Liquid Penetrent PT

Question 1

Aids in drawing any trapped penetrant from discontinuities and slightly spreading that penetrant on the test surfaces to improve the visibility of indications

Answer 1

Developer

Question 2

Dye penetrant that contains fluorescent dye that emits a yellowish green light when exposed to ultraviolet or near ultraviolet light

Answer 2

Fluorescent penetrant

Question 3

Penetrant dye visible under natural or white light

Answer 3

Visible penetrant

Question 4

Dye penetrant containing dyes that are both colored under white light and fluorescent under ultraviolet light

Answer 4

Dual mode penetrant

Question 5

Emulsifier that are liquid blends that combined with oil base penetrants to form a mixture that can be removed with the water spray

Answer 5

Lipophilic

Question 6

Emulsifiers often referred to as removers are composed of emulsifying agents dissolved in water and your supply in the concentrated form

Answer 6

Hydrophilic

Question 7

Increase the brightness intensity of fluorescent penetrant indications and the contrast of visible penetrant indications

Answer 7

Developers

Question 8

The ability to detect discontinuities in liquid penetrant inspection

Answer 8

Sensitivity

Question 9

Most reliable penetrant testing method is

Answer 9

Postemulsifiable Method (D)

Question 10

This method is useful when water cannot be conveniently used or when the penetrant materials must be taken to the part

Answer 10

Solving removable method

Question 11

This method requires less time to complete then other methods and does not require a pre-rinse or an emulsifier.

Answer 11

Water washable method

Question 12

Water washable method designation

Answer 12

Method A

Question 13

Post emulsifiable lipophilic designation

Answer 13

Method B

Question 14

Solvent removable designation

Answer 14

Method C

Question 15

Post emulsifiable hydrophilic designation

Answer 15

Method D

Question 16

The tendency of a liquid penetrant to enter a discontinuity is primarily related to

Answer 16

Capillary forces

Question 17

The property of a dye used in penetrant materials to emit light of a range of wavelengths different from the wavelength of light that excites the emission is called

Answer 17

Florescence

Question 18

Penetrant system is generally considered the least sensitive

Answer 18

Water washable; visible die

Question 19

In penetrant testing, scattered round indications on the surface of a part can be indicative of

Answer 19

Porosity

Question 20

The total time that the penetrant is in contact with the parts surface is called the

Answer 20

Dwell

Question 21

Require a separate emulsifier to break the penetrant down and make it water washable

Answer 21

Post emulsified penetrants

Question 22

Which developer is commonly considered as the least sensitive

Answer 22

Dry developer

Question 23

A liquid that interacts with an oily substance to make it water washable

Answer 23

Emulsifier

Question 24

The term used to describe the action of a particular developer in soaking up the penetrant in a discontinuity, so as to cause the maximum bleed out the liquid penetrant for increased contrast and sensitivity is known as

Answer 24

Blotting

Question 25

Fluorescent penetrant is type

Answer 25

Type I

Question 26

Visible penetrant is type

Answer 26

Type II

Question 27

The specific gravity of what developer is measured with a

Answer 27

Hydrometer

Question 28

What instrument is used to check hydrophilic emulsifier concentration

Answer 28

Refractometer

Question 29

The test used to measure the sensitivity of a penetrant to water contamination based on the amount of water is the

Answer 29

Water tolerance test

Question 30

Light reflected by the background as opposed to the amount of light reflected by the dye

Answer 30

Contrast ratio