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PLTW Types of Holes Quiz

Total questions: 13

Worksheet time: 17mins

Name
Class
Date
1.

What kind of hole is highlighted in green? Select all that apply.

a)

Counterbore

b)

Countersink

c)

Simple

d)

Blind

e)

Through

2.

What kind of hole is this? Assume the hole does NOT go all the way through, select all that apply.

a)

Counterbore

b)

Countersink

c)

Simple

d)

Blind

e)

Through

3.

What kind of hole is this? Select all that apply.

a)

Counterbore

b)

Countersink

c)

Simple

d)

Blind

e)

Through

4.

What kind of hole is hole A? Select all that apply

a)

Counterbore

b)

Countersink

c)

Simple

d)

Blind

e)

Through

5.

For the countersink hole on the left, what does the x 82⁰ mean?

a)

It's the diameter of the hole

b)

It's the diameter of the countersink

c)

It's the depth of the countersink

d)

It's the angle made where the two countersink lines meet

6.

What is the depth of the counterbore?

a)

THRU

b)

0.251

c)

7/16

d)

1/4

e)

0.001

7.

What's the tolerance of the 0.251 diameter THRU hole?

a)

0.251

b)

7/16

c)

1/4

d)

0.001

8.

Which hole note is written correctly, for the counterbore hole on the LEFT?

a)

∅.438THRU

⊔∅.281ↆ9/32

b)

∅.281THRU

⊔∅.438ↆ0.281

c)

∅.438THRU

⊔∅.438ↆ.281

d)

∅.281THRU

⊔∅.281ↆ.438

9.

Which hole note is written correctly, for the counterbore hole on the RIGHT?

a)

∅.442THRU

⊔∅.781ↆ9/16

b)

∅.442THRU

⊔∅.562ↆ9/16

c)

∅.562THRU

⊔∅.781ↆ.442

d)

∅.781THRU

⊔∅.562ↆ.442

10.

Select the symbol for DIAMETER

a)
b)
c)
d)
e)

Counterbore

11.

Select the symbol for COUNTERBORE

a)
b)
c)
d)
e)

Counterbore

12.

Select the symbol for COUNTERSINK

a)
b)
c)
d)
e)

Counterbore

13.

Select the symbol for HOLE DEPTH

a)
b)
c)
d)
e)

Counterbore