Question

Which of the following is harvesting machine?

(A) Cotton picker
(B) Potato Digger
(C) Mower
(D) Tree shaker

Choose the correct answer from the options given below:

• A. (C) only.
• B. (A) and (B) only.
• C. (B), (C) and (D) only.
• D. (A), (B), (C) and (D).

Hint:

Ask whether each machine's job is to gather a mature crop from the field, no matter which crop it targets.

Answer 1

The Correct Option is D

Step 1: A harvesting machine is any machine used to gather a mature crop from the field, regardless of what specific crop or method it uses.

Step 2: A cotton picker (A) pulls the cotton lint from open bolls, this is harvesting cotton, so it is a harvesting machine.

Step 3: A potato digger (B) lifts potato tubers out of the soil so they can be collected, this is harvesting potatoes, so it is a harvesting machine.

Step 4: A mower (C) cuts standing forage or grass crops so they can be collected as hay or silage, this is harvesting forage, so it is a harvesting machine.

Step 5: A tree shaker (D) clamps onto a tree trunk or limb and vibrates it so ripe fruits or nuts, such as almonds, olives or citrus, fall off and are collected below, this is harvesting tree fruit or nut crops, so it is also a harvesting machine.

Step 6: Since all four machines are used to harvest some crop, even though each is built for a different crop and method, the correct answer includes all of them, option 4.