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Crane Study Guide Test 2024.

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Crane Study Guide Test factors that determine crane capacity - correct answer 1. weight of crane 2. strength of components 3. stability 6x25 wire rope is what class wire rope? - correct answer 6 x 19 List 4 causes of bird caging - correct answer 1. Sudden release of tension 2. Sheaves too tight 3. Torsional unbalance 4. Shock loading What is the % efficiency of a Flemish eye? - correct answer 90% What is duty cycle? - correct answer Performing a duty with a crane that is constant and that will fatigue the crane. What is the recommended way to block up a crane? - correct answer At least 3x the outrigger pad area Define gross load - correct answer Gross load is the sum of the weights of attachments, lift, rigging, ropes, etc. List 5 parts of a lattice boom section - correct answer 1. Picture frame 2. Chords 3. Lacings 4. Pin connection lugs 5. Diagonals (sectional support)


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