Match each item with a statement below.
A. The non-vegetated elements of a landscape, including paving, walkways, roads, retaining walls, street amenities, fountains, and pools.
B. Used to transform slopes into level areas for buildings and yards, or to maintain tree roots near construction zones.
C. Along with vegetated trellises, rows of trees provide privacy, windbreaks, and help define the limits of outdoor living spaces.
D. Can provide permeable surfaces, reduce runoff, provide windbreaks, and help reduce local temperatures by absorbing heat from the sun.
E. Help reduce runoff and can provide free water for irrigation as well as some interior uses.
F. Depressed vegetated areas that collect surface runoff from impervious surfaces.
A. Hardscape
B. Retaining walls
C. Fences and freestanding walls
D. Softscape
E. Rainwater collection systems
F. Rain gardens
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The magnetic portion of a standard circuit breaker _____.
a. provides an instantaneous trip for high levels of current b. protects the circuit from heat damage generated by lower level currents c. prevents the device from tripping due to a short circuit d. provides a trip delay for high levels of current
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.
Three brine solutions, B1, B2, B3, are mixed. B1 is one-half of the total mixture. Brine B1 is 2.5 percent salt, B2 is 4.5 percent salt, and B3 is 5.5 percent salt. To this mixture is added 35 lbm of dry salt while 280 lbm of water is evaporated leaving 3 200 lbm of 5.1 percent brine. Determine the initial amounts of B1, B2, and B3.
What two fasteners are used with sheet metal square and rectangular duct?
A. "S" fasteners (clips) and drive clips (cleats) B. staples and tape C. self-tapping screws and draw bands D. tabs and adhesives
The most common residential control voltage is:
A) 12 V. B) 24 V. C) 230 V. D) 115 V.