What is the main difference between thermoplastics and thermosetting plastics?

Thermoplastics can be reshaped multiple times

Thermoplastics can only be shaped once

Thermosetting plastics can be recycled

Thermosetting plastics are better for the environment

Why are thermoplastics commonly used for recycling?

They can be reheated and reshaped multiple times

They are stronger than thermosetting plastics

What safety precaution should you follow when using a strip heater?

Do not touch the plastic while it's hot

Use a hammer to shape the plastic

Which plastic is used in the vacuum forming process for school projects?

High-Density Polystyrene (HIPS)

What is the primary characteristic of MDF (Medium Density Fiberboard)?

It is a type of manufactured board

What is the purpose of a resistor in a circuit?

To slow down or limit the flow of electricity

To increase the flow of electricity

To switch the circuit on and off

What is the fourth band on a resistor used to indicate?

The resistor's resistance value

Why is it important to preheat the plastic sheet before forming?

To soften the plastic for molding

What is the purpose of the vacuum in vacuum forming?

To remove air from under the plastic

What should you do if the plastic doesn't form correctly around the mold?

Stop the process and reset the machine

What is the role of the clamping frame in vacuum forming?

To remove the air under the plastic

Yr 09 Xmas Wednesday (5&6)

Authored by P Hribar

Design

8th Grade

Used 1+ times

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MULTIPLE CHOICE QUESTION

30 sec • 1 pt

A red sign with a diagonal line. What does this type of sign indicate?

Mandatory action

Emergency exit

Prohibition

Hazard warning

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Refer to the blue circle sign in the image. What action must be taken?

Do not enter

Wear safety goggles

Beware of high voltage

Emergency exit

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Observe the yellow triangle in the image. What type of sign is this?

Prohibition sign

Mandatory sign

Emergency exit sign

Hazard warning sign

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Examine the green rectangle sign in the image. What does this sign communicate?

Prohibition

Hazard warning

Safe condition (Emergency exit)

Mandatory action

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Look at the red diamond sign in the image. What hazard is likely being indicated?

Environmental hazard

Emergency exit

Flammable material

Wear protective equipment

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What color and shape are prohibition signs?

Blue circle

Green rectangle

Red circle with a line through it

Yellow triangle

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is an example of a mandatory sign?

Do not run

Wear eye protection

Fire exit

High voltage

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Yr 09 Xmas Wednesday (5&6)

A red sign with a diagonal line. What does this type of sign indicate?

Refer to the blue circle sign in the image. What action must be taken?

Observe the yellow triangle in the image. What type of sign is this?

Examine the green rectangle sign in the image. What does this sign communicate?

Look at the red diamond sign in the image. What hazard is likely being indicated?

What color and shape are prohibition signs?

Which of the following is an example of a mandatory sign?

Emergency signs are usually:

What is the shape of a sign that indicates emergency procedures, such as fire exits?

A red diamond with a white background is used to indicate:

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