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NCCCO CORE EXAM PREP 2026/2027 | 150 Questions |
Grade A | Pass Guaranteed - A+ Graded
SECTION 1: OSHA Regulations - 1926 Subpart CC (Q1-Q25)
Q1: Under OSHA 1926.1400, which of the following activities is NOT covered by
Subpart CC (Cranes and Derricks in Construction)? A. Routine maintenance on a
crane that does not involve hoisting B. Assembly of a tower crane at a construction
site C. Operation of a mobile crane to lift construction materials D. Disassembly of a
crawler crane at a construction site
A. Routine maintenance on a crane that does not involve hoisting [CORRECT]
B. Assembly of a tower crane at a construction site
C. Operation of a mobile crane to lift construction materials
D. Disassembly of a crawler crane at a construction site
Correct Answer: A
Rationale: OSHA 1926.1400(c)(17) explicitly excludes "routine maintenance" that
does not involve hoisting from Subpart CC coverage. Assembly, disassembly, and
hoisting operations are all covered activities. This is a common point of confusion on
the NCCCO Core Exam.
Q2: A construction employer is using a crane to hoist personnel. According to OSHA
1926.1431, which of the following is a mandatory requirement? A. The personnel
platform must be designed by a registered professional engineer familiar with crane
operations B. A trial lift with the unoccupied platform must be conducted prior to
hoisting personnel C. The crane operator must have at least 10 years of experience D.
Personnel may be hoisted without a direct communication system if hand signals are
visible
A. The personnel platform must be designed by a registered professional engineer
familiar with crane operations
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B. A trial lift with the unoccupied platform must be conducted prior to hoisting
personnel [CORRECT]
C. The crane operator must have at least 10 years of experience
D. Personnel may be hoisted without a direct communication system if hand signals
are visible
Correct Answer: B
Rationale: OSHA 1926.1431(h) requires a trial lift with the unoccupied personnel
platform to test rigging and verify clearance. While platforms must meet design
standards, they need not be designed by an RPE specifically "familiar with crane
operations." There is no 10-year experience mandate, and direct communication is
always required.
Q3: According to OSHA 1926.1402, what is the minimum clearance distance required
when operating a crane near overhead power lines rated at 50 kV or less, unless the
utility owner has de-energized and visibly grounded the lines? A. 10 feet B. 15 feet C.
20 feet D. 25 feet
A. 10 feet
B. 15 feet
C. 20 feet [CORRECT]
D. 25 feet
Correct Answer: C
Rationale: OSHA 1926.1402 Table 1 mandates a minimum 20-foot clearance for
power lines up to 50 kV. For lines over 50 kV, the clearance increases by 0.4 inches
per kV over 50 kV. Many candidates incorrectly select 10 feet (the old standard) or
confuse this with the 15-foot planning requirement.
,3
Q4: According to OSHA 1926.1402, when operating a crane near overhead power
lines rated over 50 kV but not exceeding 200 kV, the minimum clearance distance is
determined by which formula? A. 15 feet plus 0.4 inch per kV over 50 kV B. 20 feet
plus 0.4 inch per kV over 50 kV [CORRECT] C. 25 feet plus 0.5 inch per kV over 50 kV
D. 20 feet plus 0.5 inch per kV over 50 kV
A. 15 feet plus 0.4 inch per kV over 50 kV
B. 20 feet plus 0.4 inch per kV over 50 kV [CORRECT]
C. 25 feet plus 0.5 inch per kV over 50 kV
D. 20 feet plus 0.5 inch per kV over 50 kV
Correct Answer: B
Rationale: OSHA 1926.1402 Table 1 specifies that for power lines over 50 kV up to
200 kV, the minimum clearance is 20 feet plus 0.4 inch for each kV over 50 kV. The
base distance is 20 feet (not 15 or 25), and the increment is 0.4 inch per kV (not 0.5
inch). This formula is critical for NCCCO Core Exam calculations.
Q5: Under OSHA 1926.1401, who is responsible for providing ground conditions that
are firm, drained, and graded to a sufficient extent to support the crane and
associated equipment? A. The crane operator B. The controlling entity (typically the
general contractor) [CORRECT] C. The crane manufacturer D. The site safety manager
employed by the crane company
A. The crane operator
B. The controlling entity (typically the general contractor) [CORRECT]
C. The crane manufacturer
D. The site safety manager employed by the crane company
Correct Answer: B
Rationale: OSHA 1926.1401(b) places the responsibility for adequate ground
conditions on the "controlling entity," which is typically the general contractor or
prime contractor. The crane operator must assess ground conditions but is not
, 4
responsible for providing them. This is a frequently tested concept on the NCCCO
exam.
Q6: According to OSHA 1926.1427, when must an operator be certified or qualified
to operate equipment covered by Subpart CC? A. Within 90 days of hire B. Before
operating the equipment, with very limited exceptions [CORRECT] C. Within 30 days
of the first lift D. After completing 1,000 hours of supervised operation
A. Within 90 days of hire
B. Before operating the equipment, with very limited exceptions [CORRECT]
C. Within 30 days of the first lift
D. After completing 1,000 hours of supervised operation
Correct Answer: B
Rationale: OSHA 1926.1427(a) requires operators to be certified or qualified before
operating equipment, except during training under direct supervision and other
limited exceptions. The November 10, 2018 compliance deadline has passed, and the
90-day/30-day grace periods were transitional provisions that no longer apply.
Q7: A crane operator is performing assembly/disassembly work. According to OSHA
1926.1404, who must be present and qualified to supervise the operation? A. Any
certified crane operator B. The site safety manager C. An A/D
(Assembly/Disassembly) director who meets the competency requirements
[CORRECT] D. The project engineer
A. Any certified crane operator
B. The site safety manager
C. An A/D (Assembly/Disassembly) director who meets the competency requirements
[CORRECT]
D. The project engineer
NCCCO CORE EXAM PREP 2026/2027 | 150 Questions |
Grade A | Pass Guaranteed - A+ Graded
SECTION 1: OSHA Regulations - 1926 Subpart CC (Q1-Q25)
Q1: Under OSHA 1926.1400, which of the following activities is NOT covered by
Subpart CC (Cranes and Derricks in Construction)? A. Routine maintenance on a
crane that does not involve hoisting B. Assembly of a tower crane at a construction
site C. Operation of a mobile crane to lift construction materials D. Disassembly of a
crawler crane at a construction site
A. Routine maintenance on a crane that does not involve hoisting [CORRECT]
B. Assembly of a tower crane at a construction site
C. Operation of a mobile crane to lift construction materials
D. Disassembly of a crawler crane at a construction site
Correct Answer: A
Rationale: OSHA 1926.1400(c)(17) explicitly excludes "routine maintenance" that
does not involve hoisting from Subpart CC coverage. Assembly, disassembly, and
hoisting operations are all covered activities. This is a common point of confusion on
the NCCCO Core Exam.
Q2: A construction employer is using a crane to hoist personnel. According to OSHA
1926.1431, which of the following is a mandatory requirement? A. The personnel
platform must be designed by a registered professional engineer familiar with crane
operations B. A trial lift with the unoccupied platform must be conducted prior to
hoisting personnel C. The crane operator must have at least 10 years of experience D.
Personnel may be hoisted without a direct communication system if hand signals are
visible
A. The personnel platform must be designed by a registered professional engineer
familiar with crane operations
,2
B. A trial lift with the unoccupied platform must be conducted prior to hoisting
personnel [CORRECT]
C. The crane operator must have at least 10 years of experience
D. Personnel may be hoisted without a direct communication system if hand signals
are visible
Correct Answer: B
Rationale: OSHA 1926.1431(h) requires a trial lift with the unoccupied personnel
platform to test rigging and verify clearance. While platforms must meet design
standards, they need not be designed by an RPE specifically "familiar with crane
operations." There is no 10-year experience mandate, and direct communication is
always required.
Q3: According to OSHA 1926.1402, what is the minimum clearance distance required
when operating a crane near overhead power lines rated at 50 kV or less, unless the
utility owner has de-energized and visibly grounded the lines? A. 10 feet B. 15 feet C.
20 feet D. 25 feet
A. 10 feet
B. 15 feet
C. 20 feet [CORRECT]
D. 25 feet
Correct Answer: C
Rationale: OSHA 1926.1402 Table 1 mandates a minimum 20-foot clearance for
power lines up to 50 kV. For lines over 50 kV, the clearance increases by 0.4 inches
per kV over 50 kV. Many candidates incorrectly select 10 feet (the old standard) or
confuse this with the 15-foot planning requirement.
,3
Q4: According to OSHA 1926.1402, when operating a crane near overhead power
lines rated over 50 kV but not exceeding 200 kV, the minimum clearance distance is
determined by which formula? A. 15 feet plus 0.4 inch per kV over 50 kV B. 20 feet
plus 0.4 inch per kV over 50 kV [CORRECT] C. 25 feet plus 0.5 inch per kV over 50 kV
D. 20 feet plus 0.5 inch per kV over 50 kV
A. 15 feet plus 0.4 inch per kV over 50 kV
B. 20 feet plus 0.4 inch per kV over 50 kV [CORRECT]
C. 25 feet plus 0.5 inch per kV over 50 kV
D. 20 feet plus 0.5 inch per kV over 50 kV
Correct Answer: B
Rationale: OSHA 1926.1402 Table 1 specifies that for power lines over 50 kV up to
200 kV, the minimum clearance is 20 feet plus 0.4 inch for each kV over 50 kV. The
base distance is 20 feet (not 15 or 25), and the increment is 0.4 inch per kV (not 0.5
inch). This formula is critical for NCCCO Core Exam calculations.
Q5: Under OSHA 1926.1401, who is responsible for providing ground conditions that
are firm, drained, and graded to a sufficient extent to support the crane and
associated equipment? A. The crane operator B. The controlling entity (typically the
general contractor) [CORRECT] C. The crane manufacturer D. The site safety manager
employed by the crane company
A. The crane operator
B. The controlling entity (typically the general contractor) [CORRECT]
C. The crane manufacturer
D. The site safety manager employed by the crane company
Correct Answer: B
Rationale: OSHA 1926.1401(b) places the responsibility for adequate ground
conditions on the "controlling entity," which is typically the general contractor or
prime contractor. The crane operator must assess ground conditions but is not
, 4
responsible for providing them. This is a frequently tested concept on the NCCCO
exam.
Q6: According to OSHA 1926.1427, when must an operator be certified or qualified
to operate equipment covered by Subpart CC? A. Within 90 days of hire B. Before
operating the equipment, with very limited exceptions [CORRECT] C. Within 30 days
of the first lift D. After completing 1,000 hours of supervised operation
A. Within 90 days of hire
B. Before operating the equipment, with very limited exceptions [CORRECT]
C. Within 30 days of the first lift
D. After completing 1,000 hours of supervised operation
Correct Answer: B
Rationale: OSHA 1926.1427(a) requires operators to be certified or qualified before
operating equipment, except during training under direct supervision and other
limited exceptions. The November 10, 2018 compliance deadline has passed, and the
90-day/30-day grace periods were transitional provisions that no longer apply.
Q7: A crane operator is performing assembly/disassembly work. According to OSHA
1926.1404, who must be present and qualified to supervise the operation? A. Any
certified crane operator B. The site safety manager C. An A/D
(Assembly/Disassembly) director who meets the competency requirements
[CORRECT] D. The project engineer
A. Any certified crane operator
B. The site safety manager
C. An A/D (Assembly/Disassembly) director who meets the competency requirements
[CORRECT]
D. The project engineer
