10. You would like to catch the rainwater off your greenhouse to irrigate the crops inside. Your greenhouse dimensions are 100’ x 72’. What would be the smallest size holding tank required for capturing all of a 1.5” rainfall (in gallons). A cubic foot holds approximately 7.5 gallons. a. 7,000 gallons b. 900 gallons c. 5,000 gallons d. 7,500 gallons
10. You would like to catch the rainwater off your greenhouse to irrigate the crops inside. Your
greenhouse dimensions are 100’ x 72’. What would be the smallest size holding tank required for
capturing all of a 1.5” rainfall (in gallons). A cubic foot holds approximately 7.5 gallons.
a. 7,000 gallons
b. 900 gallons
c. 5,000 gallons
d. 7,500 gallons
11. You have a garden that is 125’ x 125’ and are setting up a sprinkler system for irrigation.
Each sprinkler can cover 1000 ft2 and uses 3.0 GPM. The flow rate of your water source is 14
GPM. How many zones will be required to irrigate this area?
a. 2
b. 3
c. 4
d. 5
12. For a strawberry field, we need to calculate how many strawberry plugs to order. We have
6,300 feet of bed to plant. Each bed will have two rows of strawberries that are spaced 18 inches
down the row. How many plugs should we order if we want 5% more than the exact amount?
a. 4,200
b. 4,410
c. 8,400
d. 8,820
13. You want to plant beets on 3– 580 foot beds. Each bed has 5 rows of beets. The desired
planting rate is 0.5 oz. of beet seed per 100 feet of row. How much beet seed will it take to plant
all 3 beds
a. 43.5 oz
b. 87.0 oz
c. 8.7 oz
d. 17.4 oz
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