The gross diameter of a rivet is the diameter of_____________
Rivet Diameter Definition Explained
The question asks to define the "gross diameter" of a rivet.
Analyzing Rivet Diameters
Understanding the different diameters associated with rivets is crucial:
- Nominal Diameter: This is the diameter of the rivet shank before driving. It's the standard size designation.
- Rivet Hole Diameter: This is the diameter of the hole drilled or punched into the materials being joined. It's typically slightly larger than the nominal rivet diameter to allow for easy insertion.
- Gross Diameter (or Manufactured Diameter): This refers to the diameter of the rivet shank after it has been fully driven and formed. When driven, the rivet material expands to fill the hole, creating a tight, permanent joint. The head formation also slightly increases the overall dimensions.
Conclusion on Gross Diameter
Based on the analysis:
- Option 1 (cold rivet before driving) refers to the nominal diameter.
- Option 2 (rivet after driving) accurately describes the expanded and formed size, which is the gross diameter.
- Option 3 (rivet hole) is the diameter of the hole, not the rivet itself after forming.
Therefore, the gross diameter of a rivet is the diameter of the rivet after driving.
Important Questions from Riveted Connections
The centre of adjacent rivets in the same row are separated by a distance known as: _____.
What will be the value of bolt hole diameter for 12 mm diameter bolt as per IS 800-2007?
If the working stress in bearing in power driven rivets is 300 N/mm2 and a double riveted double cover butt joint is used to connect plates of 12 mm thick, then the strength of rivet in bearing is
(Given: The nominal diameter of rivet = 22 mm)
Generally, the diameter of a rivet hole is made larger than the nominal diameter of the rivet by
The strength of a joint in a bolted connection is 620 kN. The size of plate is 180 mm width and 20 mm thick. If the yield strength of material of plate as 250 N/mm 2 and partial safety factor as 1.1, then the efficiency of the joint is ______.
