Millwright Rigging & Lifting Questions And Answers Already Graded A+

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 - Answer-b. left lay Cotter pins must be used with all ______________ pin shakels a. screw b. safety c. round d. round pin anchor - Answer-c. round When using an eye bolt, keep the bending to aminimum. Always apply the loads ______________ especially when using bridal slings. - Answer-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 - Answer-single basket hitch If you are lifting people you must not lift more than what ratio of breaking strength? - Answer-1/10 A knot can reduce the breaking strentgh of the rope by a. 50% B. 20% C. 70% d. 60% - Answer-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 - Answer-c. lighter capacityA 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 - Answer-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 - Answer-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 - Answer-decreases Never incline the legs of a double basket hitch more than? a. 50* B. 20* C. 70* d. 60* - Answer-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 - Answer-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 - Answer-a. 120-130 A core is built into a wire rope to ? a. hold shape b. conform to manufacturers specsc. supports strands and maintain shape d. stiffen rope - Answer-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 - Answer-b. sisal