30 Questions
What is the air pressure range at which pneumatic guns operate?
90 to 100 pounds per square inch
What supplies the force to buck the rivet in a pneumatic gun?
Airdriven hammer
How many blows per minute do slow hitting rivet guns typically strike?
900 to 2,500 blows per minute
How long should it ideally take for a rivet gun to upset a rivet?
1 to 3 seconds
Which type of pneumatic gun is commonly used in airframe repair work?
Pneumatic rivet gun
What determines the size of a pneumatic rivet gun?
Largest rivet size continuously driven
Which type of fastener provides up to 300 pounds of clamping force?
Hex nut fasteners
What is the advantage of using a hex nut fastener?
Quick installation and removal
What characteristic distinguishes wing nut fasteners from hex nut fasteners?
Wing-shaped protrusions
What type of aluminum has a protective cladding to improve corrosion resistance?
Alclad™ aluminum
How are aluminum stock usually marked to identify grades and alloys?
With commercial code markings
What is the main difference between aluminum alloys and pure aluminum?
Aluminum alloys possess higher corrosion resistance than pure aluminum
What should the bucker do while the rivet is being driven?
Hold the bucking bar in place
What does using a countersink tool achieve?
Smooth surface rivet installation
What is the purpose of dimpling dies?
To create a depression around the rivet hole
Why is it important not to bear down too heavily on the shank of the rivet?
To prevent damage to the skin
What is a common angle for standard countersinks?
100º
Why are microstop countersinks useful?
They are adjustable for different depths
What is the signal to withdraw the drill when removing a rivet?
The rivet head breaks away and climbs the drill
What should be done if the rivet head does not come loose on its own?
Insert a drift punch and twist slightly
What should be done on thin metal or unsupported structures when removing a rivet shank?
Use a backup block while driving out the shank
What is advised if the shank is unusually tight after the rivet head is removed?
Drill two-thirds through the material
How deep should you drill into the exact center of a countersunk or flush head rivet before removing it?
To the approximate depth of the head
What is recommended for punching out the shank of a countersunk or flush head rivet?
Use a suitable backup, preferably wood, or a dedicated backup block
What does the formula A = B + C represent?
The total rivet length
In structural applications, why is the strength of replacement rivets important?
To ensure the safety and integrity of the structure
When replacing rivets with a larger size due to hole damage, what must be ensured?
Increasing the edge distance and spacing
Why is it acceptable to replace certain rivets with 2117 rivets for general repairs?
2117 rivets require no heat treatment
When replacing 2017 or 2024 rivets with 2117 rivets for general repairs, what must be ensured about the replacement rivets?
They are 1/32 inch greater in diameter than the original rivets
Why should one consult the maintenance manual when selecting rivet type and material?
To ensure correct rivet selection for safe and effective repairs
Learn about proper techniques for riveting, including the importance of holding the bucking bar in place, allowing its weight to do the work, and coordinating with the gun set. Discover safety measures to prevent accidents during riveting operations.
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