Wire rope swl - Study guides, Class notes & Summaries

NCCCO/ CCO Crane Tests BUNDLED TOGETHER (New 2023/ 2024 Update) Questions and Verified Answers| All Graded A | 100% Correct QUESTION Why use mats or cribbing? To reduce ground pressure QUESTION Tipping capacities of crawler cranes are based on what percentage of tipping? Answer: 75% QUESTION Should the load be applied when determining the proper boom angle? Answer: Yes QUESTION When should the operator use the "run by the seat of the pants...

NCCCO Overhead Crane Test (New 2023/ 2024 Update) Questions and Verified Answers| Graded A| 100% Correct QUESTION What should an operator first determine before making a lift? Answer: weight of the load QUESTION A wire rope designated as 6 X 19 has? Answer: 6 strands with 19 wires QUESTION What is the safe working load (SWL) of a wire rope defined as? Answer: breaking strength divided by safety factor QUESTION What is the vertical movem...

What is the safety factor for pendants or standing ropes? ~~> 3/1 for normal operations 2.5/1 for boom erection Safe working load (SWL) is ______ ~~> Rated Strength The effective weight of an erected extension would be higher or lower than its actual weight? ~~> Higher How much twist is allowed in a crane hook? ~~> None What is the horizontal distance a stand takes for one complete rotation around the ropes core? ~~> Rope lay or lay length 2 | P a g e | ©...

1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c. 1" d. ¼" a. ½" 3. What is the standard safety factor to consider for a platform supporting people?a. 1 : 1 b. 5 : 1 c. 10 : 1 d. 15 : 1 c. 10 : 1 4. If a wire rope has a breaking strength of 15,000 lbs, d...

Millwright Rigging & Lifting Exam Questions With Verified Answers 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 - answerc. 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 - answerd. support long loads during lifts What are equalizer beams used f...

Millwright Rigging & Lifting Exam Questions With Verified Answers 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 - answerc. 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 - answerd. support long loads during lifts What are equalizer beams used f...

Millwright - Rigging and Hoisting Exam Questions With Verified Answers 1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs - answera. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c. 1" d. ¼" - answera. ½" 3. What is the standard safety factor to consider for a platform supporting people? a. 1 : 1 b. 5 : 1...

Millwright - Rigging and Hoisting Exam Questions With Verified Answers 1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs - answera. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c. 1" d. ¼" - answera. ½" 3. What is the standard safety factor to consider for a platform supporting people? a. 1 : 1 b. 5 : 1...

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 use...

1. Of a block and tackle with five rope falls and minimum friction, how much force is needed to retain 250lbs? a. 50 lbs b. 100 lbs c. 250 lbs d. 75 lbs - correct answer a. 50 lbs 250lbs/5 = 50 lbs 2. What diameter rope is needed to support two tons using a vertical lift? a. ½" b. ¾" c. 1" d. ¼" - correct answer a. ½" 3. What is the standard safety factor to consider for a platform supporting people? a. 1 : 1 b. 5 : 1 c. 10 : 1 d. 15 : 1 - correct answer...