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qctc test on pdf
san jac qctc test on ndt methods from pdf
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Undergraduate 1
11/30/2014

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Term
Wetting ability depends on?
Definition
The contact angle and surface tension
Term
Which of the following discontinuities can be found by the penetrant test method?
Definition
. A surface crack
Term
The more sensitive penetrant method is:
Definition
Type I
Term
Visible Penetrants are referred as:
Definition
Type II
Term
The methods of penetrant removal are?
Definition
Methods A, B, C, D
Term
A generally accepted method for removing excess solvent removable penetrant is:
Definition
by wiping the part with a clean absorbent material dampened with the cleaner until the excess penetrant is removed
Term
Penetrant dwell time is generally between?
Definition
. 7 to 10 mins
Term
The following is the correct sequence for penetrant testing:
Definition
cleaning, drying, penetrant application, removal of penetrant, developing
Term
Drying is required prior to application of non-aqueous developer:
Definition
True
Term
Black light intensity shall be at least:
Definition
1000 μW/cm2.
Term
The magnetic particle technique can be applied to the following materials
Definition
Ferromagnetic materials
Term
Magnetic particle testing is most sensitive to cracks that are
Definition
Perpendicular to the magnetic field
Term
The most sensitive method for magnetic particle testing is
Definition
Fluorescent
Term
Which yoke is lighter
Definition
AC
Term
AC yoke shall have a minimum lifting capacity of
Definition
10 lbs
Term
The maximum prod spacing is
Definition
8 inches
Term
Longitudinal magnetism applied to a shaft will detect
Definition
Circumferential cracks
Term
Circular magnetism will detect
Definition
Axial Cracks
Term
The current level for circular magnetism is
Definition
300-800 Amp/inch of part dia
Term
Verification of magnetic field is performed by
Definition
Pie gauges and shims
Term
The variation in _________ is us used to detect flaws in materials using radiography
Definition
Density
Term
The two types of sources used for radiography are
Definition
X-ray and γ-ray sources (gama)
Term
The general the maximum thickness of steel that can be inspected with IR-92 is
Definition
2.5 inches
Term
The minimum image density with gamma ray source is
Definition
2.0
Term
Geometrical unsharpness can be reduced by
Definition
Increasing source to object distance
Term
High Subject Contrast is obtained by (2 things)
Definition
Large differences in thicknesses
and
Soft radiation
Term
Common pentameters are
Definition
Hole and wire type
Term
The 2-2T refers to a penetrameter with
Definition
thickness is 2% of specimen thickness and hole dia of 2 times the penetrameter thickness
Term
The penetrameter is placed on the
Definition
Source side
Term
The two types of waves used in ultrasonic testing are
Definition
Longitudinal and shear waves
Term
The waves used for thickness measurement are:
Definition
Longitudinal waves
Term
Sound waves are produced by
Definition
Piezoelectric crystals
Term
Beam spread is reduced by (2 things)
Definition
Using probes with smaller diameter
and
Using probes with higher frequencies
Term
Materials that exhibit higher attenuation are
Definition
Cast iron
Term
Thickness on the analog screen is displayed on the
Definition
Horizontal time axis
Term
The zero on the time axis is at the
Definition
Bottom left corner of the screen
Term
The maximum range of dual probe is typically
Definition
2.5 inches
Term
The preferred probe for measuring a 5 inch thick plate is
Definition
Single
Term
Eddy Current Test method is based on measuring the change in _______ as the electromagnetic coil is scanned over the surface
Definition
Impedance
Term
Standard depth of penetration ins inversely proportional to
Definition
Frequency
Term
Eddy Current depth of penetration can be increased by
Definition
Decreasing frequency
Term
Surface inspection is performed using the following type of probe
Definition
Pencil probe
Term
Lift-off signal during surface inspection is set to
Definition
0 degrees
Term
Surface ECT can detect subsurface defects in iron castings
Definition
False
Term
During tubing inspection, the signal from the hole is set to
Definition
40 degrees
Term
Signal from OD flaws during tubing inspection is
Definition
Greater than 40 degrees
Term
Conventional eddy Current testing can be performed at speeds up to
Definition
6 ft/sec
Term
The minimum vision requirement as per ASME Section, Article 9 is
Definition
J-1
Term
The techniques for visual examination include
Definition
Direct and Remote
Term
Videoscope is a form of inspection with the following technique
Definition
Remote
Term
Minimum lighting requirement for visual inspection is
Definition
1000 lux
Term
For direct visual examination the eye is place within
Definition
24 inches of the inspection surface
Term
For direct visual examination the eye should be placed within ____ degrees of the surface
Definition
30 degrees
Term
Depth of view refers to the
Definition
Range of distance over which focusing is possible
Term
Cold shuts are flaws produced in
Definition
Casting
Term
Undercut refers to a discontinuity in
Definition
Welding
Term
Underfill refers to a discontinuity
Definition
Welding
Term
X-rays and light waves are the same electromagnetic waves except that they differ in the wavelength
Definition
True
Term
Ultrasonic waves and audible sound waves are the same elastic waves except that they differ in the wavelength
Definition
True
Term
The pie gauge face used to evaluate the magnetic field is
Definition
the side with the copper/brass face
Term
Longitudinal Magnetism applied to a shaft will detect
Definition
Circumferential cracks
Term
Which technique MT is more sensitive
Definition
Wet fluorescent MT
Term
The velocity of S-waves is approximately
Definition
half of L-waves
Term
The thickness of the 2-2T penetrameter of inspection of a 20 mm plate is
Definition
0.2 mm
Term
The correct direction of magnetic field to detect the crack
Definition
Perpendicular to the crack
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