The unit of flow measurement is primarily based on __________.

A. weight
B. flow rate
C. velocity


Answer: B

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True or False: Section 250.54 of the NEC states that the earth provides an effective ground-fault current path.

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

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? Size and physical characteristics should be reviewed by both the contractors and the _______________.

Fill in the blank(s) with the appropriate word(s).

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What was the impact of the Pacific Railroad Act?

A. The federal government became a major investor in the transcontinental railroad. B. The price of cotton rose as new railroads fueled demand and enhanced Southern power. C. The British moved through the creation of a new fleet to blockage U.S. cotton exports. D. The price of steel rose, fueling economic interdependence with newly free Canada. E. Private lands were seized by the federal government and gifted to the railroads.

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The framework of a cooling tower most closely resembles.

a. steel and metal frame b. white pine column c. plastic screw seams and plates d. treated post and beam

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