Which of the following is NOT part of the exhaust system?

A. catalytic converter
B. turbocharger
C. pyrometer
D. charge air cooler


Answer: D

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One of a species resembles that of another variety, though there are no differences that are consistent and inherited

Indicate whether the statement is true or false

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Which of the following statements about fuel cells is NOT true?

A. A single fuel cell produces very low voltage, normally less than 1 volt. B. A fuel cell produces electricity through an electrochemical reaction that combines hydrogen and oxygen to form water. C. A fuel cell is composed of two electrodes coated with a catalyst and separated from each other by an electrolyte and from the case by separators. D. In a fuel cell, catalysts are used to ignite the hydrogen; this causes a release of electrons or electrical energy.

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If any crankshaft is ground, it must also be ________

A) Chrome plated B) Externally balanced C) Polished D) Shot peened

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When is the gas valve energized on an induced-draft furnace that uses hot surface ignition?

A) After the draft switch closes to prove the draft B) On the initial call for heat C) After the igniter has been energized D) At the same time the induced draft blower is energized

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