Day 3 Progress Check: Fasteners 2 Flashcards
Which factor is NOT considered when setting up a quality shop head in riveting?
Color of the rivet
What kind of materials would you use a drill bit with a 150-degree angle?
Plastics
Where would you use a Dzus fastener?
On aircraft cowlings
In riveting, what does three taps from a team member indicate?
The rivet is bad and must be removed
Which rivet is commonly used for very thin sheet metal applications?
NAS1097
What is the main role of Nut Plates?
To allow bolts and screws to be attached without a wrench
For what purpose is the next larger size fastener used when drilled rivet holes are enlarged beyond tolerances?
To fit the holes properly while maintaining pitch and edge margin
Which rivet head style is used where aerodynamic smoothness is required?
Countersunk head
What is the optimal drill bit angle for drilling through aluminum?
118 degrees
What does the term ‘bucking bar’ refer to?
A tool used to shape rivets during installation
What is the most important criterion when selecting Rivnuts?
Grip length
What is indicated by smiles on the manufacturer’s head of a rivet?
That the rivet is damaged and needs removal
Why should corners be rounded before installation as noted in repair documents?
To prevent stress concentrations
What type of rivet would be chosen for joining .032 and .040 inch thickness sheet metal?
1/8 inch diameter rivet
What does the rivet number AN470AD4-5 indicate?
4/32 inch diameter and 5/16 inch length
What does a dimpling process involve?
Indenting the metal for a flush rivet
What is a joggle in aircraft fasteners?
An adjustment in the metal for joining pieces without stress
Which material is recommended for Clecos when working with a 3/32 hole?
Silver
What type of Cleco would you use for a 1/8 inch hole?
Copper
What kind of failure is preferred in a riveted joint?
Shear failure
