When testing combustion efficiency, the technician should measure

A) Oil pump pressure, stack temperature, ambient temperature, and CO2 flue gas percentage
B) Stack temperature, flue gas density, and flue gas water percentage
C) Stack temperature, ambient temperature, and CO2 flue gas percentage
D) Ambient temperature, return air temperature, supply air temperature, and stack temperature


C

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Which of the following is an equipment hazard associated with reactors?

A. Spill of liquid catalyst B. Rotating equipment hazards C. Erosion of equipment D. Inhalation hazard

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What is the name of the part of the beam that letter A is pointing to in Figure 2?

a. Flange
b. Leg
c. Heel
d. Web

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Combination torches are usually longer and have larger gas flow passages than the dedicated cutting torches.

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

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A(n) ____________________coordinate system is typically the most useful for circular-like phenomena.

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

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