What is the purpose of excess air in furnace combustion?

A) Excess air improves the draft efficiency by raising the combustion gas temperature
B) Excess air is used for creating a high fire second stage of combustion
C) Excess air insures that the heat exchanger does not overheat
D) Excess air insures that all the gas is burned by making sure there is plenty of oxygen available.


D

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Give an example of a commonly used mat foundation.

What will be an ideal response?

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Technician A says that comparing the front vehicle height sensors to the rear sensors allows the ECM to determine body roll created by cornering force. Technician B says that vehicle height sensors are only located on the rear. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians D) Neither technician

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By 1519, Martin Luther was determined to

a. reform the Catholic Church’s theology while maintaining its traditional structure and institutions. b. launch a Radical Reformation that would go much further than his more conservative Protestant rivals. c. replace the traditional understanding of the relationship between human and the divine with respect to human actions and salvation. d. abandon the monastic life and marry Katherina von Bora.

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What test equipment is needed to view the pressure waveform inside the cylinder?

A) Compression tester and a DSO B) DSO and a pressure transducer C) Cylinder leakage tester and a scope D) Scan tool and compression gauge

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