Erection License Exam 2 versions Prep: Actual
Questions with Verified Answers, OSHA Subpart R
Guide & AISC Standards Review | INSTANT PDF
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"Prepare for the Louisiana 7-36 Ornamental Iron and Structural Steel Erection trade exam with this
comprehensive 150-question practice set. This resource is tailored to the Louisiana State Licensing Board for
Contractors (LSLBC) requirements, covering essential topics such as OSHA 1926 Subpart R safety
regulations, structural steel stability, bolting and welding standards (AWS D1.1), and ornamental iron
fabrication.
Detailed coverage includes critical safety thresholds like the 15-foot fall protection rule, multi-tier lifting
(Christmas Treeing) limits, and anchor bolt requirements. Designed for contractors aiming for licensure on
commercial projects exceeding $50,000, this guide provides the technical explanations and verified answers needed
to master the 50-question, closed-book state assessment."
1. According to OSHA 1926.754, what is the maximum number of floors (or 48
feet) that can be left unfinished between the erection floor and the uppermost
permanent floor?
A. 2 floors
B. 8 floors
C. 4 floors
D. 12 floors
Explanation: OSHA safety standards limit the amount of unfinished "skeleton"
steel to 8 floors to ensure structural stability and manage fall risks.
,2. What is the minimum number of anchor bolts (rods) required for each
structural column per OSHA standards?
A. 2
B. 4
C. 6
D. 8
Explanation: OSHA 1926.755 requires a minimum of 4 anchor bolts per column
to prevent "base rotation" and ensure stability during the initial set.
3. Before steel erection begins, the "Controlling Contractor" must provide written
notification that the concrete in the footings has reached what percentage of its
intended minimum compressive strength?
A. 50%
B. 75%
C. 90%
D. 100%
Explanation: Steel cannot be bolted to "green" concrete; it must reach 75%
strength to safely support the heavy loads of the steel members and crane.
4. In structural bolting, a "Snug-Tight" connection is defined as:
A. Tightened with a torque wrench to 500 ft-lbs
B. The tightness attained by a few impacts of an impact wrench or the full effort
of an ironworker with a spud wrench
C. Hand-tight only
D. Any bolt with a washer
Explanation: Snug-tight is the baseline for all bolted joints, ensuring the "plies"
(plates) are in solid contact before final tensioning.
5. Which type of weld is most commonly used to join two pieces of metal at a
right angle (90 degrees)?
A. Butt weld
B. Fillet weld
C. Plug weld
D. Spot weld
Explanation: Fillet welds are the standard for joining T-joints, lap joints, and
corner joints in structural steel frames.
,6. What is the primary purpose of "Plumbing-Up" a steel building?
A. Ensuring the columns are perfectly vertical and the frame is square
B. Installing the water pipes
C. Leveling the dirt on the site
D. Painting the steel
Explanation: Plumbing-up uses cables and turnbuckles to pull the frame into
alignment before final bolting or welding occurs.
7. According to OSHA 1926.760, at what height are most ironworkers required to
use fall protection?
A. 6 feet
B. 10 feet
C. 15 feet
D. 30 feet
Explanation: While general construction is 6 feet, Steel Erection (Subpart R)
has a threshold of 15 feet for most activities (connectors and deckers have different
rules up to 30 feet).
8. What is the "Critical Lift" defined as in steel erection?
A. Any lift over 1 ton
B. A lift that exceeds 75% of the crane's rated capacity or involves multiple
cranes
C. Any lift performed in the rain
D. Lifting a beam to the second floor
Explanation: Critical lifts require a written safety plan and additional supervision
due to the high risk of crane failure or collapse.
9. When "Christmas Treeing" (Multi-tiering) beams, what is the maximum number
of members that can be lifted in a single assembly?
A. 3
B. 5
C. 10
D. Unlimited
Explanation: OSHA 1926.753(e) limits multi-tier lifting to 5 members to prevent
overloading the rigging and losing control of the load.
10. What is the minimum distance that "Shear Connectors" (Heading Studs)
should be from the edge of a beam?
, A. 1 inch
B. Not less than the diameter of the stud plus 1/8 inch
C. 6 inches
D. 12 inches
Explanation: Proper spacing ensures the stud has enough concrete coverage
to transfer the load between the steel beam and the concrete slab.
11. A "Spud Wrench" is a tool primarily used by ironworkers to:
A. Cut steel beams
B. Align bolt holes using the tapered handle and tighten bolts with the wrench
end
C. Measure the thickness of paint
D. Weld joints
Explanation: The tapered "spud" allows an ironworker to pry two heavy pieces
of steel until the bolt holes line up perfectly.
12. When using "Turn-of-Nut" tightening for high-strength bolts, what is the
primary indicator that the bolt is properly tensioned?
A. The bolt breaks
B. A click from the wrench
C. The nut is rotated a specific fraction of a turn (e.g., 1/3 or 1/2 turn) past snug-
tight
D. The washer turns red
Explanation: This manual method uses the physical stretching of the bolt to
ensure the required clamping force is achieved.
13. What is the "Controlling Contractor's" responsibility regarding site access?
B. Providing a firm, properly graded, and drained area for crane operations
A. Buying the ironworker's lunch
C. Providing the steel beams
D. Designing the welding joints
Explanation: Steel erection cannot happen safely if the crane is on soft or
unlevel ground; the GC/Controlling Contractor must prepare the pad.
14. In welding, what does "SMAW" stand for?
A. Small Metal Arc Welding
B. Super Manual Arc Welding