What pollution control device contains positively charged collecting plates and a series of negatively charged wires or electrodes?
A. Flare systems
B. Baghouses
C. Coal gasification
D. Electrostatic precipitators
A. Incorrect. Flare systems are used to safely burn excess process gases that cannot be recovered, before they are released into the atmosphere.
B. Incorrect. Baghouses consist of fabric or bag filter tubes, envelopes, or cartridges designed to capture, separate, or filter particulates as the effluent gas stream passes through them.
C. Incorrect. In coal gasification, coal is converted from a solid to a gaseous state before being burned in power plants to produce electricity.
D. Correct. Electrostatic precipitators contain positively charged collecting plates and a series of negatively charged wires or electrodes.
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Ms. Clark has 21 acres of tobacco. For weed control, she applied 8.3 fluid ounces per acre of herbicide A and 2.1 pints per acre of herbicide B. She applied 310-240-270 units of fertilizer per acre. She used 46-0-0 urea at $500 per ton, 18-46-0 DAP at $708 per ton, and 0-0-50 sulfate of potash at $684 per ton. She planted the tobacco in 36-inch rows with the plants 18 inches apart in the rows.
a. How many quarts of herbicide A were applied? b. How many gallons of herbicide were applied? c. How many pounds per acre of bulk fertilizer were used? d. What did the fertilizer cost? e. What did the fertilizer cost per ton? f. How many plants were planted per acre? g. Express the total number of plants in the field using scientific notation with the correct number of significant digits.
Proper lifting usually requires the vehicle to be ________
A) Centered in the stall B) Positioned with the front wheel centered on the tire pad C) Both A and B D) Neither A nor B
The use of GPS can provide a detailed map of the boundaries of a property
Indicate whether the statement is true or false
One of two basic types of drawings cutting through an entire building or structure, ____ cut across the entire length of a building.
A. longitudinal sections B. cross sections C. lengthwise sections D. lateral sections