Which of the following keeps the flame from entering the hoses and regulator?
A) Oxygen shutoff valve B) Flashback arrestor
C) Acetylene shutoff valve D) Flame suppressor
B
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Comment on the feasibility of cooling your kitchen in the summer by opening the door to the electrically powered refrigerator.
What will be an ideal response?
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The egg is forced out of the hen's body through an opening called the:
a. Cecum c. Cloaca b. Colon d. Gizzard
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Residential air conditioning refers to air conditioning applied to
A) industrial plants B) office buildings C) retail stores D) private household residences
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