What is a premixed flame?
A) A flame where air is introduced at the point of combustion, or flame sheet
B) A flame where air is introduced before the point of combustion
C) A flame that spreads across a horizontal surface
D) A flame that moves across a ceiling
B
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A muscle is called the _________ when it is the principle muscle or one of a group of principle muscles responsible for an action. A muscle acts as the _______ when it opposes a motion
Fill in the blank(s) with the appropriate word(s).
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Cloudiness of the lens of the eye, leading to impaired vision, is known as:
A) glaucoma. B) night blindness. C) cataracts. D) poor peripheral vision.
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