WorksheetsNDTQuiz
Total questions: 20
Worksheet time: 10mins
On the basis penetrant removal technique , dye penetrant testing is classified into
None of the above
Solvent , water and post emuslifiable
Low , high and Medium sensitivity
Fluorescent and Visual penetrants
Illumination Technique which involves placing light source and camera on the same side of the product or observer to provide illumination is referred as
Oblique Illumination
Front Illumination
diffuse back illumination
Coxial illumination
The Mechanical aid used to determine weld cut , undercut gauges, pit gauges are known as
Endoscope
Vernier
Screw gauge
Universal welding gauge
Which among the following is not a type of Non-destructive testing?
Liquid penetrant testing
Tensile test
Visual Inspection testing
Radigraphy
According to ASTM E709-95 powder shall be applied upon the part to be tested in such a manner that
All of the above
Spot Coating
In excess coating
A light uniform coating is formed
For a penetrant to be effective , the contact angle should be
greater than 90°
greater than 95°
close to 0°
equal to 90°
Which of the following statement’s is correct regarding Non Destructive testing (NDT)
All of these
NDT allows inspection without interfering with product final use
NDT techniques are used in manufacturing industries for quality control
In service inspection are used to ensure product integrity in use
In several construction sites , heaps of sand is stored .If the stored sand gets wet in rain , the sand grains form agglomerates .What is the driving force of theses agglomerates
Vanderwall Force
Capillary force
All of above
Magnetic force
When a small diameter tube is placed in a glass of water, water rises in the tube to a level above the adjacent surface. This is called
Capillary action
Barometric testing
Viscosity
Surface tension
The ability of locate discontinuities that are close together within the material is called
Select one:
Effectiveness
Phase delay
Sensitivity
Resolution
When an electric current flows through a copper wire AB as shown in Figure, the wire
Deflects a magnetic needle placed near it
Becomes red hot
Gives electric shock
Behaves like a fuse
A device used consisting of rigid or flexible tube with eyepiece on one end and objective lens on the other end linked together by optical relay system is referred as
Fluorescent light
Holography
None of these
Borescopes
Penetrability of Penetrant is mainly determined by
Viscosity
Velocity
Surface tension
A, and C of the above
Normally all the Penetrant that are employed in PT have specific gravity of
Less than 1
More than 1
More information is required
Specific gravity is not criteria in PT
Which of the following should be removed in order to obtain a goodpenetrant test
Varnish
Oxides
Plating
ALL OF THE ABOVE
Large defects can be hidden under a painted surface because:
The paint will fill in the cracks and change the fluorescence of the penetrant
Paint is more elastic than metal and will not fracture
The penetrant will adhere to the paint resulting in maximum fluorescence
All of the above apply
LPI can be used to test most materials provided the surface of the part is:
Heated to a temperature above 100oF
Is not extremely rough or porous
Smooth and uniform
Cleaned with number 005 grit
Which level of penetrant is the most sensitive?
Level I
Level II
Level III
Level IV
Which of the following materials cannot be tested by the usual liquid Penetrant tests?
Unglazed porous ceramic
Titanium
High alloy steel
Cast iron
In general, the total magnification of borescopes is in the range of:
3x – 4x
2x – 8x
4x – 10x
5x – 15x
