The effective calcium carbonate (ECC) rating of a liming material is determined by its
a. cation exchange capacity
b. base saturation and pH
c. active and reserve acidity
d. purity and fineness
Ans: d. purity and fineness
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What happens if the steam trap at the outlet of a heating coil is stuck in the closed position?
A) Steam flow through the coil will be excessive and air temperatures will be too high. B) Steam flow through the coil will stop and the air temperature will be too low. C) The boiler will stop producing steam. D) The steam coil will flood with condensate water.
Specific gravity is the weight of a metal compared to the weight of _____
a. one square foot of dry sand b. one square foot of water c. an equal volume of dry earth d. an equal volume of water
Which of the following leads to cleanup costs?
A. Overfilling B. Pulling a vacuum on a tank while emptying C. Putting wrong or off-spec material in a vessel D. All of the above
Checking all energy sources, such as electricity, is a typical task found on a(n) _____.
a. pre-job safety briefing form b. Heinrich triangle illustration c. first-aid procedure manual d. accident cost worksheet