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DAM12603 M&M

Total questions: 20

Worksheet time: 7mins

Name
Class
Date
1.

What does GD&T stand for?

a)

General Dimensions & Tolerance

b)

Geometric Dimensioning & Tolerance

c)

General Drawing & Techniques

d)

Geometric Design & Testing

2.

What is the purpose of GD&T?

a)

To decorate engineering drawings

b)

To reduce machining time

c)

To control the geometry and function of parts

d)

To reduce part cost only

3.

Which symbol represents flatness?

a)

⌀

b)

⊥

c)

⌔

d)

//

4.

Which geometric control requires a datum?

a)

Flatness

b)

Straightness (of a surface)

c)

Position

d)

Circularity

5.

What does the MMC modifier mean?

a)

Maximum Measurement Control

b)

Maximum Material Condition

c)

Minimum Material Control

d)

Mechanical Material Condition

6.

A hole is at MMC when it is at its __________ size

a)

Largest

b)

Smallest

c)

Average

d)

Nominal

7.

Which GD&T symbol controls the roundness of a cylindrical feature?

a)

⌀

b)

○ (Circularity)

c)

∥ (Parallelism)

d)

⌖ (Position)

8.

Which tolerance zone is used for position control?

a)

Two parallel planes

b)

A cylinder

c)

A circle

d)

A square

9.

What does RFS mean?

a)

Regardless of Feature Size

b)

Reference Feature Surface

c)

Relative Feature Standard

d)

Required Feature Symmetry

10.

Which datum is contacted first in a datum reference frame?

a)

Tertiary datum

b)

Secondary datum

c)

Datum axis

d)

Primary datum

11.

Which GD&T control affects only the shape and not the size or location?

a)

Flatness

b)

Position

c)

Perpendicularity

d)

Concentricity

12.

The symbol ⟂ represents which geometric control?

a)

Perpendicularity

b)

Parallelism

c)

Angularity

d)

Symmetry

13.

Which condition gives bonus tolerance?

a)

RFS

b)

MMC

c)

Ideal dimension

d)

Basic dimension

14.

The three planes in a datum reference frame constrain how many degrees of freedom?

a)

3

b)

4

c)

6

d)

9

15.

A feature controlled by circularity must satisfy which requirement?

a)

Same diameter along full length

b)

Perfect circle at every cross-section

c)

Flat surface on one side only

d)

Parallel to a datum

16.

Which of the following is a profile tolerance?

a)

Profile of a line

b)

Position

c)

Straightness

d)

Parallelism

17.

The position symbol (⌖) controls which feature?

a)

Form only

b)

Orientation only

c)

Size only

d)

Location of holes, pins, or slots

18.

What symbol is used to indicate cylindricity?

a)

○

b)

⌭

c)

⌖

d)

∥

19.

Which of the following is true for GD&T?

a)

Uses fixed tolerance blocks only

b)

Provides functional tolerancing

c)

Removes the need for engineering drawings

d)

Makes parts more expensive by default

20.

The modifier-free state (no symbol) in a feature control frame indicates:

a)

MMC

b)

LMC

c)

RFS

d)

Zero Tolerance

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