Lattice - Study guides, Class notes & Summaries

Lattice Boom Crane Review Questions with correct answers.

NCCCO Lattice Boom General Knowledge Questions And Answers Graded A+

Metallic Lattice Structure : Metal atoms have a weak hold on their outer shell or valence electrons. This allows the electrons to move freely through the metal without being bound to one atom. Each metal atom becomes a positively charged ion. Opposite charges attract and this electrostatic force provides multidirectional bonding between the positive ions and the 'sea 'of loose electrons around them. Ionic Lattice Structure : this occurs when metallic elements bond with non-metallic ...

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 ...

Lattice Boom Crane (Actual) Exam Graded A+

Lattice Boom Practice Questions with correct 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...

NCCCO LATTICE BOOM GENERAL KNOWLEDGE QUESTIONS & ANS!!

NCCCO Lattice Boom General Knowledge with 100% correct answers

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 most unstable working quadrant for a crawler crane is the; - ANSWER Side 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% What type of capacity is listed on a crane load chart? - ANSWER Static If ...