Which of the following tools should be used to cut external (outside) threads on bolts, rods, and pipes?
A. hand tap
B. hand-threading die
C. thread chaser
D. thread file
Answer: B
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Which of the following is a (are) major source(s) of the carbon dioxide now being added to the atmosphere in excess of the amount taken out by plants?
A) destruction of natural forests B) loss of soil organic matter C) burning of fossil fuels D) all of the above E) none of the above
A more accurate rating system for air-conditioning equipment that takes into consideration operation during the complete cycle is the ____ standard.
A. ARI B. ACCA C. SEER D. EER
A two-phase system is produced by having an alternator with two sets of coils wound ____ degrees apart.
a. 60 b. 90 c. 120 d. 150
Too little stress can cause a person to
a. feel invigorated. b. be healthy and pleased with life. c. develop healthy coping techniques. d. become bored. e. become anxious about time pressures.