Placement Quiz

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Shade Trees for Energy Efficiency


Solar heat absorbed through windows and roofs increases cooling costs, and incorporating shade trees helps reduce this heat gain. Shading and transpiration (the process by which a plant actively moves and releases water vapor) from trees can reduce surrounding air temperatures by as much as 6°F. Because cool air settles near the ground, air temperatures directly under trees can be as much as 25°F cooler than those above nearby blacktop surfaces.


Designing landscapes for effective use of trees requires knowledge of the size, shape, and location of the moving tree’s shadow. To provide continuous shade or to block heavy winds, use dense evergreen trees or shrubs. To block solar heat in the summer but to let much of it in during the winter, use deciduous trees. Planting deciduous trees with high, spreading crowns (i.e., leaves and branches) to the south side of a home provides maximum summertime roof shading. Trees with crowns lower to the ground are more appropriate to the west, where shade is needed from lower afternoon sun angles.


To ensure lasting performance of energy-saving landscaping, use plant species that are adapted to the local climate. Native species, those which occur naturally in the area, are valued for their hardiness. Because they have thrived in that climate over time without human intervention, they require little maintenance once established and avoid the dangers of invasive species.


Planting trees properly is critical to the long-term success of your energy-conservation project and can raise your property value by up to five percent. Start by selecting the location for your planting. This will dictate the mature size of the tree and its needed planting space. Make sure you purchase a quality tree with a healthy root system (10 inches of container width per inch of trunk diameter at six inches above the soil line). Dig the hole to the depth of the root ball, and no deeper. Use native soil to backfill and wood chips for mulch. Staking should not be needed unless the trunk is over three inches in diameter.


Question

You work for Greene-Mann Landscaping Company. A client is looking to plant trees that can provide summer shade and block winter wind. According to the document, what type of trees should you recommend?


A.Evergreens

B.Tall deciduous trees with spreading crowns

C.Deciduous trees with lower crowns

D.Native tree species

E.Smaller shrubs

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Your break room has a new SuperBrew coffee maker. Follow the directions below to use our new coffee machine.


First, make sure the coffee machine is plugged into an electrical outlet. Next, place a coffee filter into the basket above the machine. Select one coffee packet from the top right-hand drawer; darker flavors of coffee are in darker colored packets. Pour the coffee from one coffee packet into the filter. Each coffee packet holds enough coffee for one pot. Next, pour 7 cups of water into the water tank. The coffeepot holds 6 cups of coffee. Put in extra water because some of the water will stay in the tank. Wipe off any water that spilled onto the outside of the coffeepot. The last step is to turn the coffee machine on. The coffee will be ready in 5 minutes. 


Question

You are at work and want to make some coffee. The main purpose of the document shown is to: 


A.ensure that only one coffee packet is used for each pot.

B.get more people to try a new flavor of coffee.

C.describe what happens when you put too much water in the tank of the coffee machine.

D.explain how to use the coffee machine. 

E.compare the new machine with the old one.


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