AQUACULTURE (Lesson 4) Preventive Maintenance

What will happen if you did not wash and wipe your digging blade after having contact with salt water?

• The blade will become brittle.

• The blade will become sharper.

• The blade will become more durable.

• Rust will possibly appear on the blade.

Lito observes that the tools in his farm are cluttered everywhere. What must he do to put his tools in order?

• He should hang them on a tree.

• He must sell some of his tools.

• He should give away some of his tools to his friends.

• He must provide a storage cabinet for them.

Ed just bought a new refractometer for his farm. What should he first do before using the instrument?

• Check the package for any freebies.

• Call a friend and ask for technical assistance.

• Check the durability of the instrument by hitting it with a hard object.

• Carefully read the instruction manual to ensure proper use and operating methods.

Fred is monitoring the pH level of the pond water when the instrument suddenly shut off. What could be the possible problem?

• The instrument overheated.

• The warranty of the instrument is over.

• The battery of the instrument is drained.

• The registration of the instrument has expired.

What will you do in order to obtain an accurate result when using dissolved oxygen meter?

• Calibrate it first.

• Wait for its warranty to end.

• Activate its temperature sensor.

• Refill it first with buffer solution.

What is the most common problem you will encounter after using the rake or spade in the pond?

• paint fades

• difficult to clean

• rust will instantly appear

• dirt and mud are left in the tools

Repair broken parts of the equipment only when it will be used.

• True

• False

Repair machine and equipment when in use.

• True

• False

Secure cylinders against falling.

• True

• False

Lockout faulty machines and equipment.

• True

• False