What is the “pure ice” that commercial cube ice makers produce?
a. Ice that is hard and is in a cube form.
b. Ice that freezes without air, chlorine, or minerals in it.
c. Ice that is pushed through an extruder to squeeze out the excess water.
b. Ice that freezes without air, chlorine, or minerals in it.
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If a batch of compound is found to be moldy or contaminated, discard it, then _____.
a. steam-clean the container and tools b. soak the container and tools at least overnight in a chlorine-bleach solution c. hose down the container and tools, and rinse with hydrogen peroxide d. rinse the container and tools with warm water
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. A 2 200 lbm, finely ground mixture of salt and sand is to be separated by adding 1 500 lbm of water to dissolve the salt and then filtering the salt solution from the insoluble sand. The resulting salt solution is then separated by the distillation of 1 350 lbm of water, leaving a final solution that is 92 percent salt and 8.0 percent water. Determine the percentages of salt and sand in the original mixture.
What will be an ideal response?
A rabbit's digestive system allows the animal to use such ____________________ as alfalfa and other fibrous plant material.
Fill in the blank(s) with the appropriate word(s).
Technician A says all computer system problems can be solved by using a scan tester. Technician B says many computer-controlled components can be tested with an ohmmeter or voltmeter. Who is correct?
A. A only B. B only C. both A and B D. neither A nor B