Misc.
Pen
Mag
Eddy
T.O.s
100

The industrial safety hazard consisting of linking together multiple extention cords.

What is (a) Daisy-Chain(ing)?

100

This process control  is used to evaluate the entire penetrant system (including remover and developer) discontinuity detection performance.

What is System Performance Test/Cracked Chrome Panels?

100

The term that describes a material which exhibits both magnetic hysteresis and saturation, also whose magnetic permeability is dependent on the magentizing force present. In Magnetic Particle Testing, we are concerned only with these materials. 

What is Ferromagnetic?

100

The maximum allowable coating thickness of inspection articles.

What is 10mils?

100

This mandatory instruction is oftenly referred to as the "NDI Bible".

What is the (T.O.) 33B-1-1 or -1?

200

The written practice used to establish requirements and procedures for qualification and certification of USAF field-level civil service personnel performing NDI in aerospace service, maintenance and overhaul operations.

What is NAS 410?

200

The measure of a liquid's resistance to a change in physical shape and is related to internal friction.

What is Viscosity?

200

The method of applying the wet suspension to the inspection surfaces just prior to applying the magnetizing current.

What is Wet Continuous?

200

The false indication given when scanning near the perimeter of a test part.

What is Edge Effect?

200

These series contain NDI Inspection Procedures for specified airframes.

What is the -36?

300

The commonly referred to term of this AF IMT Form which is used to temporarily issue tools/equipment.

What is a Hand-Receipt (AF IMT 1297)?

300

The most common type of contamination for Penetrant (Method D).

What is Water?

300

The distance at which the yoke is pulled away from the test part while still energized during demagnetization.

What is 3 to 5 feet?

300

The type of filter used to remove rapid (high frequency) response from electronic noise and from harmonic frequencies related to variations in magnetic permeability.

What is Low-Pass Filter (LPF)?

300

Simply stated, this is what a T.O. is considered to be.

What is a Military Order (Mandatory)?

400

The actual owners of the equipment you use in the NDI shop.

American Taxpayers

400

The temperature at which fluorescence, if exposed to, may be destroyed due to it's sensitivity of elevated temperatures.

What is 140°F?

400

Both of these Process Control checks are required Prior to Use in the Portable Yoke inspection process.

What are Black Light (UV-A) Intensity & System Effectiveness Checks?

400

The minimum probe diameter distance from all notches and edges required to calibrate on a standard's surface.

What is Twice the Probe Diameter (2)?

400

DOUBLE JEOPARDY!!!

The procedures in this job guide must be accomplished prior to performing maintenance on any aircraft.

What is Safe for Mx (1B-1B-2-05JG-20-1)?

500

DOUBLE JEOPARDY!!!

Due to problems involved with maintaining enough strength while keeping weight within allowable limits, this variation of fuselage-build was developed by aircraft manufacturers which is now used is most modern military aircraft.

What is Semi-Monocoque?

500

The minimum distance at which a black light intensity check should be tested.

What is 15 inches?

500

This is created outside of a test part when a discontinuity exists, with continuous magnetic flux lines or lines of force flowing from North to South.

What is a Leakage Field?

500

The depth in the inspection article at which the magnetic field strength or intensity of eddy currents are reduced to 5%.

What is Effective Depth of Penetration?

500

This publication governs Aerospace Equipment Maintenance Inspection, Documentation, Policies and Procedures in which you can find instructions for clearing a Red Symbol entered in error.

What is (T.O.) 00-20-1?