Dimension tolerance annotation in AutoCAD - Interactive Code Practice

Practice - 5 Tasks

1fill in blank

easy

Complete the code to add a basic dimension tolerance annotation in AutoCAD.

AutoCAD

DIMTOL [1]

Drag options to blanks, or click blank then click option'

ARESET

BOFF

CSHOW

DON

Attempts:

3 left

💡 Hint

Common Mistakes

Using OFF disables tolerance annotation.

RESET clears settings but does not enable annotation.

SHOW is not a valid DIMTOL option.

Turning DIMTOL ON enables dimension tolerance annotation in AutoCAD.

2fill in blank

medium

Complete the code to set the tolerance type to symmetric.

AutoCAD

DIMTOLT [1]

Drag options to blanks, or click blank then click option'

ASymmetric

BDeviation

CLimit

DBilateral

Attempts:

3 left

💡 Hint

Common Mistakes

Choosing Bilateral sets different positive and negative values.

Limit and Deviation are other tolerance types.

Misspelling the keyword causes errors.

DIMTOLT Symmetric sets the tolerance type to symmetric in AutoCAD.

3fill in blank

hard

Fix the error in the code to correctly set the upper tolerance value.

AutoCAD

DIMTOLU [1]

Drag options to blanks, or click blank then click option'

A-0.05

B5

C0.05

D0,05

Attempts:

3 left

💡 Hint

Common Mistakes

Using negative values for upper tolerance.

Using commas instead of dots for decimals.

Using whole numbers without decimal when decimals are needed.

The upper tolerance value must be a positive decimal number without commas.

4fill in blank

hard

Fill both blanks to set the lower tolerance and tolerance display mode.

AutoCAD

DIMTOLL [1]
DIMTOLT [2]

Drag options to blanks, or click blank then click option'

A-0.03

B0.03

CBasic

DLimit

Attempts:

3 left

💡 Hint

Common Mistakes

Using positive value for lower tolerance.

Choosing Basic mode instead of Limit for display.

Mixing up the commands DIMTOLL and DIMTOLT.

DIMTOLL sets the lower tolerance value (negative), and DIMTOLT sets the display mode to Limit.

5fill in blank

hard

Fill all three blanks to create a dimension style with tolerance and set tolerance precision.

AutoCAD

DIMSTYLE [1]
DIMTOL [2]
DIMTP [3]

Drag options to blanks, or click blank then click option'

AMyStyle

BON

C2

DOFF

Attempts:

3 left

💡 Hint

Common Mistakes

Turning DIMTOL OFF disables tolerance display.

Using wrong style name or missing it.

Setting precision to invalid values.

Create a dimension style named 'MyStyle', turn tolerance annotation ON, and set tolerance precision to 2 decimal places.

Practice

1. What is the main purpose of dimension tolerance annotation in AutoCAD?

easy

A. To show allowable size variation in a dimension

B. To change the color of dimension lines

C. To add text notes unrelated to size

D. To create 3D models from 2D drawings

Solution

1. Step 1: Understand dimension tolerance annotation

   Dimension tolerance annotation indicates how much a dimension can vary and still be acceptable.

2. Step 2: Identify the correct purpose

   Showing allowable size variation matches the definition of tolerance annotation.

3. Final Answer:

   To show allowable size variation in a dimension -> Option A

4. Quick Check:

   Dimension tolerance = allowable size variation [OK]

Hint: Tolerance shows size limits, not colors or notes [OK]

Common Mistakes:

• Confusing tolerance with color or text formatting
• Thinking tolerance creates 3D models
• Ignoring the size variation meaning

2. Which AutoCAD command is used to set the style of dimension tolerance display?

easy

A. DIMTM

B. DIMSTYLE

C. DIMLINEAR

D. DIMEDIT

Solution

1. Step 1: Recall commands related to dimension tolerance

   The DIMSTYLE command manages overall dimension styles, including tolerance display settings.

2. Step 2: Compare with other commands

   DIMTM is not a standard AutoCAD command; DIMLINEAR creates linear dimensions, DIMEDIT edits dimensions but does not set tolerance style.

3. Final Answer:

   DIMSTYLE -> Option B

4. Quick Check:

   DIMSTYLE sets tolerance display style [OK]

Hint: Use DIMSTYLE to set tolerance style, not DIMTM [OK]

Common Mistakes:

• Choosing DIMTM which is not a standard command
• Confusing DIMLINEAR with tolerance settings
• Using DIMEDIT which edits dimension text

3. Given the following AutoCAD commands sequence:

DIMTM
Set Tolerance Display to Limits
DIMTOLJ
Set Tolerance Justification to Above

What will be the effect on the dimension tolerance annotation?

medium

A. Tolerance values will show as plus/minus and appear inside the dimension line

B. Tolerance values will be hidden and appear below the dimension line

C. Tolerance values will show as limits and appear above the dimension line

D. Tolerance values will show as limits but appear below the dimension line

Solution

1. Step 1: Analyze DIMTM setting

   Setting Tolerance Display to Limits means the tolerance shows as upper and lower limit values.

2. Step 2: Analyze DIMTOLJ setting

   Setting Tolerance Justification to Above places the tolerance text above the dimension line.

3. Final Answer:

   Tolerance values will show as limits and appear above the dimension line -> Option C

4. Quick Check:

   Limits + Above = Tolerance values will show as limits and appear above the dimension line [OK]

Hint: Limits means upper/lower values; Above means text position [OK]

Common Mistakes:

• Mixing up limits with plus/minus display
• Confusing text position above vs below
• Ignoring the effect of DIMTOLJ

4. You set the tolerance display style using DIMTM to 'Symmetrical' but the tolerance text does not appear on your dimension. What is the most likely cause?

medium

A. Tolerance values are set to zero or missing

B. The dimension style is locked and cannot show tolerance

C. You forgot to run DIMTOLJ to position the text

D. The dimension line is too short to show tolerance

Solution

1. Step 1: Understand Symmetrical tolerance display

   Symmetrical tolerance shows plus/minus values around the dimension.

2. Step 2: Identify why text might not appear

   If tolerance values are zero or missing, no text will show even if style is set.

3. Final Answer:

   Tolerance values are set to zero or missing -> Option A

4. Quick Check:

   Zero tolerance means no text shown [OK]

Hint: Check tolerance values before adjusting text position [OK]

Common Mistakes:

• Assuming DIMTOLJ is required to show text
• Blaming dimension style lock without checking values
• Thinking line length hides tolerance text

5. You need to annotate a dimension with a tolerance that shows upper and lower limits clearly above the dimension line, but your drawing has overlapping text. Which combination of commands and settings will best solve this?

hard

A. Use DIMTOL to hide tolerance and manually add text above

B. Use DIMTM to set Symmetrical display and DIMTOLJ to set tolerance text to Centered

C. Use DIMTM to set Deviation display and DIMTOLJ to set tolerance text to Below

D. Use DIMTM to set Limits display and DIMTOLJ to set tolerance text to Above

Solution

1. Step 1: Choose tolerance display style

   Limits display shows upper and lower tolerance clearly, which fits the requirement.

2. Step 2: Position tolerance text

   Setting tolerance text to Above via DIMTOLJ moves text above the dimension line to avoid overlap.

3. Step 3: Evaluate other options

   Symmetrical or Deviation do not show limits clearly; hiding tolerance loses info; manual text is less efficient.

4. Final Answer:

   Use DIMTM to set Limits display and DIMTOLJ to set tolerance text to Above -> Option D

5. Quick Check:

   Limits + Above = clear, non-overlapping tolerance [OK]

Hint: Limits + Above text avoids overlap and shows clear tolerance [OK]

Common Mistakes:

• Choosing symmetrical which shows plus/minus, not limits
• Setting text below causing overlap
• Hiding tolerance instead of adjusting display