An air sonar detects the echo TOF from an object to be 10 milliseconds. The object range equals ___(x.xx) m.

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


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A light spray of water can be used during demolition in order to _____.

a. cool the construction debris b. clean the construction debris c. keep dust from spreading d. keep the workers cool

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The percent of elongation is found by ____.

A. dividing the elongation by 100 B. dividing the elongation by the gauge length and multiplying by 100 C. dividing the gauge length by 100 D. dividing the gauge length by the elongation and multiplying by 100

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____ is the AWS specification for chemical composition and physical properties for electrodes.

A. Filler metal specification number B. Base metal specification number C. Backing strip material specification D. Electrode specification

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Which of the following is not true regarding spot welds?

A. It is usually done to hold sheet metal together. B. It is stronger than a projection weld. C. It is represented by the same symbol as a projection weld. D. It is a resistance welding process.

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