Which noise reducing principle used in exhaust systems is based on sound waves being reflected back toward their source?
A. absorption
B. pulsation
C. restriction
D. resonation
Answer: D
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____________________ drawings are forms of pictorial drawings that enable the viewer to see the most descriptive view of the object as a front view projected directly onto the plane of the paper.
Fill in the blank(s) with the appropriate word(s).
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Describe the trends of human population growth over the past 8,000 years
What will be an ideal response?
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A good way to learn something is to explain ideas and concepts in your own words to others in a group.
a. True b. False
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All hybrid electric vehicles use ________
A) Conventional oxygen sensors B) Coil-on-plug ignition C) SAE 10W-30 engine oil D) Variable displacement system
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