Wastes that have a pH lower than 2 or higher than 12.5 are _____.
What will be an ideal response?
Corrosive
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Which condition would cause a humidifier to provide no moisture?
a. Open solenoid valve coil windings b. Solenoid valve stuck open c. Plugged drain line d. Excessive water hammer
Describe the variables controlled in a distillation process.
What will be an ideal response?
Toilets are available with ____ flush mechanisms which use the weight of the water in the tank to evacuate the bowl.
A. pressure assist B. gravity C. power assisted D. hydro-assisted
The refrigeration process can best be described as the transferring of heat from an objectionable location to a place where the addition of this heat has __________ on the surrounding conditions.
A. great effect B. little or no effect C. moderate effect D. synthetic effect