WorksheetsCH4 Measurement of Geometrical Features
Total questions: 10
Worksheet time: 5mins
What does flatness measure?
The angle between two surfaces
The distance between two points
Deviation of a surface from a perfectly flat plane
The diameter of a circular part
Which of the following is not a method to measure flatness?
Using three reference points
Measuring deviation from a laser plane
Using two perpendicular datums
Measuring on a circular flange with 120° pitch
Straightness tolerance is represented by a zone formed by:
Two concentric circles
Two parallel planes
A cylinder
Two parallel lines
What is the correct tool to measure perpendicularity in machine tools?
Sine bar
Master square
Dial caliper
Vernier protractor
What does parallelism tolerance control?
Squareness between two surfaces
Uniformity of thickness
Equidistant relationship from a datum
Surface roughness
Which equipment is commonly used for checking roundness?
Sine bar
Penta prism
Talyrond 265
Protractor
In roundness measurement, how many concentric circles define the tolerance zone?
One
Two
Three
Four
Cylindricity tolerance applies to:
Both circular and longitudinal elements
Only the circular profile
Flat surfaces only
Angular surfaces
Which feature is defined as the condition of a surface or axis at a specified angle (≠ 90°) to a datum?
Flatness
Angularity
Parallelism
Symmetry
Symmetry tolerance is defined by:
Two circles
A cone and a cylinder
A square tolerance zone
Two parallel planes centered about a median plane
