Agricultural/Bioengineering Farm Machinery 4

Question 1

Which type of spray nozzle produces the flattest fan angle and is best for herbicide applications requiring soil incorporation?

Accepted Answer

Flat-fan nozzle

Answer

Flat-fan nozzles produce a uniform, thin spray pattern ideal for broadcast herbicide application with consistent coverage across the boom.

Question 2

On a tractor three-point hitch, Category II has a lower link pin diameter of approximately:

Accepted Answer

1-1/8 inch (28 mm)

Answer

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.

Question 3

What is the primary advantage of GPS auto-steer on planting equipment?

Accepted Answer

It reduces row skips and overlaps, improving accuracy to sub-inch passes

Answer

Auto-steer systems guide equipment along precise paths, eliminating human-error overlaps and skips that waste seed, fuel, and chemicals.

Question 4

In a grain elevator, what is the function of the 'boot' section?

Accepted Answer

It is the lower housing where grain enters the elevator belt

Answer

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.

Question 5

Which maintenance interval is most commonly recommended for changing tractor engine oil under normal field conditions?

Accepted Answer

Every 250 hours

Answer

Most modern tractor manufacturers specify engine oil changes every 250 operating hours under normal conditions, though dusty conditions may require shorter intervals.

Agricultural/Bioengineering Practice Test

Agricultural/Bioengineering Practice Test

Agricultural/Bioengineering Farm Machinery 4