When a scroll compressor exhibits symptoms of valve damage, _____.
a. the valves can be replaced
b. the orbiting scroll plate may be cracked
c. it should always be replaced with a reciprocating compressor
d. a burnout has likely occurred
b. the orbiting scroll plate may be cracked
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Which of the following is true of mild steel welds?
A. The primary flame shields the molten weld pool. B. Carbon dioxide that is formed reacts with the molten weld pool. C. It is possible to make welds with 100% integrity. D. The carbon dioxide draws the surrounding atmosphere into the weld.
Pure gasoline has an energy density of 115,600 BTU per gallon while ethanol has an energy denÂsity of 75,670 BTU per gallon. If gasoline costs $3.50 per gallon, (a) what would the cost of pure ethanol have to be in order for the energy costs of the two fuels to break even? (b) What would the price of E85 (85% ethanol, 15% gasoline) have to be for its energy cost to be the same as that of pure gasoline?
What will be an ideal response?
In which directions are aligned and unidirectional dimensions read?
What will be an ideal response?