Incomplete combustion occurs when there is a lack of __________ during the combustion process.
A. CO2
B. CO
C. nitrogen
D. oxygen
Answer: D
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Follow the steps of the Systematic Approach of Section 14.4—that is, (1) identify the system, (2) determine whether the process is batch or rate, (3) construct a schematic diagram with inputs and outputs, (4) Label known material quantities or rates of flow and so on. An industry is required to clean up 4.0 t of a by-product containing both toxic and inert material. The toxic content is 15 percent; the rest is inert. The by-product is treated with 45 t of solvent resulting in an amount of dirty solvent containing 0.35 percent toxic material and a discard containing 1.2 percent toxic material, some solvent, and all the inert materials. Determine the amount of dirty solvent produced, the percentage of solvent in the discard, and the percentage of toxic substance removed in the discard.
What will be an ideal response?
Who was the Swedish botanist credited with developing the system of binomial nomenclature?
a. Charles Darwin c. Louis Pasteur b. Robert Hook d. Carolus Linnaeus
The baseplates at the bottoms of the columns are connected to the foundations at points A and D by bolts and may be assumed to act as pin supports. Joint B is rigid. At C where the bottom flange of the girder is bolted to a cap plate welded to the end of the column, the joint can be assumed to act as a hinge (it has no significant capacity to transmit moment). Compute the reactions at A and D.
Designing connection details is the responsibility of a(n) ____.
A. engineer B. CAD technician C. CAD manager D. checker