Millwright Rigging & Lifting Exam Questions With Verified Answers Graded A+ 2024/2025

Millwright Rigging & Lifting Exam Questions With Verified Answers Graded A+ 2024/2025 The breaking strength of rope is 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 halves 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 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? 1/10 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? 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 As the angle between the lines of a snatch block increased the stress on the block and hook ________________. a. increases b. decreases c. stays the same d. reduces SWL decreases Never incline the legs of a double basket hitch more than? a. 50* B. 20* C. 70* d. 60* d. 60* Traction grade wire rope has a breaking load of __________ tons per square inch a. 110-190 b. 50-60 c. 45-90 d. 80-90 d. 80-90 Special improved plow grade wire rope has a breaking load of _________ tons per square inch 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 This consists of wires twisted to the right and then the strands twisted to the left to produce the rope a. Lang lay b. Left lay c. Center lay d. Right lay b. left lay This consists of wires or strands twisted in the same direction. a. Lang lay b. Left lay c. Center lay d. Lang lay d. lang lay -Disadvantages include both ends need fastened to prevent unraveling -must not be used in single part lift or with swivels -cannot be used with slings and does not resist cutting Is more flexible has more area in contact with drum spools 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 c. 45-90 d. 135-150 d. 135-150 Store all wire rope in a _______ or spool in a dry place away from moisture and extreme heat a. coil b. upright c. angled to drip wetness off d. downward a. coil The usual method of twisting for fiber rope such as hemp is a. 360 twisting b. angle twisting c. right lay pattern d. reverse twisting d. reverse twisting reverse twisting produces a left lay rope Most industrial synthetic fibre ropes are the standard three strand, ________________hand lay ropes. a. left c. right d. center c. right For new rope the working strength is ______ its breaking strength a. 1/4 b. 2/3 c. 1/8 d. 1/5 d. 1/5 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 ______________ is most commonly used to form a loop in the end of a line his knot is used for tying lines of same size together a. figure eight b. square or reef c. bowline