Download 2025 Millwright Rigging & Lifting Exam: 100+ Questions and Answers and more Exams Mechanics in PDF only on Docsity!
2025 MILLWRIGHT RIGGING & LIFTING
EXAM|100+Qs&As|LATEST UPDATE|100% VERIFIED
These are made from a single length of sling material passed through a load. Both ends of the sling attach to the main hook. a. bridal hitch b. single vertical hitch c. single basket hitch d. double basket hitch - single basket hitch If you are lifting people you must not lift more than what ratio of breaking strength? - ANSWER 1/ A knot can reduce the breaking strentgh of the rope by a. 50% B. 20% C. 70% d. 60% - a. 50% cable clips 20% sharp corners should have padding Tackle blocks are similar to wire rope blocks but are lightrer and have?
a. larger shanks b. more sheaves c. lighter capacity d. higher capacity - c. lighter capacity A complete list of hand signals can be found in appendix D of the WCB for what signal? ANSWER- moving loads, crane signals In a test gauge if the link enters up to the second step marked R there is evidence of a. perfect alignment b. considerable wear or stretch c. excessive wear and stretch d. heat casting - b. consideRable wear and or stretch Stamped C means excessive wear and stretch If the hoist is overloaded it is first indicated by? a. heat stress b. closing of hook c. opening of lower hook c. closing of top hook - c. opening of lower hook
a. 120 - 130 b. 50 - 60 c. 45 - 90 d. 80 - 90 - a. 120 - 130 A core is built into a wire rope to? a. hold shape b. conform to manufacturers specs c. supports strands and maintain shape d. stiffen rope - c. supports strands and maintain shape Fibre cores are usually made from but can be made from synthetic rope or polypropylene. a. sisal b. silca c. rubber d. sodium - b. sisal What type of rope is used when rope is subject to sudden heavy loads, crushing or heat? a. IWTC b. ICDT
c. IWRT d. IWRC - d. IWRC Independent Wire Rope Cores or WRC wire rope cores Lay refers to the direction in which the rope are twisted together. The term lay length refers to the along the rope in which a strand makes one revalution a. size b. distance c. direction d. angle - b. distance This consists of a number of wires twisted to the left around a small core to form each of six strands. These strands are then twisted to the right around the main core to form the final rope a. Lang lay b. Left lay c. Center lay d. Right lay - d. Right lay
a. force needed to pull rope b. force needed to tear rope c. force needed to break the rope d. force needed to stretch rope - c. force needed to break the rope What are spreader beams used for? a. calculate loads b. use on heavy lods c. support loads during lifts d. support long loads during lifts - d. support long loads during lifts What are equalizer beams used for? a. equalize the load on sling legs and to keep equal loads on dual hoists lines when making tandem lifts b. equalize the load on sling legs and to keep equal loads on dual hoists lines when lifting shanks c. equalize the load on sling legs and to keep equal loads on dual hoists lines when making angular lifts d. equalize the load on sling legs and to keep equal loads on dual hoists lines when making deformed lifts - a. equalize the load on sling legs and to keep equal loads on dual hoists lines when making tandem lifts
the load capacity of beams depends on the load between those two points. If distance across beam is doubled. Load capacity is halve When using an eye bolt, keep the bending to aminimum. Always apply the loads especially when using bridal slings. - to the plane of the eye Wire ropes are classified by 4 factors number of ropes number of strands type of core the lay - Wire ropes are classified by 4 factors number of ropes number of strands type of core the lay A proper fitting sheave groove should support the rope over degrees or rope circumference a, 120 - 360 b. 50 - 90
g c. right d. center - c. right For new rope the working strength is its breaking strength a. 1/ b. 2/ c. 1/ d. 1/5 - d. 1/ In addition to being the starting point for many knots the is frequently used as a stopper end of rope a. figure eight b. square or reef c. bowling d. bowline bite e. overhand - e. overhand This knot is used to prevent the end slipping through a fastening or loop in another line a. figure eight b. square or reef
c. bowling d. bowline bite e. overhand - a. figure eight This knot is used for tying lines of same size together a. figure eight b. square or reef c. bowling d. bowline bite e. overhand - b. square or reef
a. hooks b. master ring c. hoist d. bearing surfaces - d. bearing surfaces of each link When the chain shows signs of wear a the bearing surfaces 5% of link diameter for chains less than 1", OR 10% of chains over 1" a. report to supervisor b. stop using the chain c. fix immediately d. buy a new one - b. stop using the chain For over head lifting use only a. rated chains b. slings c. button hook chains d. weld free forged fittings - d. weld free forged fittings A capel socket gives 100% efficient just like the Poured spellar socket. What does a capal socket efficiency depend on? a. socket weld b. consistency of weld
c. forged diameter d. tightness of wedges - d. tightness of wedges a. 60 b. 50 c. 75 d. 70 - d. 70 These permanent attachments are made by compressing a steel sleeve over the rope with a hydraulic press. a. Cable clips b. wedge sockets c. Swaged sockets d. forged sockets - Swaged sockets With a thimble properly installed in the eye of the cable or wire it is completely protected and retains its shape. If not the effeicecy can be reduced up to % a. 40 b. 13 c. 5 Wedge sockets are intended for on the job replacement and for quick rope replacement. Their principal advantages are ease of speed of applying and detaching. They are used to secure a ball or hook on a crane. THe effiecency is % strengthof the rope.
Pulleys in a block are called a. shackles b. dangs c. pulley wheels d. sheaves - d. sheaves What must you know about a rope to prevent overloading? a. breaking strength b. safe work load SWL c. safety factor d. all the above - d. all the above A temporary fastening to a rope to a ring is called? a. square knot b. tackle sling c. choker d. hitch - d. hitch Fixing the end of the rope so that the strands will not unravel a. long lay b. u bolt c. whipping
d. clipped - c. whipping When unwinding a rope from a reel make the the rope? a. is not over loaded b. turns c. is not backwards d. is manilla - b. turns When rope has its strands and wires wound in the same direction it is? a. right lay b. left lay c. long lay d. lang lay - d. lang lay When installing U bolt clips on a wire rope the U of the clip should bear against the a. dead end of rope b. lead end of rope c. U clip d. bevel joint - a. dead end of rope U bolt clips should be spaced 6 apart
There are right and left hand crosby clips. Take care to fit right hand clips with and left hand clips with rope a. left lay, right lay b. lang lay, right lay c. right lay, left lay d. lang lay, left lay - c. right lay, left lay All hoisting equipment with the exception of sorting hooks must be equipped with a. safety drops b. safety chains c. safety catch d. safety cams - c. safety catch Common types of choker hooks are standard, adjustable, sliding, and a. antislid b. cross d. straight e. dual sliding - e. dual sliding
Two types of shackles are commonly used in rigging, the bow type and a. headace ball b. D-type c. C-type d. S-type - b D-type Shackles are sized by the diameter of steel in the section a. front b. back c. center d. bow - d. bow Cotter pins must be used with all pin shakels a. screw b. safety c. round d. round pin anchor - c. round When using eyebolts always use a shackle and ensure that the lifting angle is above a. 90 b. 60
