Which of the following explorers first surveyed the Indian Ocean?

a. Admiral Zheng He
b. Marco Polo
c. Vasco da Gama
d. Ferdinand Magellan


a. Admiral Zheng He

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____________________ is the most frequently used nondestructive testing method.

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

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If a material has an R-value of 30, then the corresponding U-value will be ____.

A. 0.033 B. 0.33 C. 33 D. 330

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Light-fixture schedules typically provide fixture symbol, manufacturer's name, type, color, bulb, wattage, and remarks columns.

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

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Pressure is defined as:

A) Applied force. B) The average applied force. C) The product of density and specific volume. D) Force per unit area.

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