The difference between gross diameter and nominal diameter for the rivets up to 25mm diameter is
|A. 1.0 mm|
B. 1.5 mm
C. 2.0 mm
D. 2.5 mm
The Correct Answer Is:
- B. 1.5 mm
Gross diameter refers to the physical dimension of the rivet, while nominal diameter refers to its standardized measurement. Therefore, nominal diameters are used as a reference for ordering and measuring, whereas gross diameters are the rivets’ actual sizes. There is a 1.5mm difference between the gross diameter and nominal diameter of rivets up to 25mm diameter, meaning that the rivet is actually 1.5mm wider than it is nominally.
The difference between the nominal and gross diameters of rivets plays an important role in determining how strong and durable the joint will be. There may be times when a rivet with a larger nominal diameter may not fit into a hole or fastening area designed for a smaller rivet. A rivet with a larger gross diameter will have a higher tensile strength and will provide a stronger joint.
The nominal diameter of rivets should not be the only consideration when choosing them; other factors such as the material, head style, length, and others can influence their performance and suitability.
When selecting or using rivets, the difference between nominal and gross diameter should be considered, as it impacts the strength of the rivet and its suitability for a specific application. The proper selection of rivets and the successful completion of a project can be ensured by knowing this difference.