom should be fully retracted and stowed to reduce wind
load, prevent hydraulic creep, and minimize safety risks when unattended .
8. Pick and Carry Operations
Question: According to OSHA 1926 Subpart CC, who determines if a crane can
be used for pick and carry operations?
A) The site supervisor
B) The crane operator
C) The manufacturer
D) The qualified person
Answer: C – The manufacturer determines whether a specific crane model is
designed and approved for pick-and-carry operations .
