Dimensioning Quiz

WHAT IS DETAILED DRAWING?

• A detailed drawing is an orthographic projection, complete with all the dimensions and specifications needed to manufacture the object.

• A detailed drawing is a simple sketch without dimensions.

• A detailed drawing is a 3D model of the object.

• A detailed drawing is a rough outline of the object.

WHAT IS OUR GOAL WHEN DIMENSIONING A PART?

• To provide clear and concise dimensions that include everything needed to manufacture and inspect the part.

• To make the drawing look good.

• To confuse the manufacturer.

• To add unnecessary details.

What are the features of a dimension?

• Dimensions use special lines, arrows, symbols and text.

• Dimensions are only represented by numbers.

• Dimensions do not require any symbols.

• Dimensions are only drawn in red.

How should leader lines be constructed?

• Leader lines should not cross and should point to the center of the arc or circle.

• Leader lines can cross each other freely.

• Leader lines should be drawn in thick lines.

• Leader lines are not necessary.

What is the minimum lettering height for drawings?

• 0.12 in (3 mm)

• 0.5 in (12 mm)

• 1 in (25 mm)

• 0.25 in (6 mm)

What should be avoided when dimensioning?

• Do not dimension inside an object or have the dimension line touch the object unless clearness is gained.

• It is fine to dimension inside an object.

• Dimension lines should always touch the object.

• Dimensioning is not necessary.

What is the rule regarding duplicate dimensions?

• Your part should be completely dimensioned, but not over defined. Dimensions should not be duplicated.

• Duplicate dimensions are encouraged.

• Dimensions can be repeated as many times as needed.

• There are no rules regarding duplicate dimensions.

How do we round off dimensions?

• If the third decimal place number is less than 5, we truncate after the second decimal place.

• Always round up regardless of the number.

• Rounding off is not necessary.

• Dimensions should always be whole numbers.

What is the purpose of using tolerances in dimensioning?

• Tolerances ensure that parts fit together properly during assembly.

• Tolerances are not necessary in engineering drawings.

• Tolerances only apply to aesthetic features.

• Tolerances should be avoided to simplify the drawing.

How should dimensions be placed on a technical drawing?

• Dimensions should be placed outside the object and not overlap with other lines.

• Dimensions can be placed anywhere on the drawing.

• Dimensions should always be inside the object.

• Dimensions should be written in a different color for clarity.