Nuts & Bolts
A fiber-type, self-locking nut must never be used on an aircraft if the bolt is what?
What is subject to rotation.
Magnetic particle inspection is used primarily to detect what?
What is flaws on or near the surface.
Which tool can be used to measure the alignment of a rotor shaft or the plane of rotation of a disc?
What is a dial indicator.
The aluminum code number 1100 identifies what type of aluminum?
What is 99 percent commercially pure aluminum
Unless otherwise specified, torque values for tightening aircraft nuts and bolts relate to what?
What are clean, dry threads.
Aircraft bolts are usually manufactured with what number class fit for the threads?
What is Class 3.
To detect a minute crack using dye penetrant inspection usually requires what?
Which tool is used to find the center of a shaft or other cylindrical work?
What is a combination set
In the four-digit aluminum index system number 2024, the first digit indicates what?
What is the major alloying element.
What aluminum alloy designations indicate that the metal has received no hardening or tempering treatment?
What is 3003-F
A bolt with an X inside a triangle on the head is classified as what?
What is a NAS close tolerance bolt
What method of magnetic particle inspection is used most often to inspect aircraft parts for invisible cracks and other defects?
What is continuous
What may be used to check the stem on a poppet-type valve for stretch?
What is a micrometer.
What type of corrosion may attack the grain boundaries of aluminum alloys when the heat treatment process has been improperly accomplished?
What is intergranular.
A mechanic has completed a bonded honeycomb repair using the potted compound repair technique. What nondestructive testing method is used to determine the soundness of the repair after the repair has cured?
What is metallic ring test
Unless otherwise specified or required, aircraft bolts should be installed so that the bolthead is what?
What is upward, or in a forward direction.
The pattern for an inclusion is a magnetic particle buildup forming what?
What are parallel lines.
Which tool is used to measure the clearance between a surface plate and a relatively narrow surface being checked for flatness?
What is a thickness gauge
When used in close proximity to magnetic compasses, cotter pins are made of what material?
What is corrosion resisting steel.
What is the alloy number of the most commonly used aluminum alloy for aircraft structural use?
What is 2024-T
Where is an AN clevis bolt used in an airplane?
What is only for shear load applications.
Through which material will magnetic lines of force pass the most readily?
What is iron.
What tool is generally used to set a divider to an exact dimension?
What is a machinist scale.
What is generally used in the construction of aircraft exhaust collectors, stacks, and manifolds?
What is stainless steel.
When the specific torque value for nuts is not given, where can the recommended torque value be found?
What is AC 43.13-1B