Why does a gallon of gasoline have slightly more energy than a gallon of crude oil?
What will be an ideal response?
Because gasoline is refined, the impurities in crude oil have been removed. Consequently gasoline as a little more energy content than crude oil.
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____ refers to the equipment, cables, slings, and other hoisting equipment used to lift precast units into place.
A. Placing B. Transporting C. Framing D. Rigging
Which of the following tasks is not associated with surface mining?
A) Miners dig tunnels in the earth B) Supports and pillars are used to support the mine roof C) Additional interconnecting passages are dug D) Explosives are used to move quantities of earth away from the deposit
The ____________________ type of diagram asks questions that require a response before the technician proceeds to the next step.
Fill in the blank(s) with the appropriate word(s).
Which of the following industrial processing methods is currently used to yield hydrogen from water?
A. distillation B. cold temperature fractioning C. electrolysis D. catalytic cracking