Common mistakes and proper dimension in engineering drawing

The views for first angle orthographic projections, in sequence labelled as ABC are:

• A: Plan, B: Front, C: End

• A: Plan, B: End, C: Front

• A: Front, B: Plan, C: End

• A: Front, B: End, C: Plan

The views for first angle orthographic projects, in sequence labelled as ABC are:

• A: Plan, B: Front, C: End

• A: Plan, B: End, C: Front

• A: Front, B: Plan, C: End

• A: Front, B: End, C: Plan

The error in this Orthographic Projection is:

• 45 degree mitter line should be drawn to 60 degree

• Front elevation is at the wrong location

• End elevation is not drawn to same scale

• Plan is at the wrong location

The mistake in this dimension label is :

• Extension lines should not cross the dimension lines

• Mitter lines should not cross the extension lines

• Leader lines should not cross the dimension lines

• Extension lines, leader lines should not cross the dimension lines

The error in this dimension label is:

• Dimension lines being within the outline of the part,

• dimension lines crossing,

• broken extension lines,

• extension lines crossing dimensioning lines

The error in this dimension label is:

• dimension lines crossing,

• broken extension lines,

• extension lines crossing dimensioning lines,

• shortened extension lines being used.

The error in this dimension label is:

• dimension lines crossing,

• broken extension lines,

• extension lines crossing dimensioning lines,

• shortened extension lines being used.

The error in this dimension label is:

• Dimension lines being within the outline of the part,

  dimension lines crossing

• broken extension lines,

  extension lines crossing dimensioning lines

• extension lines crossing dimensioning lines,

  shortened extension lines being used

• Dimension lines being within the outline of the part,

  shortened extension lines being used

The error in this dimension label is:

• Dimension lines being within the outline of the part,

• dimension lines crossing,

• broken extension lines,

• extension lines crossing dimensioning lines

The method of dimensioning used is/are:

• Baseline dimensioning

• Chain dimensioning

• Combined dimensioning

• Double Chain dimensioning