NCCCO CORE PRACTICE EXAM 2026/2027 | 150 Questions |
Grade A | Pass Guaranteed - A+ Graded
SECTION 1: OSHA Regulations - 1926 Subpart CC (Q1-Q25)
Q1: A crane operator is setting up near energized power lines rated at 138 kV. According
to OSHA 1926.1406 Table A, what is the minimum approach distance required?
A. 10 feet
B. 13 feet 10 inches [CORRECT]
C. 15 feet
D. 20 feet
Correct Answer: B
Rationale: OSHA 1926.1406 Table A requires 10 feet plus 0.4 inches per kV over 50 kV
for lines rated 50 kV to 200 kV. For 138 kV, this calculates to approximately 13 feet 10
inches. Ten feet applies to lines under 50 kV, 15 feet applies to lines over 200 kV to 350
kV, and 20 feet is not a standard Table A value.
Q2: An operator is assembling a lattice boom crane. OSHA requires that
assembly/disassembly operations be directed by which of the following?
A. A competent person designated as the A/D director who meets the requirements of
1926.1404 [CORRECT]
B. The crane operator alone
C. Any qualified rigger on site
D. The site safety manager only
Correct Answer: A
Rationale: OSHA 1926.1404 requires a dedicated assembly/disassembly (A/D) director
who is a competent person and meets specific criteria to oversee these operations. The
crane operator may assist but is not required to direct the entire operation, and not every
rigger or safety manager qualifies.
Q3: Which OSHA standard requires crane operators in construction to be certified by an
accredited certifying body such as NCCCO?
A. 1926.1427 [CORRECT]
B. 1926.1428
,C. 1926.1412
D. 1926.1406
Correct Answer: A
Rationale: OSHA 1926.1427 establishes the operator qualification and certification
requirements for cranes in construction, mandating certification by an accredited body.
Standard 1926.1428 covers signal person qualifications, 1926.1412 covers inspections,
and 1926.1406 covers power line safety.
Q4: During a monthly inspection, a wire rope is found to have 7 broken wires randomly
distributed in one rope lay on a standard 6x19 classification rope. According to OSHA
1926.1413, what action is required?
A. The wire rope must be removed from service immediately [CORRECT]
B. The wire rope may remain in service until the annual inspection
C. The wire rope may remain in service if the broken wires are in different strands
D. The wire rope must be replaced only if bird caging is also present
Correct Answer: A
Rationale: OSHA 1926.1413 mandates immediate removal of wire rope from service
when 6 or more randomly distributed broken wires are found in one rope lay on standard
wire rope. Seven broken wires exceeds this threshold, making the rope unsafe for
continued use.
Q5: A signal person is needed for a blind lift operation. Under OSHA 1926.1428, what
qualification is required?
A. The signal person must be qualified through an oral/written test and practical
demonstration [CORRECT]
B. The signal person must be a licensed crane operator
C. The signal person must have at least 5 years of construction experience
D. The signal person must be approved by the local building department
Correct Answer: A
Rationale: OSHA 1926.1428 requires signal persons to be qualified through evaluation
via an oral/written test and a practical demonstration of signaling competency. Years of
experience or operator licensure are not specified requirements in the standard.
Q6: OSHA 1926.1412 requires which of the following inspection frequencies for mobile
cranes in construction?
,A. Pre-shift (daily), monthly, and annual inspections [CORRECT]
B. Daily and annual inspections only
C. Weekly and monthly inspections only
D. Pre-shift inspections only
Correct Answer: A
Rationale: OSHA 1926.1412 specifies a three-tier inspection system: pre-shift (daily)
inspections by the operator, monthly documented inspections, and annual documented
inspections conducted by a competent person. This comprehensive system ensures
ongoing equipment safety.
Q7: An operator notices a hydraulic leak during the pre-shift inspection. According to
OSHA 1926.1412, what is the required action?
A. The deficiency must be corrected before the equipment is used [CORRECT]
B. The equipment may be used with reduced capacity
C. The operator must notify the site supervisor but may continue operating
D. The deficiency must be documented but can be repaired at the end of the shift
Correct Answer: A
Rationale: OSHA 1926.1412 requires that any deficiency affecting safe operation
discovered during inspection must be corrected before the equipment is placed in
service. Operating with known safety deficiencies violates the standard and creates
hazardous conditions.
Q8: Which OSHA standard requires the ground to be firm, drained, and graded to support
the equipment during crane operations?
A. 1926.1403 [CORRECT]
B. 1926.1406
C. 1926.1412
D. 1926.1427
Correct Answer: A
Rationale: OSHA 1926.1403 specifically requires employers to ensure ground conditions
are firm, drained, and graded to support the equipment in accordance with manufacturer
specifications. Standard 1926.1406 addresses power lines, 1926.1412 addresses
inspections, and 1926.1427 addresses operator certification.
, Q9: During operation, the crane's load moment indicator (LMI) malfunctions. Under
OSHA 1926.1417, what must the operator do?
A. Cease operations and notify the employer of the malfunction [CORRECT]
B. Continue operating using manual load calculations
C. Reduce the rated capacity by 25% and continue
D. Operate only under the direct supervision of the site foreman
Correct Answer: A
Rationale: OSHA 1926.1417 requires operators to stop operations and report
malfunctions of safety devices such as the LMI to the employer. Continuing to operate
without a functioning LMI violates safety protocols and exposes personnel to overload
hazards.
Q10: OSHA 1926.1417 prohibits which of the following practices during crane
operation?
A. Leaving the controls while a load is suspended [CORRECT]
B. Using tag lines to control load rotation
C. Operating with outriggers fully extended
D. Using radio communication with a signal person
Correct Answer: A
Rationale: OSHA 1926.1417 explicitly prohibits operators from leaving the controls while
a load is suspended. Tag lines, fully extended outriggers, and radio communications are
all permitted and often required practices that enhance operational safety.
Q11: A crane is being used to hoist personnel. Which OSHA standard specifically
addresses this operation?
A. 1926.1431 [CORRECT]
B. 1926.1427
C. 1926.1406
D. 1926.1413
Correct Answer: A
Rationale: OSHA 1926.1431 contains specific requirements for hoisting personnel,
including platform design, attachment methods, and operational restrictions. Standard
1926.1427 covers operator certification, 1926.1406 covers power lines, and 1926.1413
covers wire rope inspection.
Grade A | Pass Guaranteed - A+ Graded
SECTION 1: OSHA Regulations - 1926 Subpart CC (Q1-Q25)
Q1: A crane operator is setting up near energized power lines rated at 138 kV. According
to OSHA 1926.1406 Table A, what is the minimum approach distance required?
A. 10 feet
B. 13 feet 10 inches [CORRECT]
C. 15 feet
D. 20 feet
Correct Answer: B
Rationale: OSHA 1926.1406 Table A requires 10 feet plus 0.4 inches per kV over 50 kV
for lines rated 50 kV to 200 kV. For 138 kV, this calculates to approximately 13 feet 10
inches. Ten feet applies to lines under 50 kV, 15 feet applies to lines over 200 kV to 350
kV, and 20 feet is not a standard Table A value.
Q2: An operator is assembling a lattice boom crane. OSHA requires that
assembly/disassembly operations be directed by which of the following?
A. A competent person designated as the A/D director who meets the requirements of
1926.1404 [CORRECT]
B. The crane operator alone
C. Any qualified rigger on site
D. The site safety manager only
Correct Answer: A
Rationale: OSHA 1926.1404 requires a dedicated assembly/disassembly (A/D) director
who is a competent person and meets specific criteria to oversee these operations. The
crane operator may assist but is not required to direct the entire operation, and not every
rigger or safety manager qualifies.
Q3: Which OSHA standard requires crane operators in construction to be certified by an
accredited certifying body such as NCCCO?
A. 1926.1427 [CORRECT]
B. 1926.1428
,C. 1926.1412
D. 1926.1406
Correct Answer: A
Rationale: OSHA 1926.1427 establishes the operator qualification and certification
requirements for cranes in construction, mandating certification by an accredited body.
Standard 1926.1428 covers signal person qualifications, 1926.1412 covers inspections,
and 1926.1406 covers power line safety.
Q4: During a monthly inspection, a wire rope is found to have 7 broken wires randomly
distributed in one rope lay on a standard 6x19 classification rope. According to OSHA
1926.1413, what action is required?
A. The wire rope must be removed from service immediately [CORRECT]
B. The wire rope may remain in service until the annual inspection
C. The wire rope may remain in service if the broken wires are in different strands
D. The wire rope must be replaced only if bird caging is also present
Correct Answer: A
Rationale: OSHA 1926.1413 mandates immediate removal of wire rope from service
when 6 or more randomly distributed broken wires are found in one rope lay on standard
wire rope. Seven broken wires exceeds this threshold, making the rope unsafe for
continued use.
Q5: A signal person is needed for a blind lift operation. Under OSHA 1926.1428, what
qualification is required?
A. The signal person must be qualified through an oral/written test and practical
demonstration [CORRECT]
B. The signal person must be a licensed crane operator
C. The signal person must have at least 5 years of construction experience
D. The signal person must be approved by the local building department
Correct Answer: A
Rationale: OSHA 1926.1428 requires signal persons to be qualified through evaluation
via an oral/written test and a practical demonstration of signaling competency. Years of
experience or operator licensure are not specified requirements in the standard.
Q6: OSHA 1926.1412 requires which of the following inspection frequencies for mobile
cranes in construction?
,A. Pre-shift (daily), monthly, and annual inspections [CORRECT]
B. Daily and annual inspections only
C. Weekly and monthly inspections only
D. Pre-shift inspections only
Correct Answer: A
Rationale: OSHA 1926.1412 specifies a three-tier inspection system: pre-shift (daily)
inspections by the operator, monthly documented inspections, and annual documented
inspections conducted by a competent person. This comprehensive system ensures
ongoing equipment safety.
Q7: An operator notices a hydraulic leak during the pre-shift inspection. According to
OSHA 1926.1412, what is the required action?
A. The deficiency must be corrected before the equipment is used [CORRECT]
B. The equipment may be used with reduced capacity
C. The operator must notify the site supervisor but may continue operating
D. The deficiency must be documented but can be repaired at the end of the shift
Correct Answer: A
Rationale: OSHA 1926.1412 requires that any deficiency affecting safe operation
discovered during inspection must be corrected before the equipment is placed in
service. Operating with known safety deficiencies violates the standard and creates
hazardous conditions.
Q8: Which OSHA standard requires the ground to be firm, drained, and graded to support
the equipment during crane operations?
A. 1926.1403 [CORRECT]
B. 1926.1406
C. 1926.1412
D. 1926.1427
Correct Answer: A
Rationale: OSHA 1926.1403 specifically requires employers to ensure ground conditions
are firm, drained, and graded to support the equipment in accordance with manufacturer
specifications. Standard 1926.1406 addresses power lines, 1926.1412 addresses
inspections, and 1926.1427 addresses operator certification.
, Q9: During operation, the crane's load moment indicator (LMI) malfunctions. Under
OSHA 1926.1417, what must the operator do?
A. Cease operations and notify the employer of the malfunction [CORRECT]
B. Continue operating using manual load calculations
C. Reduce the rated capacity by 25% and continue
D. Operate only under the direct supervision of the site foreman
Correct Answer: A
Rationale: OSHA 1926.1417 requires operators to stop operations and report
malfunctions of safety devices such as the LMI to the employer. Continuing to operate
without a functioning LMI violates safety protocols and exposes personnel to overload
hazards.
Q10: OSHA 1926.1417 prohibits which of the following practices during crane
operation?
A. Leaving the controls while a load is suspended [CORRECT]
B. Using tag lines to control load rotation
C. Operating with outriggers fully extended
D. Using radio communication with a signal person
Correct Answer: A
Rationale: OSHA 1926.1417 explicitly prohibits operators from leaving the controls while
a load is suspended. Tag lines, fully extended outriggers, and radio communications are
all permitted and often required practices that enhance operational safety.
Q11: A crane is being used to hoist personnel. Which OSHA standard specifically
addresses this operation?
A. 1926.1431 [CORRECT]
B. 1926.1427
C. 1926.1406
D. 1926.1413
Correct Answer: A
Rationale: OSHA 1926.1431 contains specific requirements for hoisting personnel,
including platform design, attachment methods, and operational restrictions. Standard
1926.1427 covers operator certification, 1926.1406 covers power lines, and 1926.1413
covers wire rope inspection.
