Todas las máquinas roscadoras de tubos tienen _____, que sostienen y giran el tubo.
a. prensas giratorias
b. impulsoras de trinquete (o freno)
c. portabrocas (o mandril)
d. dientes
Answer: C
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?List three sources of valve seating pressure. A. B. C.
What will be an ideal response?
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Normal battery drain (parasitic drain) for a vehicle with many computer and electronic circuits is ________
A) 20 to 30 milliampere B) 150 to 300 milliamperes C) 2 to 3 amperes D) None of the above
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Which of the following is a type of sports arena that uses flooded evaporators?
A) Soccer field B) Baseball field C) Ice rink D) Basketball court
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A bag of masony cement holding a volume of 1 cubic-foot is sufficient for making mortar to lay 60 economy-size bricks in the running bond pattern.
Answer the following statement true (T) or false (F)
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