Lattice boom - Study guides, Class notes & Summaries

On a lattice boom crawler crane, the main boom length is measured from the: Center of the boom heel pins to the center of the boom tip sheave What is the main purpose of mid point suspension pendants? To absorb shock that comes with dynamic loading Brainpower Read More Previous Play Next Rewind 10 seconds Move forward 10 seconds Unmute 0:06 / 0:15 Full screen The main purpose of a gantry or a mast on a crane is: To increase the crane's leverage on the boom W...

NCCCO Lattice Boom General Knowledge Exam Questions and Answers

LATTICE BOOM CRANE QUESTIONS WITH 100% CORRECT ANSWERS!!

NCCCO LATTICE BOOM GENERAL KNOWLEDGE (2024/2025) QUESTIONS WITH COMPLETE ANSWERS!!

Front - Regardless of the procedure used, never deliberately orient the crane boom to take wind from what direction? Increase - If you move a crawler crane from soft ground to harder ground, ground bearing pressure will do what? Increases it - Extending the crawler tracks on a crane has what effect on it? 70% - On a crawler crane, the part of the load chart governed by stability is based on what percentage of its capacity? End connections - When lifting the boom sections for assembly or d...

The lattice boom is designed to take winds of up to 20 mph. from the side plus a full rated load, plus a direct side load equal to what percent of the rated load? - ANSWER 2% The part of the load chart governed by stability is based on what percentage of capacity while a crawler crane is working over the side quadrant? - ANSWER A. 75%

The lattice boom is designed to take winds of up to 20 mph. from the side plus a full rated load, plus a direct side load equal to what percent of the rated load? - 2% The part of the load chart governed by stability is based on what percentage of capacity while a crawler crane is working over the side quadrant? - A. 75% The most unstable working quadrant for a crawler crane is the; - Side What type of capacity is listed on a crane load chart? - Static If the manufacture of a particular cr...

NCCCO LATTICE BOOM GENERAL KNOWLEDGE QUESTIONS & ANS!!

On a lattice boom crawler crane, the main boom length is measured from the: - ANSWER Center of the boom heel pins to the center of the boom tip sheave What is the main purpose of mid point suspension pendants? - ANSWER To absorb shock that comes with dynamic loading The main purpose of a gantry or a mast on a crane is: - ANSWER To increase the crane's leverage on the boom

On lattice boom cranes with power load lowering mounted on the hoist, a heavy load should be lowered by; - Power load lowering feature and the foot brake A pin-connected lattice boom is being dismantled. After connecting the equalizer(bridle) to the connecting lugs on the boom butt, which boom connecting pins should be removed first? - Lower connection pins, located ahead of the equalizer Using a mobile crane on a barge, the cranes load capacity ratings will be? - replaced by a list chart ...