What is the primary purpose of corn harvesting equipment?
C
Remove ears of corn from stalks
Analysis & Theory
Corn harvesters are designed to remove ears of corn from the plant efficiently.
Which machine is specifically designed to harvest corn?
A
Combine harvester with corn head
Analysis & Theory
A combine with a corn header is used for harvesting corn by removing ears and optionally shelling them.
What is the function of the **corn head** in a combine harvester?
C
Strip and pull corn stalks into the combine
Analysis & Theory
Corn heads guide the stalks, strip the ears, and feed them into the threshing mechanism.
Which of the following is a **major component** of a corn picker?
Analysis & Theory
Snap rolls pull down stalks and snap ears off in a corn picker.
What distinguishes a **corn picker** from a combine harvester with corn head?
B
Picker only collects ears; combine can shell and clean grain
C
Picker works in waterlogged fields
D
Picker cuts the entire plant
Analysis & Theory
Corn pickers only collect ears; combines shell and clean grains during harvesting.
Why is the corn header specially designed with row spacing?
B
To match tractor tire pressure
C
To suit specific row spacing of corn crops
Analysis & Theory
Corn headers are configured to match crop row spacing for efficient harvesting without missing rows.
At what grain moisture content is corn ideally harvested mechanically?
Analysis & Theory
Corn is typically harvested at 25–35% moisture to reduce kernel damage during shelling.
Which equipment is used to separate kernels from harvested corn ears?
Analysis & Theory
Corn shellers are used post-harvest to remove kernels from the cob.
In modern harvesters, what helps minimize **kernel damage** during corn shelling?
C
Proper drum speed and concave clearance
Analysis & Theory
Controlling drum speed and clearance reduces kernel breakage during shelling.
Which is a **common cause of grain loss** during corn harvesting?
B
Incorrect header height
Analysis & Theory
Incorrect header height can miss ears or damage them, resulting in grain loss.