Rigging – Final Exam Questions and Answers Rated A

Rigging – Final Exam Questions and Answers Rated A Synthetic, wire rope, or chains are most commonly placed in one of three sling configurations Vertical, Choke, or Basket The WWL for a sling is dependent upon the _____________ Configuration Why are Slings so popular with utility companies Strong, durable, inexpensive, and tagged with specific weight ratings What are the common slings made out of Synthetic, wire rope, and chain Which sling material is best for being non-conductive Synthetic Which is the strongest sling configuration Basket Which is the weakest sling configuration Choke Out of the 3 sling positions which is middle of the pack for strength Vertical A sling placed in the _______________ position is on average about 2 times stronger than vertical sling position Basket A sling placed in a _____________ position is about 1/2 as strong as a sling in the vertical position Choke Which sling position normal suggests more than one sling is used Vertical Which sling position minimizes slip Choke Which sling position is the strongest for rigging Basket Synthetic slings are also called Web slings What is the most common material used to manufacture synthetic slings Nylon Synthetic slings usually have A name tag sewn inside (leather) What does a sling name tag provide WLL for 3 sling positions, Manufacturer, Date of Manufature, Width, Ply, Grade of material, Material DF Are sling name tags required Yes What should you do if the Sling name tag is missing or unreadable Do not use the sling How many types of web slings are there Six Are there any web slings that are prohibited from using all configurations Type 2 is not permitted to be in a Choke (triangle to triangle) What are common defects to look for in a synthetic sling Loose stitching, torn fibers, abrasions, burned/melted Synthetic slings are made with the same materials as Synthetic ropes Which sling is non-conductive, but still requires an insulator for energized work Synthetic Sharp edges and corners must be __________ prior to using synthetic slings Padded ___________________ is very damaging to synthetic slings Ultraviolet light Before discarding a synthetic sling you should Cut it to prevent use Wire rope slings are popular due to Lifting heavy loads (large poles or towers, large voltage regulators, large pad-mounted transformers, most substation equipment) Most common wire rope sling Strand-laid leg, eye-to-eye How are eyes to wire rope slings spliced Hand or machine IWRC Independent Wire Rope Core FC Fiber Core EIP Extra Improved Plow Before discarding a wire rope sling you should Cut it to prevent use Care and use of Wire Rope Slings (look for) Broken strands, excessive deformation, reduction in diameter, rust, integrity of end fitting When a wire rope sling is not in use Clean, lightly oiled, stored in dry area What are chains most commonly used for Securing loads, rigging and attachment points, lifting and moving poles/equipment Required in order to use a chain on public highways Proof-Test Rating on each link Chains used for lifting, rigging, or hoisting (grade) Grade 80 Alloy Chain What sling is most commonly used for setting pulls (material) Chain slings C Chain as Choker O Oblong Master P Pair Shaped master CO or CP Chain Sling types for setting poles Most common wear associated with chains Stretching and wear at the end of each link where they connect Dragging a chain Reduces the diameter Inspect chains for Corrosion, cracks, stretch, deformation, obligation __________________ are steel connectors that join two slings or create attatchemnt points for rigging/hardware Shackles What are the two types of shackles Material and Rigging __________ are used for attaching or joining hardware such as an insulator to structures Material shackles __________ are used to join slings Rigging shackles ___________ should never be used for rigging Material shackles ____________ use a screw type pin to secure them Rigging shackles ____________ use a pin with a cotter key to secure them Material shackles Should you substitute pins in shackles No Should shackles be subjected to side strain No Does a pin need to be completed threaded in a shackle Yes Where does the running end of the wire rope sling go on a shackle Shackle body Where does the eye of the wire rope sling go on a shackle Shackle Pin When a single sling is used in vertical configuration, the tension on the sling is equal to __________ Weight of the load Is single sling configuration more common in Linework No (either 2 vertical or a reverse basket) When Slings are shortened to accommodate more lift, the tension on each sling _______________ Increases As the sling angle decreases, the tension on each sling _______________ Increases When are sling angles most commonly encountered Installing transformers, regulators, and other electrical equipment (Wire reels or transformers) Equipment safety begins with Pre-Trip inspection Where should a pre-trip inspection be located Operator's manual What is an easily overlooked element of the pre-trip inspection Controls properly marked and the boom angle/load charts are attached/legible Is the positioning of the digger derrick truck important Yes Do digger derricks need to be leveled out Yes How is a digger derrick leveled out Outriggers and cribbing Are outriggers and stabilizers designed to lift the digger derrick No If the truck is at an angle greater than _______ the boom should only be operated in the lowest swing pattern 5 degrees Digger derricks turrets are mounted in 3 configurations Rear, Center, Corner Digger derricks have operational zones based upon Turret location and outrigger location Does a crew need to refer to boom operational charts Yes Load angle charts usually include Load capacities, Boom position, Operational zones, Notices and warnings What must the boom operator know in order to make a safe lift Position of the boom and operational zone, the weight of the object being lifted A boom is strongest when Highest angle and fully retracted A boom is weakest when Lowest angle and fully extended Actual lift capacity depends on Stability of the truck and strength of surface, manufacturer's lifting limitations, physical position of the boom in relation to the load The ability of the digger derrick to lift an object that is within its maximum lift capacity depends upon Hook Radius and Sheave height The horizontal distance it is from the center of the turret Hook radius The vertical distance it is from the turret base Sheave height If the Sheave height remains the same but the hook radius is decreased, the lifting capacity of the truck will be ________ Increased If the Sheave height remains the same but the hook radius is increased, the lifting ability of the truck will be ___________ Reduced The booms of material handlers are designed to be used in almost any combination, but must be ____________ Level What test should be conducted annually on booms AC dielectric Backhoe: Safety is the responsibility of the Operator What is required when operating a backhoe Seat-belt A slow-moving sign is required when Operating a backhoe on a roadway Where do the spoils go when digging on a slope Uphill side What should a backhoe operator do anytime he exits the backhoe Turn off and take the key Where is a Load Angle Chart located Boom near controls The total weight the boom is capable of lifting safely within the manufacturer's guidelines The maximum capacity of a boom Aerial lifts all have ____________ near the turret to allow ground personnel to operate the equipment from the ground in an emergency Override controls Widely practiced and very effective; decreasing the angle reduces the efficiency even greater Choking slings Three important areas to to focus on for safety Inspection, Moving/Driving, Excavating/Operating Special attention should be made to ensure ___________ is not leaking on fiberglass components of the boom Hydraulic oil What happens when hydraulic oil is found on fiberglass components of a boom Decreased insulating value What sling rigging configuration is used to set poles Chain slings What is the insulation rating of web slings None How to protect slings and ropes from sharp corners/edges Padding What is the most common use of a CO sling Setting poles What is the minimum grade of chain required for hoisting, lifting, or rigging Grade 80 Alloy What type of shackle is used for attaching insulators to structures and never for rigging Material What is the most common type of wear associated with chains? Stretching What is the effect of common chain wear on the links? Wear at the end of each link where they connect What should employees do with regard to the backhoe's swing radius Remain outside Maintain a ______________ when driving a backhoe on the roadway behind a vehicle Safety zone Driving a Backhoe on a road: Drive _________ on uneven surfaces Slow Driving a Backhoe on a road: the backhoe is _________ than other vehicles Wider Driving a Backhoe on a road: Stop well back at stop signs so the bucket is _____________ Not protruding Driving a Backhoe on a road: Keep the bucket ________ to see Low Driving a Backhoe on a road: The bucket can do what on corners Cross the center-line Are Synthetic Slings insulated No Choking a sling significantly reduces the sling strength and should only be used when a _________ configuration is not possible Basket What sling is commonly used with rigging transformers Vertical What sling is common for supporting poles from a boom during framing Basket Which sling is stronger due to the dividing weight on each eye Basket Can a sling be used with a knot in it No When should slings be inspected Before every use Which wire sling is preferred 6 strands x 19 wires, extra improved steel plow, with IWRC Which shackle has a WLL printed on it Rigging Sling Tension (Sling Length/Sling Height) x (Weight/# of slings)