NDT VT Exam with all Correct & 100% Verified Answers |
Actual Complete Update |Already Graded A+
Visual Testing ✔Correct Answer-method of non-destructive testing using electromagnetic
radiation at visible frequencies
Visual Testing and Optical Test use what? ✔Correct Answer-Probing energry from the visible
portion of electromagnetic spectrum and seeing changes in the light properties after contact
with the test object.
How to improve detection? ✔Correct Answer-improved by mirrors, magnifiers, borescopes
What are four factors an affected by? ✔Correct Answer-•The quality of the detector ( eye or
camera)
• The Lighting Conditions
• The capability to process the visual data.
• the level of training and attention to detail.
Visual testing requires what? ✔Correct Answer-Good eyesight and sufficient lighting or
illumination
What are vision Anonalies ✔Correct Answer-• Different colors will be less detectable when
the colors are in similar shape within a pattern. Recognition of shapes tend overpowered the
difference in color
•Visual response better to something added rather than something missing
Color Wavelength Ranges? ✔Correct Answer-380 nanometers to 770 nanometers. each color
has a distinct wavelength range.
What are three characteristics every color has? ✔Correct Answer-tone or hue, saturation or
purity, and brightness
Our rode are generally used for ? ✔Correct Answer-Night Vision
The Lens is used for ? ✔Correct Answer-Focus image on the retina
Visual examination well what? ✔Correct Answer-will recognize something added rather than
something missing first
visible light waves are? ✔Correct Answer-listed on the electromagnetic spectrum
what part of the eye controls the amount of light of allowed into eye ✔Correct Answer-Iris
, Our color and daylight vision is referred to as? ✔Correct Answer-Photopic
define illuminance ✔Correct Answer-The density of luminous flux on a surface. Measured in
SI system by Lux.
How many lux in a foot candle? ✔Correct Answer-10.76 lux = 1fc
How many foot candle is typical for inspection? ✔Correct Answer-100 to 300 FC but can
change per spec
Less critical work requires how many FC ✔Correct Answer-50 FC
Purpose of lighting ✔Correct Answer-To show contrast between flaws if object on the surface
Purpose of contrast ✔Correct Answer-The ability to see a difference between luminescence
or color and it's background.
Purpose of Luminescence ✔Correct Answer-Luminescence contrast would be the light
reflection between an object's glow and its background
What two techniques are there for visual inspection ? ✔Correct Answer-Direct and indirect
visual exams
What is direct visual examination ✔Correct Answer-when you can get your eye within 24" of
the surface and your eyes are at least 30° above the surface.
The outcome of the ear examination may be adversely affected by? ✔Correct Answer-The
humidity and heat in the area of the exam.
rough services, such as rust, may? ✔Correct Answer-require more lighting due to absorption
VT 1, VT 2, VT 3 refer to? ✔Correct Answer-Visual examination of formed in accordance with
ASME section XI
what's acceptable for doing direct visual examination? ✔Correct Answer-getting your eyes 20
inches from the part surface and add an angle of 45° to the part surface
for detection of surface anomalies or flaws there must be what? ✔Correct Answer-contrast
between the part and the flaw
what measurement would be acceptable for find television visual examination? ✔Correct
Answer-150 foot candles
Actual Complete Update |Already Graded A+
Visual Testing ✔Correct Answer-method of non-destructive testing using electromagnetic
radiation at visible frequencies
Visual Testing and Optical Test use what? ✔Correct Answer-Probing energry from the visible
portion of electromagnetic spectrum and seeing changes in the light properties after contact
with the test object.
How to improve detection? ✔Correct Answer-improved by mirrors, magnifiers, borescopes
What are four factors an affected by? ✔Correct Answer-•The quality of the detector ( eye or
camera)
• The Lighting Conditions
• The capability to process the visual data.
• the level of training and attention to detail.
Visual testing requires what? ✔Correct Answer-Good eyesight and sufficient lighting or
illumination
What are vision Anonalies ✔Correct Answer-• Different colors will be less detectable when
the colors are in similar shape within a pattern. Recognition of shapes tend overpowered the
difference in color
•Visual response better to something added rather than something missing
Color Wavelength Ranges? ✔Correct Answer-380 nanometers to 770 nanometers. each color
has a distinct wavelength range.
What are three characteristics every color has? ✔Correct Answer-tone or hue, saturation or
purity, and brightness
Our rode are generally used for ? ✔Correct Answer-Night Vision
The Lens is used for ? ✔Correct Answer-Focus image on the retina
Visual examination well what? ✔Correct Answer-will recognize something added rather than
something missing first
visible light waves are? ✔Correct Answer-listed on the electromagnetic spectrum
what part of the eye controls the amount of light of allowed into eye ✔Correct Answer-Iris
, Our color and daylight vision is referred to as? ✔Correct Answer-Photopic
define illuminance ✔Correct Answer-The density of luminous flux on a surface. Measured in
SI system by Lux.
How many lux in a foot candle? ✔Correct Answer-10.76 lux = 1fc
How many foot candle is typical for inspection? ✔Correct Answer-100 to 300 FC but can
change per spec
Less critical work requires how many FC ✔Correct Answer-50 FC
Purpose of lighting ✔Correct Answer-To show contrast between flaws if object on the surface
Purpose of contrast ✔Correct Answer-The ability to see a difference between luminescence
or color and it's background.
Purpose of Luminescence ✔Correct Answer-Luminescence contrast would be the light
reflection between an object's glow and its background
What two techniques are there for visual inspection ? ✔Correct Answer-Direct and indirect
visual exams
What is direct visual examination ✔Correct Answer-when you can get your eye within 24" of
the surface and your eyes are at least 30° above the surface.
The outcome of the ear examination may be adversely affected by? ✔Correct Answer-The
humidity and heat in the area of the exam.
rough services, such as rust, may? ✔Correct Answer-require more lighting due to absorption
VT 1, VT 2, VT 3 refer to? ✔Correct Answer-Visual examination of formed in accordance with
ASME section XI
what's acceptable for doing direct visual examination? ✔Correct Answer-getting your eyes 20
inches from the part surface and add an angle of 45° to the part surface
for detection of surface anomalies or flaws there must be what? ✔Correct Answer-contrast
between the part and the flaw
what measurement would be acceptable for find television visual examination? ✔Correct
Answer-150 foot candles
