,1. A 90-ton hydraulic crane is configured with 120 ft of main boom and a 35 ft jib
offset at 20°. Per ASME B30.5, which deduction must be applied to gross capacity?
A. Only the jib weight as listed in the jib deduction chart.
B. The jib, hook block, and all rigging below the boom tip.
C. The combined weight of jib, auxiliary head, and any stowed attachments.
D. No deduction is required if the jib is not loaded.
Answer: C. The combined weight of jib, auxiliary head, and any stowed
attachments.
ASME B30.5 requires deducting the weight of the jib, auxiliary boom head, and any
stowed attachments from gross capacity. Option A is incomplete; B incorrectly includes
rigging below the tip; D is false because stowed attachments still add moment.
2. Two 1-inch wire rope slings at a 60° included angle support a 10,000 lb load. What
is the tension in each sling leg?
A. 5,000 lb
B. 5,774 lb
C. 10,000 lb
D. 11,547 lb
Answer: B. 5,774 lb
Tension = (Load / 2) / sin(60°) = 5,.866 = 5,774 lb. A ignores angle factor; C
equals total load; D is the tension for a 30° angle.
3. Under 520 CMR 6.00, a 2A licensed operator may operate which additional
equipment without a separate license?
A. Any crane under 5 tons capacity.
B. Only equipment within the same hoisting machinery class.
C. Aerial lifts and forklifts.
D. Any equipment if supervised by a 1A operator.
Answer: B. Only equipment within the same hoisting machinery class.
Massachusetts 520 CMR 6.00 restricts 2A licensees to the specific hoisting machinery
class for which they are licensed. A, C, and D misstate scope; aerial lifts and forklifts
require separate certifications.
Page 2
,4. A crane's outrigger float is 24 in × 24 in and exerts 60,000 lb. What is the ground
bearing pressure?
A. 104 psi
B. 1,250 psi
C. 2,500 psi
D. 4,167 psi
Answer: A. 104 psi
Area = 24 in × 24 in = 576 in²; pressure = 60,000 lb / 576 in² 104 psi. B, C, and D result
from erroneous area calculations or unit errors.
5. During a blind lift, the signal person must maintain communication. Which
method is required when the operator cannot see the load?
A. Hand signals relayed by a spotter.
B. Radio communication with a dedicated signal person.
C. Voice commands from the rigger.
D. Two-way radios used only if hand signals fail.
Answer: B. Radio communication with a dedicated signal person.
OSHA 1926.1419 requires a dedicated signal person with radio communication for
blind lifts. Hand signals (A) are inadequate when line of sight is lost; voice commands
(C) lack precision; D contradicts the standard's hierarchy.
6. A crane's annual inspection is overdue by 45 days. Under OSHA 1926.1412, what
is the required action?
A. Continue operation if daily checks are current.
B. Perform a monthly inspection instead.
C. Remove the crane from service until inspected.
D. Operate only at reduced capacity.
Answer: C. Remove the crane from service until inspected.
OSHA 1926.1412(f) mandates that cranes with overdue annual inspections be removed
from service. A, B, and D are non-compliant alternatives that do not satisfy the
regulation.
Page 3
, 7. A load is rigged with a single sling in a choker hitch. What is the approximate
efficiency compared to a vertical hitch?
A. 100%
B. 75%
C. 50%
D. 25%
Answer: B. 75%
A choker hitch typically provides about 75% efficiency due to the bend and
compression. A, C, and D misstate the standard efficiency loss.
8. Which condition requires immediate shutdown of a crane operation under 520
CMR 6.00?
A. Wind speed exceeding 20 mph.
B. A load swing of 5 degrees.
C. Any visible crack in a structural weld.
D. Operator fatigue after 4 hours.
Answer: C. Any visible crack in a structural weld.
520 CMR 6.00 and ASME B30.5 require immediate shutdown for structural cracks. A,
B, and D may require caution but are not automatic shutdown triggers unless specified
in the load chart or site plan.
9. A crane is operating near 115 kV power lines. What is the minimum required
clearance for uninsulated equipment under OSHA 1926.1408?
A. 10 ft
B. 15 ft
C. 20 ft
D. 25 ft
Answer: B. 15 ft
OSHA Table A in 1926.1408 specifies 15 ft for 115 kV. A is for lower voltages; C and D
exceed the minimum but are not the required clearance.
Page 4
offset at 20°. Per ASME B30.5, which deduction must be applied to gross capacity?
A. Only the jib weight as listed in the jib deduction chart.
B. The jib, hook block, and all rigging below the boom tip.
C. The combined weight of jib, auxiliary head, and any stowed attachments.
D. No deduction is required if the jib is not loaded.
Answer: C. The combined weight of jib, auxiliary head, and any stowed
attachments.
ASME B30.5 requires deducting the weight of the jib, auxiliary boom head, and any
stowed attachments from gross capacity. Option A is incomplete; B incorrectly includes
rigging below the tip; D is false because stowed attachments still add moment.
2. Two 1-inch wire rope slings at a 60° included angle support a 10,000 lb load. What
is the tension in each sling leg?
A. 5,000 lb
B. 5,774 lb
C. 10,000 lb
D. 11,547 lb
Answer: B. 5,774 lb
Tension = (Load / 2) / sin(60°) = 5,.866 = 5,774 lb. A ignores angle factor; C
equals total load; D is the tension for a 30° angle.
3. Under 520 CMR 6.00, a 2A licensed operator may operate which additional
equipment without a separate license?
A. Any crane under 5 tons capacity.
B. Only equipment within the same hoisting machinery class.
C. Aerial lifts and forklifts.
D. Any equipment if supervised by a 1A operator.
Answer: B. Only equipment within the same hoisting machinery class.
Massachusetts 520 CMR 6.00 restricts 2A licensees to the specific hoisting machinery
class for which they are licensed. A, C, and D misstate scope; aerial lifts and forklifts
require separate certifications.
Page 2
,4. A crane's outrigger float is 24 in × 24 in and exerts 60,000 lb. What is the ground
bearing pressure?
A. 104 psi
B. 1,250 psi
C. 2,500 psi
D. 4,167 psi
Answer: A. 104 psi
Area = 24 in × 24 in = 576 in²; pressure = 60,000 lb / 576 in² 104 psi. B, C, and D result
from erroneous area calculations or unit errors.
5. During a blind lift, the signal person must maintain communication. Which
method is required when the operator cannot see the load?
A. Hand signals relayed by a spotter.
B. Radio communication with a dedicated signal person.
C. Voice commands from the rigger.
D. Two-way radios used only if hand signals fail.
Answer: B. Radio communication with a dedicated signal person.
OSHA 1926.1419 requires a dedicated signal person with radio communication for
blind lifts. Hand signals (A) are inadequate when line of sight is lost; voice commands
(C) lack precision; D contradicts the standard's hierarchy.
6. A crane's annual inspection is overdue by 45 days. Under OSHA 1926.1412, what
is the required action?
A. Continue operation if daily checks are current.
B. Perform a monthly inspection instead.
C. Remove the crane from service until inspected.
D. Operate only at reduced capacity.
Answer: C. Remove the crane from service until inspected.
OSHA 1926.1412(f) mandates that cranes with overdue annual inspections be removed
from service. A, B, and D are non-compliant alternatives that do not satisfy the
regulation.
Page 3
, 7. A load is rigged with a single sling in a choker hitch. What is the approximate
efficiency compared to a vertical hitch?
A. 100%
B. 75%
C. 50%
D. 25%
Answer: B. 75%
A choker hitch typically provides about 75% efficiency due to the bend and
compression. A, C, and D misstate the standard efficiency loss.
8. Which condition requires immediate shutdown of a crane operation under 520
CMR 6.00?
A. Wind speed exceeding 20 mph.
B. A load swing of 5 degrees.
C. Any visible crack in a structural weld.
D. Operator fatigue after 4 hours.
Answer: C. Any visible crack in a structural weld.
520 CMR 6.00 and ASME B30.5 require immediate shutdown for structural cracks. A,
B, and D may require caution but are not automatic shutdown triggers unless specified
in the load chart or site plan.
9. A crane is operating near 115 kV power lines. What is the minimum required
clearance for uninsulated equipment under OSHA 1926.1408?
A. 10 ft
B. 15 ft
C. 20 ft
D. 25 ft
Answer: B. 15 ft
OSHA Table A in 1926.1408 specifies 15 ft for 115 kV. A is for lower voltages; C and D
exceed the minimum but are not the required clearance.
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