What is "reverse flow" in oxyacetylene torch and how can it be dangerous?
What will be an ideal response?
A condition known as reverse flow can occur if unequal acetylene and oxygen pressures are allowed to mix in the hoses, regulators, or cylinders. In a worst case scenario, reverse flow can result in a catastrophic explosion.
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A(n) ____ is simply a short statement of your interest in working for a particular company; it should be brief, assertive, and positively stated.
A. letter of introduction B. abstract C. objective statement D. letter of intent
What types of damages are owners entitled to for delay claims?
What will be an ideal response?
A two-story building is 60 X 40 with 10-foot ceilings. What is the total volume?
Fill in the blank(s) with the appropriate word(s).
Chemical-plant equipment costs rarely vary in proportion to size. In the simplest case, cost C varies with size S according to the allometric equation
(a) For 0 < ? < 1, show that cost per unit size decreases with increasing size. (“Economy of scale.”)
(b) Consider the case of a spherical storage tank. The size is commonly measured by internal volume 
Show why
one might expect that ? = 2/3. On what parameters or properties would you expect quantity ? to depend?