Farm Machinery Flashcards
7 cards from real Agricultural/Bioengineering practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Farm Machinery flashcards as text
What is the primary function of a PTO (Power Take-Off) on a tractor?
Answer: To transfer engine power to attached implements
The PTO shaft transfers rotational power from the tractor engine to implements such as mowers, balers, and augers.
Which tillage implement is designed to break up hardpan soil layers below normal plow depth?
Answer: Subsoiler
A subsoiler uses narrow shanks to fracture compacted layers (hardpan) at depths of 18–36 inches without inverting the soil.
On a grain combine, what component separates grain from the chaff using air flow?
Answer: Cleaning shoe
The cleaning shoe uses fans and sieves to blow chaff away while heavier grain falls through to the clean grain elevator.
A center-pivot irrigation system covers a field in what geometric shape?
Answer: Circle
Center-pivot systems rotate around a fixed central point, irrigating a circular area that can range from 40 to over 500 acres.
What does 'drawbar horsepower' measure on a tractor?
Answer: Actual pulling power delivered at the hitch
Drawbar horsepower is the usable pulling power at the tractor's hitch, accounting for drivetrain losses and traction efficiency.
Which planter component meters and delivers individual seeds at precise spacing?
Answer: Seed meter
The seed meter (or metering unit) singulates seeds and controls the rate at which they are released into the seed tube.
In sprayer calibration, if a nozzle delivers 10 oz of water in 30 seconds and the target is 15 oz, what should you do?
Answer: Increase system pressure or use a larger nozzle
Higher pressure or a larger orifice nozzle increases flow rate to reach the desired output volume.