IST Blueprint Reading and Technical Drawings 2

Question 1

What does the notation 'TYP' (typical) mean when used with a dimension on a blueprint?

Accepted Answer

The same dimension applies to all identical or similar features on the drawing

Answer

'TYP' means the specified dimension or feature applies to every identical or similar feature throughout the drawing, eliminating the need to dimension each one individually.

Question 2

What does a section view reveal in a technical drawing?

Accepted Answer

Internal features exposed by an imaginary cutting plane sliced through the object

Answer

A section view is created by imagining a cutting plane slicing through the object, revealing internal features such as holes, grooves, and wall thicknesses that would otherwise be hidden.

Question 3

What does placing a dimension in parentheses — such as (2.500) — indicate on a blueprint?

Accepted Answer

The dimension is a reference only and is not used to control manufacturing

Answer

A dimension in parentheses is a reference dimension, provided for information and context only; it is not used to control or inspect the manufactured part.

Question 4

What is an isometric drawing?

Accepted Answer

A three-dimensional pictorial drawing showing three faces with all axes at 120° to each other

Answer

An isometric drawing is a pictorial representation showing three faces simultaneously with all three principal axes drawn at 120° to each other (30° from horizontal), giving a 3D appearance without perspective distortion.

Question 5

On a blueprint, what does 'MAX' following a dimension (e.g., .750 MAX) indicate?

Accepted Answer

A limit dimension specifying the largest acceptable size for that feature

Answer

MAX following a dimension specifies a one-sided limit — the feature must not exceed that value; this controls features where only the upper boundary matters, such as a gap or clearance.

IST - Industrial Skills Test Practice Test

IST - Industrial Skills Test Practice Test

IST Blueprint Reading and Technical Drawings 2