Lattice - Study guides, Class notes & Summaries

Lattice energy - - The enthalpy change when 1 mole of ionic compound is formed from its gaseous ions under standard conditions - It is the energy given out when ions of opposite charges comes together to form an ionic lattice Lattice energy is endothermic or exothermic? - - It is always exothermic because bonds are being formed (ionic bond) between oppositely charged ions, not broken Equation showing the formation of NaCl lattice - - Na^+(g) + Cl^-(g) > NaCl(s) The state of the opposite...

NCCCO Lattice Boom General Knowledge Questions with Correct Answers.

LATTICE BOOM CRANE QUESTIONS WITH 100% CORRECT ANSWERS!!

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%

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? 2 End connections : When lifting the boom sections for as...

Lattice Boom Crawler Crane Questions with Correct Answers

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...

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

NCCCO Lattice Boom General Knowledge | 100% Correct Answers | Verified | Latest 2024 Version

What is lattice energy? - The energy required to completely seperate a mole of a solid compound into its gaseous ions. They have positive ∆H values. What is the trend of lattice energy? - Lattice energy increase as the charge of the ions increase and their radii decrease. How do you find lattice energy? - First, find the charges of the ions in the compound. Second, place them in order of increasing or decreasing based on charge. Third, if the charges are the same look at the position on ...