OSHA Steel Erection Questions and Answers Already Passed

OSHA Steel Erection Questions and Answers Already Passed which of the following are examples of activities that are covered by the OSHA Steel Erections standards? bolting and bracing joists installing metal decking welding structural steel installing ornamental iron which of the following are common potential hazards that result in fatalities during steel erection accidents? being struck by an object while working under a load walking on unsecured decking being struck while landing a load or making a connection You are performing a steel erection activity. Which of the following is a safety precaution you can take to reduce your risk of injury? avoid walking on any unsecured beams or joists ensure fall protection systems are properly installed Before proceeding with steel erection, the anchor bolt repairs, replacements and modifications must be completed with the approval of the _______. project structural engineer who is responsible for making sure there are adequate access roads into and through the site for the safe delivery and movement of derricks, cranes, trucks, and other equipment and materials? the controlling contractor The _______ must ensure that site layout requirements like the means and methods for pedestrian and vehicular control are provided and maintained before any steel erection activity is performed. controlling contractor All hoisting operations must be pre-planned to ensure which of the following? routes used for hoisting loads do not require employees to work directly below a suspended load The most common cause of fatalities associated with steel erection is: improper use of fall protection ?? Before each shift, cranes used in steel erection activities must be inspected by a/ an competent person which of these items must be checked during a visual inspection of the crane? control and drive mechanisms safety devices hooks and latches hoisting equipment which of the following statements correctly describe how crane inspections must be performed? a competent person must visually inspect cranes cranes must be inspected before each shift The ____ is responsible for all operations under the operator's direct control. crane operator What device may be used to hoist personnel? A personnel platform If you must work under suspended loads, what special precautions need to be taken? loads must be rigged to prevent accidental dislodgment hooks with self-closing safety latches a qualified rigger must rig all loads Which of the following is a requirement when using a multiple lift rigging assembly? only beams and similar structural members may be lifted all employees involved in the lift must be trained in the procedures members must be set from the bottom up What must be done to keep the loads from shifting when using a multiple lift rigging assembly? attach the members at their center of gravity rig the members from the top down _____ is/are the second leading cause of fatalities in the steel erection industry. Structural Collapses What is the max number of floors or feet allowed for unfinished bolting or welding above the foundation or upper-most permanently secured floor? 4 floors, or 48 feet safety nets or fully planked or decked floor must be maintained directly under any erection work being performed, within two stories or ___ feet, whichever is less 30 When should plumbing up equipment be installed? before loading up the structure with construction material Who determines when plumbing-up equipment will need to be installed to ensure the stability of the structure? A competent person Which of the following should you do when working with metal decking bundles? secure any items placed on top of the bundles about to be hoisted when placing bundles, land them on framing members for proper support what requirement must be followed in situations where openings are prevented from being decked over due to large size, configuration or other structural design? fall protection requirements must be followed which of the following are requirements for covers used for roof and flooring openings? able to support twice the weight of the load placed on them secured to prevent accidental displacement painted with high visibility paint or marked to warn employees columns must be set on which of the following surfaces? grounted leveling plates shim packs leveling nuts which of the following are contributing factors to structural collapses? inadequate anchoring rod installation inadequate bolt installation How many anchor rods or bolts must be used to anchor columns in order to ensure stability? At least 4 The _____ ______ must provide approval for anchor rods or bolts to be repaired, replaced, or field-modified. structural engineer during the final placement of solid web structural members, when may the load be released from the hoisting line? only after the members are secured with two bolt at each connection when solid web structural members are used as diagonal bracing, they must be secured by at least ___ bolt(s) per connection. 1 When a double connection is used, how many bolts must remain connection to the first member unless a shop attached or field-attached seat or equivalent connection device is supplied to secure the first member and prevent the column from being displaced? at least one bolt How many inches must perimeter columns extend above the finished floor to allow the installation of perimeter safety cable before the next tier is erected? 48 joists must be field-bolted when steel joists are used in which of the following conditions? columns are framed in only 2 direction with solid web structural steel members ??? what should you do when a steel joist is not installed directly at the column? use a means of stabilizing the joist on both sides near initial attachment of joists in bay of ___ feet or more must be field-bolted to the structure. 40 How must joist be attached to the support structure? attach them immediately upon placement in the final erection position each joist must be attached before any additional joists are placed joist must be attached at least at one end on both sides of the seat when erecting steel joists that are over 60 feet in length what requirements must be followed before releasing the hoisting cables? both end of joist must be permanently attached bridging requirements must be met What requirements must be met when erection bridging is necessary for open web steel joints? -bolted diagonal erection bridging must be used -erection drawings must indicate the bridging shop installed bridging clips must be used where the bridging bolts to the joist bridging attachments must protrude above the top chord of the joist ???? For which types of steel joist must there be two rows of bolted diagonal erection bridging installed near the third points? joists between 60 & 100 feet No construction loads are allowed on the joist until which two conditions are met? all bridging has been installed and anchored all joist bearing ends are attached When placing a bundle of joist bridging on steel joist, what requirements must you follow? the weight of the bundle may not exceed 1000 pounds the edge of the bundle must be within one foot of the secured end of the joist What percentage of industrial building in steel erection are system-engineered? more than 50% at least ___ anchor rods or bolts must be used to anchor each structural column in a system-engineered metal building. 4 what percentage of bolts must be installed and tightened on rigid frames before the hoisting equipment is released? at least 50% construction loads may only be placed on which of the following: properly secured structural framework when placing construction load on systems-engineered metal buildings, they must be placed within a zone that is within how many feet of the centerline of the primary support member? 8 Both ends of all steel joists or cold formed joist must be fully bolted and/or welded to the support structure before which of the following can occur? Releasing the hoisting cables Allowing an employee on the joists Allowing any construction loads on the joists Due to their lightweight nature, these are not usually suitable anchorage points Girts When installing safety systems, what steps must occur before purlins may be used as a walking/working surface? permanent bridging has been installed fall protection is provided Which of the following are requirements for perimeter safety cables? they be installed regardless of other fall protection sys in use they must meet the criteria for guardrail systems they must be installed on multi story structures At what height is the requirement for fall protection triggered for steel erection activities? 15 feet at what height is a connector required to wear the equipment necessary for tie off but does not have to be tired off at all times between 15 & 30 Who is allowed in the controlled decking zone? only employees engaged and trained in leading edge work what is the max allowable size of a controlled decking zone? 90 feet wide and 90 deep Which of the following are true about the controlled decking zone? *the boundries must be clearly marked by the use of control lines or other equivalent means final deck attachments the installation of shear connector cannot be performed in CDZ there cannot be more than 3000 sq ft of unsecured decking in the CDZ ??? When making safety deck attachments in the controlled decking zone, they must be performed from ____. the leading edge back to the control line