Intermediate Rigging Exam Prep Questions & Answers., Exams of Public Health

Download Intermediate Rigging Exam Prep Questions & Answers. and more Exams Public Health in PDF only on Docsity! Intermediate Rigging Exam Prep Questions & Answers.  What is the distance from a compacted soil - Correct answer 1.5 ×depth?  What is the distance from compacted soil - Correct answer 1×depth?  How far past tracks must mats be - Correct answer 2'  Name 2 methods for cribbing - Correct answer 1) area of float ×3= blocking area  2) Crane capacity ÷5= blocking area  How level must cranes be - Correct answer 1% or .57°  What is the formula for leverage - Correct answer Weight × distance = weight × distance  How far must you type off the crane - Correct answer 2' from the counter weights?  What is the wind speed that stops hoisting operations - Correct answer 25-30 MPH?  At what speed do you stop hoisting personnel - Correct answer 20 MPH  When is side loading okay - Correct answer only with a freely suspended load  What is effective weight - Correct answer everything below the boom tip  Who must sign off on new signals - Correct answer the operator, signal person, lift director?  What is the best tag line to use for work near power lines - Correct answer Polypropylene?  What does it mean when you have localized narrowing of outside diameter of wire rope - Correct answer Broken core  What is RRL - Correct answer Right regular lay  What is EIPS - Correct answer Extra improved plow steel?  What is IWRC - Correct answer Independent wire rope core?  What percentage of diameter can wire rope not go below - Correct answer 95%?  Gross capacity is the same as - Correct answer Allowable line pull P a g e 1 | 4  Gross capacity- deductions equals - Correct answer Net capacity  What is the capacity for crane on outriggers, tire, track - Correct answer Outriggers= 85%  Tires=75%  Tracks=75%  What does everything above the bold line on a load chat mean - Correct answer more likely to break?  What does everything below the bold line on a load chat mean - Correct answer more likely to tip over?  What is the safety factor for slings - Correct answer 5?  What is the safety factor for chains - Correct answer 4?  What grade must the steel chain be for lifting operations - Correct answer 8/ 80/ 800?  How many broken wires are required to make a standard running rope unusable - Correct answer 3 per strand per lay, 6 random per lay  How many broken wires are required to make a rotation resistant running rope unusable - Correct answer 2 per strand per 6 rope diameters, 4 per strand per 30 rope diameters?  How many broken wires are required to make a standing rope at end fittings unusable - Correct answer 1?  How many broken wires are required to make a standing rope at mid area unusable - Correct answer 2?  How many broken wires are required to make a wire rope sling unusable - Correct answer 5 per strand per lay, 10 random per lay  What is the sling stress for 90° - Correct answer 1.000?  What is the sling stress for 60° - Correct answer 1.155?  What is the sling stress for 45° - Correct answer 1.414?  What is the sling stress for 30° - Correct answer 2.000?  What is the sling stress for 5° - Correct answer 11.490?  What is ANSI standard for hook twist opening and wear - Correct answer Twist 0°  Opening 5% P a g e 2 | 4