IRONWORKER – NCCER IRONWORKING
CERTIFICATION EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES
2025|2026 Q&A
1.
Which of the following is the primary safety concern when
working at heights on steel structures?
a) Weather conditions
b) Fall protection
c) Lifting capacity of the crane
d) Type of bolts used
Correct Answer: b – Fall protection is the top safety requirement to
prevent serious injury from falls.
2.
When connecting steel members, which tool is commonly used to
align bolt holes?
a) Crescent wrench
b) Spud wrench
c) Drift punch
d) Pipe wrench
Correct Answer: b – A spud wrench has a tapered handle for aligning
holes before bolting.
3.
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,OSHA requires fall protection for ironworkers working at what
height or higher?
a) 4 feet
b) 6 feet
c) 15 feet
d) 20 feet
Correct Answer: c – For structural steel erection, OSHA requires
fall protection at 15 feet or higher.
4.
What is the purpose of a tag line when hoisting steel members?
a) To secure the load permanently
b) To control load movement
c) To signal the crane operator
d) To measure alignment
Correct Answer: b – Tag lines are ropes used to control the load’s
movement
during hoisting.
5.
Which type of drawing shows the details of a specific connection or
part of the structure?
a) General arrangement drawing
b) Site plan
c) Detail drawing
d) Foundation plan
Correct Answer: c – Detail drawings provide exact connection
information for fabrication and erection.
6.
What is the main purpose of using temporary bolts (drift
pins/bolts) during steel erection?
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,a) To replace welding
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, b) To make the structure permanent
c) To hold members in place before final bolting/welding
d) To attach safety cables
Correct Answer: c – Temporary bolts secure members until
permanent connections are made.
7.
Which knot is most commonly used by ironworkers to hoist tools
and small equipment?
a) Square knot
b) Clove hitch
c) Bowline knot
d) Half hitch
Correct Answer: c – The bowline knot creates a secure loop that won’t
slip, ideal
for hoisting.
8.
What is the proper hand signal for “hoist” when directing a crane?
a) Arm extended, palm up, moving hand in circles
b) Arm extended, forefinger pointing up, moving hand in small
circles
c) Both arms raised straight up
d) Thumb pointing up
Correct Answer: b – Standard crane hand signal for “hoist” is finger
up, hand
circling.
9.
Which welding process is most commonly used in ironworking field
connections?
a) Oxy-acetylene welding
https://www.stuvia.com/user/MBOFFIN
CERTIFICATION EXAM QUESTIONS AND
CORRECT ANSWERS (VERIFIED
ANSWERS) PLUS RATIONALES
2025|2026 Q&A
1.
Which of the following is the primary safety concern when
working at heights on steel structures?
a) Weather conditions
b) Fall protection
c) Lifting capacity of the crane
d) Type of bolts used
Correct Answer: b – Fall protection is the top safety requirement to
prevent serious injury from falls.
2.
When connecting steel members, which tool is commonly used to
align bolt holes?
a) Crescent wrench
b) Spud wrench
c) Drift punch
d) Pipe wrench
Correct Answer: b – A spud wrench has a tapered handle for aligning
holes before bolting.
3.
https://www.stuvia.com/user/MBOFFIN
,OSHA requires fall protection for ironworkers working at what
height or higher?
a) 4 feet
b) 6 feet
c) 15 feet
d) 20 feet
Correct Answer: c – For structural steel erection, OSHA requires
fall protection at 15 feet or higher.
4.
What is the purpose of a tag line when hoisting steel members?
a) To secure the load permanently
b) To control load movement
c) To signal the crane operator
d) To measure alignment
Correct Answer: b – Tag lines are ropes used to control the load’s
movement
during hoisting.
5.
Which type of drawing shows the details of a specific connection or
part of the structure?
a) General arrangement drawing
b) Site plan
c) Detail drawing
d) Foundation plan
Correct Answer: c – Detail drawings provide exact connection
information for fabrication and erection.
6.
What is the main purpose of using temporary bolts (drift
pins/bolts) during steel erection?
https://www.stuvia.com/user/MBOFFIN
,a) To replace welding
https://www.stuvia.com/user/MBOFFIN
, b) To make the structure permanent
c) To hold members in place before final bolting/welding
d) To attach safety cables
Correct Answer: c – Temporary bolts secure members until
permanent connections are made.
7.
Which knot is most commonly used by ironworkers to hoist tools
and small equipment?
a) Square knot
b) Clove hitch
c) Bowline knot
d) Half hitch
Correct Answer: c – The bowline knot creates a secure loop that won’t
slip, ideal
for hoisting.
8.
What is the proper hand signal for “hoist” when directing a crane?
a) Arm extended, palm up, moving hand in circles
b) Arm extended, forefinger pointing up, moving hand in small
circles
c) Both arms raised straight up
d) Thumb pointing up
Correct Answer: b – Standard crane hand signal for “hoist” is finger
up, hand
circling.
9.
Which welding process is most commonly used in ironworking field
connections?
a) Oxy-acetylene welding
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