NFPA 306 STANDARD FOR THE CONTROL OF GAS HAZARDS ON VESSELS. 2013 REVISION CYCLE A SUMMARY OF THE CHANGES. Changes to 306. There were about 110 suggested changes proposed to 306, the most in recent memory.

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Work Points, Work Axes, and Work Planes. Work Points. Work point Independent entity Location is defined in space May be placed or projected onto part faces, linear edges, or onto an arc or circle Can be constrained to center points of arcs, circles, and ellipses. Work Axis. Work axis

Bell Work: Work Intro. What do the F and d stand for? What are the units for F and d? What do the W and t stand for? What is the unit for t? Work is a form of energy. What is the unit for work and energy?. Work and Power. Work.

Work Points, Work Axes, and Work Planes. Work Points. Work point Independent entity Location is defined in space May be placed or projected onto part faces, linear edges, or onto an arc or circle Can be constrained to center points of arcs, circles, and ellipses. Work Axis. Work axis

Work. - Work (W) is defined as a force moved over a distance. Units: N m. - Only the component of the force in the direction of motion does work. . W = F d cos .

General Definition: What people are paid to do. Synonymous with employment and income. Women’s Definition: What people do for pay, the benefit of self or others, or what one considers to be work. WORK. Women’s Work. Housework The Second Shift Emotional work Mothering Volunteering

WORK. What is it? . Shoveling the walkway is hard work !. Writing this report is hard work !. What do you do for work ? . Becoming good at the violin takes a lot of work . Work is done when a force causes an object to move in the direction of the force. .

Work !. Review of scalar product of vectors Work by a constant force Work by a varying force Example: a spring. Serway & Jewett 7.1 – 7.3. Work and Energy. Newton’s approach:. - acceleration at any instant is caused by forces. Energy approach : Net work = increase in kinetic energy.