Mod 7.8 (4) Flashcards
What type of dimpling do you use a hammer to strike a male die with?
YA hammer is used to strike a male die when Radius Dimpling.
When would you use hot coin dimpling?
Hot coin dimpling is used when thick material is highy stressed.
How is the edge margin defined?
The edge margin is the distance from the center of a hole to the nearest edge of the sheet.
What do you need to know when ordering the correct grip length rivets for a repair?
The material thickness and the diameter of the holes.
Which section of the fastener quadrant gives information about welding?
South East section gives information about welding
What determines the hole diameter for a skin repair?
The thickness of the thinner sheet determines the hole diameter for a skin repair.
What is the rule of thumb for measuing the bucked tails size to?
1.5 times the diameter and 0.5 times the height.
What does the letter N in a fastener quadrant represent?
The letter N represents that the head is on the near side.
When there is a box around a fastener code, what does it indicate?
A box indicates that it is a fluid tight fastener.
What form of riveting is recommended for good seating of a countersink?
Indirect riveting
On a fastener quadrant where would you find information about grip length?
Grip lenth information is in the South East quadrant.
What are the advantages of rivets?
Elasticity, cheap and durable to shear forces.
What is the edge distance?
The edge distance is is 2-2.5 times the diameter ofa rivet.
What is the advantage of direct riveting?
There is less impact on the structure of the aircraft and more on the rivet.
A factor which determines the minimum spacing between riverts is the?
The thickness of the thinest sheet of material.
