Over-fire draft on most residential oil furnaces should be __________ in. w.c.
A. -.01
B. -.02
C. -.03
D. -.04
Answer: B
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What is the current-carrying capacity for No. 6 THWN aluminum conductors in conduit run through an ambient temperature of 38°C?
a. 41A b. 44A c. 45.5A d. 50A
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Three-phase three-lead induction motors are manufactured in either a wye or ____ configuration, with a single voltage.
a. alpha b. beta c. Delta d. Gamma
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How much residue does moldboard plowing typically leave?
a. 0 to 15 percent c. 20 to 30 percent b. 10 to 25 percent d. greater than 30 percent
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Which of the following countries is NOT characterized by politically and ethnically
motivated violence?
a. India. b. Peru. c. Turkey. d. Colombia. e. All of these countries are characterized by politically and ethnically motivated violence.
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