PP2355 NDT

What are the two methods for using ultrasonic testing on any material?

Immersion Testing

Contact Testing

Pulse Echo

Through Transmission

What 3 ways can ultrasonic testing be conducted?

Through transmission

Pulse echo

Resonance

Angle beam testing

What is a benefit to ultrasonic testing versus X-ray testing?

Can detect Minute Cracks

Can produce higher resolution photograph

Ultrasonic testing is better than X-ray testing

What is the difference between through transmission compared to pulse echo?

Through transmission is more accurate

Through transmission is easier to use

Through transmission travels through the part and does not bounce back.

How to determine the thickness of the material with pulse echo

Initial pulse and first reflection

Initial pulse and final pulse

Can not determine thickness

What induces a vibration through a piezoelectric quartz?

Transducer

Electronic Oscillator

Amplifier

What helps increase the strength of an AC current?

Transducer

Electric Oscillator

Amplifier

What is the definition of a Piezoelectricity?

Electricity resulting from a material that holds electric charge naturally

Electricity resulting from pressure, latent heat, changing mechanical energy to electrical energy

True or false: for eddy current testing, primer paint and anodized films must be removed first.

True

False

Which of these nondestructive testing methods is suitable for the inspection of most metals, plastics, and ceramics for surface and subsurface defects?

Eddy current inspection

Magnetic Particle Inspection

N Ultrasonic Inspection

Magnetic particle inspection is used primarily to detect

Distortion.

Deep subsurface flaws.

Flaws on or near the surface.

Liquid penetrant inspection methods may be used on which of the following?

Which of these nondestructive testing methods is suitable for the inspection of most metals, plastics, and ceramics for surface and subsurface defects?

Eddy current inspection.

Magnetic particle inspection.

Ultrasonic inspection.

What nondestructive testing method requires little or no part preparation, is used to detect surface or near-surface defects in most metals, and may also be used to separate metals or alloys and their heat-treat conditions?

Eddy Current

Ultrasonic

Magnetic Particle

What method of magnetic particle inspection is used most often to inspect aircraft parts for invisible cracks and other defects?

Residual

Inductance

Continuous

What is extremely reliable for rapid detection of defects on or near the surface on ferrous metals.

Eddy currents

Magnetic Particle

Ultrasonic

The factors of radiographic exposure are so interdependent that it is necessary to consider all factors for any particular radiographic exposure. These factors include, but are not limited to, the following

The testing medium that is generally used in magnetic particle inspection utilizes a ferromagnetic material that has

High permeability and low retentivity.

Low permeability and high retentivity.

High permeability and high retentivity.

Which statement relating to the residual magnetizing inspection method is true?

Subsurface discontinuities are made readily apparent.

It is used in practically all circular and longitudinal magnetizing procedures.

It may be used with steels which have been heat treated for stressed applications

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?

Eddy Current

Metallic Ring

Ultrasonic

What two types of indicating mediums are available for magnetic particle inspection?

Iron and ferrous oxides

Wet and dry

High retentivity and low permeability

Which of the following materials may be inspected using the magnetic particle inspection method?

Magnesium alloys.

Aluminum alloys.

Iron alloys.

Copper alloys.

One way a part may be demagnetized after magnetic particle inspection is by

Subjecting the part to high voltage, low amperage ac.

Slowly moving the part out of an ac magnetic field of sufficient strength

Slowly moving the part into an ac magnetic field of sufficient strength.

Which type of crack can be detected by magnetic particle inspection using either circular or longitudinal magnetization?

45º

Longitudinal

Transverses

To detect a minute crack using dye penetrant inspection usually requires

Developer applied to flat surface

Longer than normal Penetrating time

Surface highly polished

When checking an item with the magnetic particle inspection method, circular and longitudinal magnetization should be used to

Reveal all possible defects.

Evenly magnetize the entire part.

Ensure uniform current flow.

(1) In nondestructive testing, a discontinuity may be defined as an interruption in the normal physical structure or configuration of a part. (2) A discontinuity may or may not affect the usefulness of a part. Regarding the above statements,

1 is true

2 is true

1 and 2 is true

Non are true

PP2355 NDT

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