Exam (elaborations)
QAL PLANT AGRICULTURE QUESTIONS AND ANSWERS 2024
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QAL PLANT AGRICULTURE QUESTIONS AND ANSWERS 2024
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QAL PLANT AGRICULTUREHand-operated Granule Applicator - ANSWERS-used in landscape, aquatic, and
some Ag areas, suitable for granules or pellets, suitable for small areas, easy to
use
Mechanically Driven Granule Applicator - ANSWERS-used in turf, landscape, and
Ag areas, suitable for granules or pellets, requires accurate calibration
Powered Granule Applicator - ANSWERS-used in Ag areas-usually row crops, and
in some large landscape areas, suitable for granules or pellets, requires frequent
servicing and cleaning, some units have blowers or a boom to distribute granules
Describe safe and effective practices for cleaning application equipment -
ANSWERS-use clean water, keep screens in place, use chemicals that are
compatible with the sprayer and pump, properly clean nozzles, flush sprayers
before use, clean sprayer after use
List the tools needed for calibration - ANSWERS-stopwatch, measuring tape,
calibrated container, scale, pocket calculator, pressure gauge, flowmeter, flagging
tape
List the variables that must be measured to calibrate a sprayer - ANSWERS-tank
capacity, travel speed, flow rate, spray swath width
, Servicing Spray Equipment - ANSWERS-flush tank and pumping system with clean
water, inspect hoses for cracks and leaks, clean and replace all filter screens,
check nozzles for wear and clean, lubricate all bearings and moving parts, make
sure pressure gauge is working properly by testing it against an accurate gauge
Calculating Nozzle Output - ANSWERS-to determine the output of each nozzle,
collect liquid over a measured period of time, make sure the sprayer is operating
at the pressure that would be used under actual use
Calculating the Travel Speed of Application Equipment - ANSWERS-1. Convert
minutes and seconds into minutes by dividing the seconds by 60
2. Get the average run time by adding the converted minutes from each run and
dividing by the number of runs
3. Divide the measured distance by the average time, this tells how many feet
were traveled per minute
4. If you need M.P.H, divide the feet per minute figure by 88 (the number of feet
traveled in 1 minute at 1 mile per hour
Calculating Gallons per Minute Output for Low-Pressure Sprayers - ANSWERS-1.
Determine the gallons per minute output of each nozzle by dividing the fluid
ounces collected by the time (in seconds) and multiplying the result by 0.4688
2. Compute the percentage of variation from the rated nozzle output. Divide the
actual gallons per minute output by the rated output. Subtract 1 from this
number and multiply by 100
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