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BOTTLE SCHOOL | SECTION 3 KNOWLEDGE CHECK
Closures & Functionality

Section 3 Knowledge Check

Congratulations on completing the Closures & Functionality section of Bottle School!

You've learned how to read neck finish specifications, recognize common closures and dispensing systems, and understand the purpose of liners, seals, and tamper evidence.

Now let's reinforce those concepts with five simple questions.

How It Works

Choose one answer for each question, then select Check My Answers.

You'll see your score, the correct answers, and an explanation for each question immediately.

There's no passing score or limit on attempts. The purpose is to practice and learn.

Test Your Knowledge

Closures & Functionality

0 of 5 answered 0%
1. In a 24-410 neck finish, what does the number 24 represent?

In 24-410, the number 24 identifies the nominal outside neck-thread diameter in millimeters. The 410 identifies the finish style series.

2. If a bottle and cap are both labeled 28-400, is proper performance automatically guaranteed?

Matching the complete neck finish designation is an important first step. Actual dimensions, sealing design, capping conditions, and product compatibility also matter. The assembly still needs verification.

3. Which dispensing system is commonly used to dispense household cleaning liquids as a spray or stream?

Trigger sprayers are designed to dispense compatible liquids as a spray or stream. The required spray pattern and formulation compatibility should be verified.

4. What is the basic purpose of an induction seal?

Induction sealing uses a controlled electromagnetic field to heat a foil-based liner. Its compatible sealing layer bonds to the container opening and forms an inner seal.

5. What is the difference between tamper-evident and child-resistant packaging?

Tamper-evident features are intended to provide visible evidence of opening or interference. Child-resistant designs are intended to make opening difficult for young children. These are different functions.

Your Knowledge Check Results
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Great Work!

Coming Up Next

Section 4 — From Design to Finished Package

Now that you understand bottles, materials, and closures, we'll explore how packaging is manufactured, decorated, inspected, and made available.

Lesson 12: How Plastic Bottles Are Made

Lesson 13: Decoration & Customization

Lesson 14: Packaging Quality Basics

Lesson 15: Understanding Packaging Availability

Next: Lesson 12 — How Plastic Bottles Are Made →
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Understanding closures and their function is an important step toward understanding complete packaging solutions.

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