Growsafe Mixing and Loading Agrichemicals 3

Question 1

After completing the three-rinse procedure, what should be done with empty agrichemical containers in NZ?

Accepted Answer

Puncture them and dispose of through an approved collection scheme such as AgRecovery

Answer

After triple-rinsing, containers must be punctured to prevent re-use and disposed of through NZ's approved container collection schemes such as AgRecovery to ensure safe, compliant disposal.

Question 2

What is the main practical hazard created by excessive foam when filling a spray tank?

Accepted Answer

Foam can cause the tank to overflow, creating a spill and contamination hazard

Answer

Excessive foam can cause the spray tank to overflow before the true liquid level is reached, resulting in chemical spills that contaminate the environment and create safety risks.

Question 3

When should you calibrate your spray equipment in relation to mixing agrichemicals?

Accepted Answer

Before mixing so you know exactly what volume of spray mixture is required

Answer

Calibrating before mixing allows you to calculate the exact volume of spray mixture needed, preventing waste and ensuring you prepare the correct amount at the right rate.

Question 4

What must you do if two agrichemicals you want to use are listed as incompatible?

Accepted Answer

Do not mix them together; apply each product in a separate spray operation

Answer

Incompatible products must never be combined; incompatibility can cause reduced efficacy, physical separation, equipment damage, or the creation of hazardous by-products.

Question 5

What is the correct way to measure a small quantity of liquid agrichemical concentrate for mixing?

Accepted Answer

Use a clean measuring cylinder dedicated solely to that chemical

Answer

A dedicated, clean measuring cylinder ensures accurate dosing and prevents cross-contamination between different chemical products.

Growsafe Practice Test

Growsafe Practice Test

Growsafe Mixing and Loading Agrichemicals 3