What’s included Learn the material: Structural Steel (C-51) Study Guide Book Pass the test: Structural Steel (C-51) Practice Exam What this covers Per the state's classification, a C-51 contractor "fabricates and erects structural steel shapes and plates of structural steel, including the riveting, welding, rigging and metal roofing systems necessary to perform this work." This printed book covers the subjects the state tests. See the official CSLB C-51 classification. Sample questions — Try our free practice test When tightening bolts in a connection on posts and columns on a high rise, the proper sequence is:A. From the outermost bolt · ✓ B. From the middle · C. From any location · D. All of the above 414C refers to:A. Screws · B. Steel posts · ✓ C. Bolts · D. Steel columns A maul is used for:A. Driving bull pins and drift pins into connection holes · B. Straightening bent material · C. Hitting steel members into place · ✓ D. All of the above When tightening bolts in a connection on posts and columns on a high rise, the proper sequence is:A. from the outermost bolt · ✓ B. from the middle · C. from any location · D. all of the above Until they have been certified by a DOSH approved certifying agent, cranes with a capacity greater than ___ tons should not be used.A. 1 · B. 2 · ✓ C. 3 · D. 4 Acetylene torch pressure should always be kept below:A. 10 psi · ✓ B. 15 psi · C. 20 psi · D. 30 psi