What type of deficiency is lamination?
Pg.48
Property deficiency
How is fracture toughness defined?
Pg. 48
A material's resistance to extension of a crack
What type of curve is produced on the stress-strain plot in a tensile strength test?
Pg. 56
A smooth curve
which type of hardness test uses a large steel ball?
Pg.81
Brinell
Where would the notch be placed when conducting an Izod impact Test?
Pg.60
the notch is placed perpendicular to the plate surface on the centerline of the weld
Dark weld bead appearance can indicate?
Pg.44
contamination
What is the minimum vacuum box pressure for testing?
Pg.80
14kPa (2psi)
With a material yield strength (MPa) over 550, what is the spacing of the rollers on a guided bend test jig?
Pg.51
73mm
What code covers Acoustic emission equipment?
Pg.77
ASTM E749
When AC is used for MPI, how must the legs of the yoke be positioned?
Pg.71
Transverse and parallel to the direction of the weld
which type of test is made up of, an oscillator, a test coil, a voltmeter across the leads attached to the coil?
Pg.78
Eddy current test
what is a simple method for performing a leak test?
Pg.80
Use liquid penetrant
Why is air not generally recommended for hydrostatic testing?
Pg.79
Because air can be compressed
when performing a nick break test, size of the specimen may very, but typically consists of _______?
Pg.62
a strip approximately 25.4mm (1") wide removed through the weld and parent metal
what are the three types of iron particles used with MPI
Pg.69
1. Dry iron particles
2. A wet solution of colored iron particles in a suspension medium
3. A wet solution of iron particles coated with a flouresent material is a suspension medium
what is the most common method of inducing a magnetic field?
Pg.69
Using an AC/DC Yoke
What do most codes and standards define as a necessary part of the inspection method?
Pg.71
Demagnetizing
What test is useful for measuring the size of the groove welds, as well as the thickness of the base metal?
PG.77
Ultrasonic thickness test
During a Rockwell Hardness test, the reading "X" designates what?
Pg.83
The scale identifier
What Figure # in the book represents the standard location of elements
Pg.86
Fig. 134
How can demagnetization be achieved?
Pg.72
Heat treating the affect part above 770 degrees c (1418 deg. F)
Subject the magnetized part a continuously reversing magnetic field the gradually decreases in strength
What happens When a notched specimen is broken by a swinging pendulum?
Pg. 58
The amount of energy absorbed by the specimen is recorded
Why can pinhole leaks be a serious danger?
Pg.79
The leak can be too fine to see and can produce a "water jet" capable of cutting through solid material.
How does Ultrasonic testing detect sub surface discontinuities?
Pg.74
Ultrasonic testing uses transducers that can transform electrical energy into mechanical energy and vise versa
What type of test was used to identify weld discontinuities when a proper LPI kit was not available, and how were discontinuities identified?
Pg.68
Light oil tests were used in place of LPI, with discontinuities being identified by following the wet patch