What type of open-close valve is used to completely close a line so piping or equipment can be isolated for repair, inspection, or replacement?
A. gate
B. ball
C. butterfly
D. plug
Answer: A
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Two areas where women in the 19th century were widely thought to be superior to men were
A. physical strength and mental vigor. B. moral sensibility and artistic refinement. C. political ability and organizational shrewdness. D. sexual appetite and physical desire. E. economic competitiveness and capacity for education.
Identify the four engineering economy symbols and their values. Use a question mark with the symbol whose value is to be determined.
Determine the amount of money FrostBank might loan a housing developer who will repay the loan 2 years from now by selling eight water-view lots at $240,000 each. Assume the bank’s interest rate is 10% per year.
During the early settlement of Quebec, the actions of Samuel de Champlain
A. illustrated a lack of French interest in developing political and economic relations with Indian tribes of the region. B. led to France's lasting alliance with the Iroquois tribes. C. were marked by tension and violence with the Hurons. D. included forging a pivotal alliance with the Hurons that inspired the lasting hatred of the Iroquois. E. angered the government of King Louis XIV of France.
Undersized suction lines:
A) Can reduce system efficiency because of a high pressure drop. B) Can cause poor oil return because of high refrigerant velocity. C) Can cause poor oil return because of low refrigerant velocity. D) Can reduce system efficiency because of a low pressure drop.