GD&T Tolerances & Fits in Engineering Drawings

Question 1

What does the symbol ⊗ represent in GD&T?

Accepted Answer

Location of a datum feature.

Answer

Maximum material condition.

Answer

Profile of a surface.

Answer

Tolerance for roundness.

Question 2

What does the fit symbol Ⓕ represent in GD&T?

Accepted Answer

The fit between two parts.

Answer

The type of material used for the parts.

Answer

Maximum allowable size of a feature.

Answer

The surface finish of a feature.

Question 3

What does the term 'clearance fit' refer to in GD&T?

Accepted Answer

A fit that allows for movement between parts.

Answer

A fit with no movement between parts.

Answer

A tight fit that requires force to assemble.

Answer

A fit used only for fastening components.

Question 4

Which symbol in GD&T represents the concept of 'true position'?

Accepted Answer

⟘.

Answer

⊥.

Answer

.

Answer

⊗.

Question 5

What is the function of the 'maximum material condition' (MMC) symbol in GD&T?

Accepted Answer

To specify the limits of size for a part.

Answer

To represent the smallest allowable size of a feature.

Answer

To represent a part's weight.

Answer

To specify the position of a feature.

Question 6

What is an interference fit in GD&T?

Accepted Answer

A fit that requires force to assemble.

Answer

A fit that allows movement between parts.

Answer

A fit that is used to prevent assembly.

Answer

A fit with no tolerance.

Question 7

What does the term 'limit fit' mean in GD&T?

Accepted Answer

A fit that limits the tolerances of parts.

Answer

A fit where the parts are identical.

Answer

A fit that allows for flexibility.

Answer

A fit that does not require precision.

Question 8

How does a clearance fit impact the functionality of mechanical components?

Accepted Answer

It allows movement between components.

Answer

It allows tight fitment of components.

Answer

It causes binding of parts.

Answer

It restricts movement.

Question 9

What does 'free fit' mean in engineering drawings?

Accepted Answer

There is no interference between parts.

Answer

There is some clearance between parts.

Answer

The parts are tightly constrained.

Answer

The parts are permanently fixed.