Farm tools：练习题

Which farm tool is specifically designed for tightening or loosening nuts and bolts of various sizes on farm machinery?

When maintaining a hand-operated wood-cutting saw, why is it important to set the teeth by bending them slightly outward in alternating directions?

A wooden handle on a heavy-duty farm tool such as a fork or mattock has become loose. Which of the following is the most appropriate and structurally sound method to secure the head back onto the wooden handle?

Which of the following farm tools is primarily used for loosening soil and removing weeds in a small vegetable plot?

Which of the following hand tools is most appropriate for sharpening the cutting edges of other farm tools such as a hoe or a grass slasher?

State the specific use of a spanner on a farm.

Describe the correct procedure for cleaning and storing a mould-board plough after use to prevent corrosion.

Explain two specific maintenance procedures for a knapsack sprayer to ensure its longevity and prevent the contamination of different agricultural chemicals.

A farmer has a set of hand tools that are showing signs of wear and rust.

(a) Describe three general maintenance practices that should be carried out on metal hand tools, such as a saw or a file, to ensure they remain effective and last longer.
(b) Explain why it is specifically important to maintain a sprayer differently than a simple digging tool after use with farm chemicals.

Proper maintenance and correct handling of farm tools are essential for efficiency, longevity, and safety on the farm.

(a) Describe the correct procedure for maintaining a crosscut wood saw, including the use of a file, to ensure efficient cutting performance.

(b) Explain the correct steps a farm worker should take to securely replace a loose or broken wooden handle (helve) on a heavy cultivation tool, such as a hoe or pickaxe.

(c) Describe the proper method for clearing a blocked nozzle on a knapsack sprayer, and explain why using a piece of metal wire or a nail is strictly discouraged.