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chapter 11 NDI
MATERIALS AND PROCESSES FINAL STUDY GUIDE
35
Aviation
Professional
12/06/2017

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Term
borescope
Definition
A _______ is an optical device that allows us to see inside an engine without disassembling it.
Term
fiber optic
Definition
the _______ borescope uses a bundle of optical glass fibers
Term
video scope
Definition
the _______ borescope uses a bundle of optical glass fibers
Term
open
Definition
Liquid penetrant may be used to detect discontinuitiess that are (open or below) the surface
Term
capillary
Definition
penetrant inspection is based on the principle of _____ attraction
Term
red
Definition
a fault located with the flourescent penetrant method will show up as a (red or green) line.
Term
should not
Definition
parts which are to be inspected using liquid penetrant (should or should not)be cleaned with an abrasive blast
Term
dwell
Definition
the time the pemetrant remains on the sureface of the part is known as the ____ time.
Term
water-soluble
post-emulsified
solvent-removable
Definition
3 types of penetrants used for liquid penetrant inspection.
Term
dry
wet
non aqueous
Definition
3 types of develpoers that may be used with the liquid penetrant inspection method are?
Term
residual
continuous
Definition
2 methods of testing by magnetic particle inspection are:
Term
ferrous
Definition
magnetic partical inspection may be used on ______ metal parts
Term
residual
Definition
the magnetism that remains in a material after the magnitizing force is removed is known as _____ magnetism
Term
relativity
Definition
the ability is a material to retain magnetism after the magnetizing force is removed is called _______
Term
permeability
Definition
the ease with which material can conduct lines of magnetic flux is called its ______
Term
perpendicular
Definition
when magnetizing a part for magnetic part inspection, it must be magnetized in such a way that the line of flux are (parallel or perpendicular) to the susopected faults.
Term
longitudinal
circular
Definition
2 methods os magnetization for ag particle inspection are ______ and _____
Term
circular
Definition
when a part is placed between the head of the magnetizing machine and current flows the specimen, the part is magnetized by the _____ method
Term
longitudinal
Definition
when the part is placed in a coilthrough which the magnetizing current flows, the part is magnetized by the _____ method.
Term
strongest
Definition
the magnetic strength so a piece od materual is (strongest or weakest) at its surface.
Term
DC
Half wave rectified DC
AC
Definition
3 types of current that amy be used to magnetize a part for inspection are:
Term
sureface
Definition
AC magnetization is best suited for locatin(suface or subsurface) faults
Term
high permeability
low retentivity
Definition
2 imoprtant characterisics os the testingmedium used for magnetic particle inspection are:
Term
demagnetized
Definition
after the part has been inspected using the mag particle inspection method it must be _____ before returning it to service
Term
conductivity
permeability
mass
pressence of faults
Definition
4 pro[perties od a metal that makes eddy current nspection possible are:
Term
absolute
comparison
Definition
what are 2 methods of inspection that utilize eddy current principle
Term
200
25
Definition
ultrasonic wavesthat are used for nondestructive inspection vary in frequency from ____ kilohertz to ____ megahertz
Term
piezoelectric
Definition
a ______ material is one that will produce an electrical potential when it is pressed,bent or oterwise distorted.
Term
longitudinal
transverse
surface
Definition
3 types of wves that can be introduced into a test specimen when using ultrasonic inspdtion are:
Term
x-ray
gamma ray
Definition
2 types of radiation energy (rays) used fo radiographioc inspection are:
Term
voltage
Definition
the (voltage or current) supplied to the anode of an x-ray tube determineds the energy of an x-ray
Term
current
Definition
the (voltage or current) supplied to the cathode of an x-ray tube determines the instensity of an x-ray
Term
isotopes
Definition
gamma rays are produced by the disintegration os certain ______
Term
negative
Definition
the image formed on the photo graphioc film by either x-rays or gamma rays is a (positive or negative) representaion of the specicman being inspcted
Term
monitoring
Definition
persons working around x-ray or gamma ray equipment should wear ____ film badges
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