The ____ current is the amount of current required to magnetize the core of the transformer.

a. primary
b. spike
c. core
d. excitation


d. excitation

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When two slings positioned at an angle of 45 degrees are being used to lift a 1,000 pound load, what is the tension on each sling? Assume a sling factor of 1.414.

a. 707 pounds b. 777 pounds c. 1,414 pounds d. 1,555 pounds

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What percent of the root zone of most plants must receive water to provide the benefits of irrigation?

a. 30 c. 50 b. 40 d. 60

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Some details that are commonly used in the architest's office are damper details.

Answer the following statement true (T) or false (F)

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Pascal's Law applies to brake systems.

Answer the following statement true (T) or false (F)

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