To symbolize a ground point made by physically driving an object such as a rod or pipe into the ground, a(n) _____ ground symbol is used.
A. chassis
B. circuit
C. earth
D. supply
Answer: C
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The horsepower of an electric motor is found with the formula hp = 6.2832T (rpm)/33,000, where hp equals horsepower, T = torque in pound-feet (lb-ft), and rpm = revolutions per minute. Solve for T when hp = 2.0, and rpm = 2300. Round the answer to 2 decimal places.
Fill in the blank(s) with the appropriate word(s).
Plants suffering from less-than-adequate indoor humidity have ____
a. shallow roots c. brown leaf margins and tips b. “droopy” leaves and stalks d. black leaf margins and tips
Circulating water over the evaporator while the ice is freezing:
A) Keeps air bubbles and solids from freezing in the ice. B) Increases the air bubbles in the ice. C) Adds interesting swirled effects in the ice patterns. D) Eliminates the need for a reservoir float.
What is the main cause of bearing failure?
What will be an ideal response?