GD & T
This GD&T MCQs Practice Set is designed for mechanical engineering students and working professionals preparing for interviews, viva, and job tests.
It covers fundamentals to advanced concepts including datums, material condition modifiers, form, orientation, position, profile, runout, tolerance stack-up, inspection, and real-world applications.
The questions are focused on concept clarity, practical understanding, and common industry mistakes—so you don’t just memorize definitions, you actually understand how GD&T is applied in design and manufacturing.
Perfect for strengthening core knowledge and building confidence before technical interviews.
Set 1: Basics MCQs
What is GD&T?
ASME Y14.5 vs ISO GPS
Feature of Size (FOS)
Actual Size vs Virtual Condition
Set 2: Datums & Datum Reference Frame MCQs
What is a Datum and Why It’s Needed
Primary / Secondary / Tertiary Datums
Datum Feature vs Datum Simulator
Functional vs Manufacturing Datums
Common Mistake: Wrong Datum Selection
Set 3: Material Condition Modifiers MCQs
MMC (Maximum Material Condition)
LMC (Least Material Condition)
RFS (Regardless of Feature Size)
Virtual Condition
Understanding Tolerance
Set 4: Form Tolerances MCQs
Straightness
Flatness
Circularity (Roundness)
Cylindricity
Set 5: Orientation Tolerances MCQs
Parallelism
Perpendicularity
Angularity
Axis vs Surface Control Difference
Set 6: Location Tolerances MCQs
Position Tolerance
True Position vs Coordinate Tolerancing
Position of Hole vs Shaft
Bonus Tolerance with Position
Projected Tolerance Zone
Set 7: Profile Tolerances MCQs
Profile of a Line
Profile of a Surface
When to Use Profile Instead of Position
Set 8: Runout MCQs
Circular Runout vs Total Runout
Runout vs Concentricity
When Runout is Preferred in Rotating Parts
Set 9: Tolerance Stack-Up MCQs
Worst-Case Stack-Up
Statistical Tolerance
GD&T’s Role in Reducing Stack-Up
Set 10: Inspection & Measurement MCQs
How GD&T is Checked on CMM
Functional Gauges vs CMM
Datum Setup in Inspection
Set 11: Real-World Application MCQs
GD&T for CNC Machined Parts
GD&T for Sheet Metal
GD&T for Casting & Forging
Design vs Manufacturing Trade-Offs
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