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
Which type of spray nozzle produces the flattest fan angle and is best for herbicide applications requiring soil incorporation?
Answer: Flat-fan nozzle
Flat-fan nozzles produce a uniform, thin spray pattern ideal for broadcast herbicide application with consistent coverage across the boom.
On a tractor three-point hitch, Category II has a lower link pin diameter of approximately:
Answer: 1-1/8 inch (28 mm)
ASABE standards define Category II three-point hitch lower link pins at 1-1/8 inch (28.6 mm) diameter, used on mid-size tractors of 45–130 hp.
What is the primary advantage of GPS auto-steer on planting equipment?
Answer: It reduces row skips and overlaps, improving accuracy to sub-inch passes
Auto-steer systems guide equipment along precise paths, eliminating human-error overlaps and skips that waste seed, fuel, and chemicals.
In a grain elevator, what is the function of the 'boot' section?
Answer: It is the lower housing where grain enters the elevator belt
The boot is the bottom housing of a bucket elevator where grain is scooped up by the buckets attached to the moving belt or chain.
Which maintenance interval is most commonly recommended for changing tractor engine oil under normal field conditions?
Answer: Every 250 hours
Most modern tractor manufacturers specify engine oil changes every 250 operating hours under normal conditions, though dusty conditions may require shorter intervals.
What is the purpose of a 'straw walker' in a conventional (non-rotary) combine?
Answer: It separates remaining grain from straw using oscillating motion
Straw walkers use eccentric crankshaft motion to agitate straw, allowing any remaining loose grain to fall through to the cleaning system.
A manure spreader set to a high application rate would typically indicate:
Answer: Slower ground speed and a larger discharge opening
Increasing application rate requires slowing travel speed and opening the discharge gate wider to release more material per acre.