Dimensioning 1.5 PLTW

In the mulitview sketch below, why is the FRONT view the best view to represent the front of the object, even though it contains hidden lines. (Select all that apply)

• It represents the objects' most stable and natural position.

• It shows the least number of features to be dimensioned, which is always good to have in front view.

• It contains the longest feature of the object.

• It displays the most distinctive shape of the object.

How does this dimensioning example break convention?

• It includes duplicate dimensions.

• It includes dimensions that can be deduced.

• It includes extension lines that cross object lines.

• All of the above.

How does this dimension example break convention?

• It includes duplicate dimensions.

• It includes dimensions inside the object.

• It includes dimensions to hidden lines.

• It does not break any of the dimensioning conventions.

How does this dimensioning example break convention?

• It includes extension lines that cross dimension lines.

• It includes dimensions that can be deduced.

• It includes duplicate dimensions.

• It includes dimensions outside of adjacent views.

How does this dimensioning example break convention?

• It includes duplicate dimensions.

• It includes dimensions to hidden lines.

• It uses extension lines that cross.

• All of the above.

How does this dimensioning example break convention?

• It includes duplicate dimensions.

• It includes dimension lines that cross.

• It includes dimensions to hidden lines.

• It includes dimensions that can be deduced.

How does this dimensioning example break convention?

• It includes extension lines that touch the object.

• It includes dimensions outside of adjacent views.

• It includes dimensions inside the object.

• It does not break any dimensioning conventions.

The 4.0 dimension in the TOP view and the one to the left of the RIGHT view are both acceptable, even though their extension lines cross object lines, because this is the only way to dimension a hole or opening in an object.

• True

• False

The segment in the RIGHT view identified by the red arrows does not show a dimension. How, if at all, can the length of that segment be deduced?

• From RIGHT view (5-4=1)

• From TOP view (3-2=1)

• From the FRONT view (it is the horizontal 2.0 dimension)

• It cannot be deduced.