How many ounces of lead are required for 2-1/2" diameter pipe?
Fill in the blank(s) with the appropriate word(s).
30 ounces
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Why are dynamic compressors more commonly used than positive displacement compressors?
A. They are more efficient. B. Less energy is required. C. They have a smaller capacity. D. They require no maintenance.
Which of the following glass types has locked-in stresses?
A) Heat-strengthened glass B) Tempered glass C) Heat-soaked tempered glass D) All of the above E) None of the above
When variable valve timing (VVT) is used on a Caterpillar diesel engine, which of the following becomes variable?
A. valve overlap B. valve lift dimension C. moment of intake valve closure D. moment of intake valve opening
_____ should be used to anchor a pipe hanger assembly to drywall
A) Threaded drop-in anchors B) Pound-in nail anchors C) C-clamps D) Toggles