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Sandpaper 101

Total questions: 15

Worksheet time: 9mins

Name
Class
Date
1.

Why is sandpaper similar to saw blades?

a)

The sharp edges that cut the wood the way a saw blade does.

b)

Because you use it while woodworking.

c)

You can use it like a saw.

d)

Because you can put it in a machine to use it.

2.

What are the two different types of sandpaper?

a)

Smooth and Rough.

b)

Yellow and Blue.

c)

Commercial and Industrial.

d)

Paper and fabric.

3.

Is 40 grit sandpaper fine or course?

a)

Fine

b)

Course

4.

What are the classifications of sandpaper?

a)

Coarse, Medium, fine, very fine

b)

Coarse, Medium and Super Fine

c)

Coarse, Medium, Fine, Very Fine, Extra Fine, Super Fine

d)

Coarse, Medium and Fine

5.

What are the 3 different uses for Coarse, Medium and fine. In that order.

a)

Heavy sanding, sanding between coats of paint, final sanding.

b)

Smoothing the surface, Stripping paint, removing dust spots.

c)

Heavy sanding and stripping, Smoothing of the surface, Final sanding before finishing.

d)

Heavy sanding, sanding between coats, Fine sanding of the finish.

6.

What are the 3 characteristics of commercial and industrial grade sandpaper?

a)

Grit, paper and size.

b)

Grit, fabric and uses

c)

The abrasive grit, the backing material and the bonding agents.

d)

Color, uses and wear.

7.

Why can sanding with 400-grit be a waste of time before finishes?

a)

Because the wood will show scratches.

b)

Because it would take too long.

c)

Because 400-grit will tend to seal off the wood grain and prevent finishes from penetrating.

d)

Because it won't look as nice.

8.

If you start sanding with 220-grit and then sand with 80-grit, would this be considered going through the grits?

a)

True

b)

False

9.

Why is open coat sandpaper preferred for woodworking?

a)

Because it clogs up slowly.

b)

Because it takes paint off.

c)

Because open spaces between the grits help prevent clogging by giving sawdust a place to go.

d)

Because it works faster.

10.

Why are aluminum oxide and garnet sandpaper preferred for woodworking?

a)

Because they smooth the wood better.

b)

Because they are both natural elements.

c)

Aluminum oxide exhibits friability and Garnet is excellent for final sanding.

d)

Because Aluminum oxide and Garnet both don't wear out.

11.

Which sandpaper is harder, Ceramic or Silicon Carbide?

a)

Ceramic

b)

Silicon Carbide

12.

When sanding your project, how do you know when to stop sanding?

a)

When your wood feels smooth.

b)

When you get tired.

c)

When you finish with 180-220-grit sandpaper, in most cases.

d)

When your teacher tells you can.

13.

True or false, Industrial grade sandpapers use abrasive grit material that is stronger and less likely to bread down or wear out.

a)

True

b)

False

14.

True or False, Commercial grade sandpapers tend to use low-grade fabric and backing material.

a)

False

b)

True

15.

True or False, the bonding agent is what holds the layers of paper together.

a)

True

b)

False