Signaling Test
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Extend Telescoping Boom
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| show | False
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| show | False
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| The _____________ signal may be used to adjust the rigging or cribbing, reposition the suspended load, or correct some minor problem before the lift proceeds. | show ๐
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| show | 1.chain 2.synthetic round slings and 3. .wire rope.
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| show | TRUE
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| show | density
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| show | False
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| show | 450 lb
A 1/2 inch steel EMT conduit weighs 0.30 pound/foot.
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| show | 8,160 lb
Note: A steel sheet at 1/4 inch thick weighs 10.2 pounds/foot.
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| show | True
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| show | density
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| 1/6ฯd3 | show ๐
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| l ร w ร h | show ๐
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| 1/4ฯd2 ร h | show ๐
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| 1/3ฯb2h | show ๐
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| show | True
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| show | dynamometer
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| show | Balance
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| The CG is always closer to the lighter end. T/F | show ๐
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| show | Sections
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| show | Moment
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| show | True
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| show | 1/3
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| Asymmetrical rigging means that the required sling lengths and angles are unequal. T/F | show ๐
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| show | 1. Vertical hitch
2. Basket hitch
3. Choker hitch
4. Bridle hitch
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| show | A Basket Hitch effectively doubles the "rated load"of the sling (as long as the legs of the sling remain withing 5ft of the vertical.
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| show | hitch
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| Synthetic web sling eyes must not be put around objects that are wider than one-fifth the length of the eye. T/F | show ๐
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| The ______________hitch is the simplest of all the hitch arrangements. One end of the sling is connected to a hoist hook and the other to a load. | show ๐
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| A major advantage of a basket hitch is that it effectively ___________________________ the rated load of the sling as long as the legs of the sling remain withing 5 degrees of the vertical. | show ๐
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| show | Choker
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| __________________________ can be used to form, field-assembled bridle sling, particularly when all the sling eyes will not safely fit within the hoist hook. | show ๐
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| The ? is the maximum tension that a rigging component may be subjected to while maintaining an appropriate margin of safety. | show ๐
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| show | Breaking strength
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| show | True
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| show | False
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| show | False
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| show | vertical
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| An advantage of a basket hitch is that it effectively doubles the rated load of the sling as long as the legs of the sling remain within 5ยฐ of vertical. | show ๐
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| Most basket hitch rigging requires only one basket. | show ๐
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| show | choke
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| show | False
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| The tops of _____________________ slings are gathered at a common hook or fitting. | show ๐
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| The minimum recommended sling angle is __________ . | show ๐
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| show | True
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| Equipment that does not meet _____________________ inspection requirements may have a manufacturing defect, an improper label, or shipping damage. | show ๐
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| A(n) ________________________ inspection is a thorough rigging equipment inspection performed at regular intervals. | show ๐
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| A(n) ? inspection is a rigging equipment inspec tion performed at the beginning of each workday or shift by the user of the equipment or by another designated person. | show ๐
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| show | True
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| show | True
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| Hardware and attachments require gradual drying in fresh, circulating air before storage. T/F | show ๐
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| show | False
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| A bundle of wires twisted spirally around and axis. | show ๐
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| show | Core
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| A __________________________-lay rope is a rope in which the wires in the strands are twisted in the opposite direction of the lay of the strands. | show ๐
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| In a right hand Regular lay rope, the strands are twisted to the ___________________ | show ๐
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| show | Lay
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| Lang lay ropes are identified by their wires crossing the axis fo the rope at appropximately ________________ degrees. | show ๐
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| show | 1. outer 2. useful life
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| show | flexibility
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| Th most common strand patterns are 1._____________ 2.________________ 3_______________ and 4.___________________ | show ๐
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| show | Removed
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| show | 6
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| show | polymer
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| The primary advantage of synthetic slings is their resistance to abrasion and puncturing. | show ๐
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| show | blue
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| Webbing is available in multiple widths and numbers of________________________ which determine its strength. | show ๐
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| Class 7 webbing has a minimum certified tensile strength of 6800 lb/in. of width per ply. | show ๐
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| show | True
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| A ? is an edge treatment on woven material that helps prevent unraveling | show ๐
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| The typical safety factor for web slings is 5. T/F | show ๐
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| show | splice
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| A size 5 roundsling is _____________________ in color. | show ๐
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| The _______________ wire rope is the least susceptible to wear | show ๐
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| show | Yacht and umber 1
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| The bowline knot can be tied with the working end on either the inside or the outside of the loop, though the knot is stronger with the working end on the outside. t/F | show ๐
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| show | yarn
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| ______________________rope consists of completely separate inner and outer braids, which may be of different materials. | show ๐
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| show | Plaiting
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| In most cases, a safety factor of five is used for fiber rope. T/F | show ๐
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| ______________________________ is the tendency of a knot under load to change form, often in an adverse way. | show ๐
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| show | nip
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| show | standing part
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| A(n) ? is a method of tying together two ends of the same rope, such as when a rope is wrapped around an object and the two ends meet and are knotted together. | show ๐
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| show | False
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| A figure eight knot is also known as a ______________ Knot | show ๐
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| The __________________________ is used for joining ropes of slightly different diameters | show ๐
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| A round turn is typically finished with two half hitches, which form a _______________________ hitch. | show ๐
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| A catโs paw hitch is a compound knot that has the distinct feature of providing mechanical advantage when tightening. T/F | show ๐
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| show | Sheave
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| The most common types of blocks used in industrial hoisting applications are crane blocks, wire rope blocks, snatch blocks, tackle blocks and gin blocks. T/F | show ๐
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| show | crane
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| ___________________ blocks are designed for slower speed opera tion and generally have plain bore or bronze bushing sheaves that must be disassembled for inspection and relubricatio | show ๐
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| A ________________ Rope Block is a block used with powered hoists where severe conditions of service are not expected. These blocks are relatively light and typically do not require weights to descend via gravity when being lowered. | show ๐
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| show | Tackle
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| A ___________________Block also known as a well wheel is a very simple block that is not much more than a large sheave in a lightweight frame. These block are used in hand-powered hoisting operations involving relatively light loads. | show ๐
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| * _____________ is the combination of ropes and accessories used with blocks to gain advantage for lifting. In rigging applications the rope is known simply as "rope" or "line" | show ๐
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| show | True
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| show | True
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| show | becket
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| One-part reeving has a mechanical advantage of 2:1, reducing the lead-line force to only 50%. T/F | show ๐
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| Three-part reeving involves two sheaves in an upper block and one in a lower block. | show ๐
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| A lifting force is a constant force applied to an object that is only sufficient to keep the object in place. | show ๐
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| show | 140lbs
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| In a block-and-tackle assembly, the number of sheaves is assumed to equal the number of parts. | show ๐
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| What is the minimum force required to lift a 5,000-pound load using an eight-part reeving system equipped with plain bearing sheaves?The bend ratio is 17. | show ๐
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| show | True
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| show | True
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| In a single-part reeving assembly, the lead-line force is equal to the load weight. | show ๐
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| When rope must be replaced, often the blocks must be replaced as well because the sheave grooves are no longer their original size. | show ๐
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| show | Lift
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| _______________________ is the distance from the cup of a hoist's top hook to the cup of the hoist hook when it is at it's upper limit of travel. This dimension specifies how much space must be allowed under the support for the hoist. | show ๐
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| ________________ is the distance between the cup of the top hook and the cup of the hoist hook when it is at it's lower limit of travel. | show ๐
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| show | True
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| show | False
Torque is rotational force
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| A ________________________ is a sprocket-like wheel with chain-link pockets. | show ๐
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| show |
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| Most lever-operated hoists use ratchets to transfer power and prevent reverse rotation. T/F | show ๐
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| A(n) ____________________ hoist is a power-operated hoist that uses an air motor to provide an input torque to a gear drive. | show ๐
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| show | True
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| show | False
Note: The rope should be overwound from left to right if the rope is anchored on the left and the rope is a RIGHT-LAY rope.
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| Worm gear drives normally require braking or locking mechanisms to prevent reverse rotation. T/F | show ๐
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| show | Pocket wheel
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| show | crossover
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| show | slip clutch
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| A limit switch automatically deenergizes a hoist when the hoisting line reaches either end of its travel limit. T/F | show ๐
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| show | False
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| Slip clutches are typically set at about 110% of the rated capacity of a hoist. T/F | show ๐
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| show | True
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| Removed brake linings are inspected for deforma tion by laying a straightedge across the center and checking for gaps as the straightedge is rotated. T/F | show ๐
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Created by:
Shawnt321