Which of the following results when the blower is arranged to blow air into the combustion chamber?

a. induced draft
b. reduced draft
c. forced draft
d. primary air


ANSWER: c

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Inverters are also known as ____.

a. thyristors b. diodes c. oscillators d. rectifiers

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The pragmatists were a school of American philosophers who emphasized

A. the provisional and fallible nature of knowledge and the value of ideas that solved problems. B. that most academic knowledge was based on bourgeois ideas that oppressed the working class. C. that the traditional Greek ideals of Plato and Aristotle should be revived. D. that scientific experimentation provided a new and absolutely certain basis for knowledge. E. All of these choices are correct.

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Which of the following will increase the evaporation (E) from the soil surface?

A) the use of no-till culture B) plastic mulch C) adding straw mulch to the soil surface D) stubble mulch farming E) none of the above

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What tool is used to remove the hex head machine screws in equipment panels?

A) Adjustable wrench B) The nut driver C) Locking pliers D) Phillips head screwdriver

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