GD stands for:
General Dimension
Geometric Design
Geometric Dimensioning
General Drawing
The symbol for flatness in GD is:
Ⓜ
∅
⬛
⎯
The symbol Ⓜ indicates:
Minimum Material Condition
Maximum Material Condition
Medium Tolerance
Moderate Fit
Which GD symbol is used for perpendicularity?
⊥
∠
⊤
↧
Concentricity is represented by:
⊗
⊕
◎
⊙
Which GD symbol is used for position tolerance?
Ⓢ
⌒
A feature control frame includes:
Only tolerance
Drawing number
Symbol, tolerance value, datum reference
Material info
True position defines the:
Actual location of a feature
Surface finish
Size only
Drawing scale
GD symbols are standardized by:
BIS only
ISO and ASME
Local vendors
Workers
Profile of a line symbol is:
Cylindricity controls:
Shape and size of a cylinder
Length only
Radius only
Hole location
The symbol ∅ represents:
Radius
Flatness
Diameter
Thickness
Angularity is defined between a surface and:
Horizontal only
Another surface at any angle
Only vertical
Datum axis
Parallelism ensures two surfaces are:
Random
Perpendicular
At an angle
Always equally spaced
Straightness tolerance applies to:
Length
Curves
Linear elements
Paint thickness
Which symbol indicates datum in GD?
Ⓓ
Ⓑ
—|—
Ⓐ
A tolerance zone in GD refers to:
Uncontrolled area
Area with material variation
Permitted variation in size/shape
Blueprint color
Which feature ensures accurate assembly?
Surface roughness
GD & Tolerance
File size
Drawing title
GD helps in:
Faster painting
Reducing drawings
Communicating design intent accurately
Welding job
Which type of GD symbol controls form only?
Profile
Angularity
Position
Tolerance is:
Exact size
Allowed variation in size
Product weight
Tool wear
Bilateral tolerance is given as:
+0.05
±0.05
-0.05
+0.1/-0.2
Hole basis system uses:
Shaft as base
Hole size fixed
Random dimensions
Clearance fit allows:
Tight contact
No movement
Free movement
Press fitting
Interference fit is used where:
Free rotation is needed
Loose assembly
Permanent joints
Temporary parts