The GTAW process demands _______ operator skills
high
low
medium
no
Postweld heat treatment, often called _____ relieving, consists of uniformly heating the welded parts to a temperature sufficient to relieve most of the stresses created by the welding process.
crack
inclusion
stress
check
______________ are solid non-metallic inclusions entrapped below the surface in the weld metal or more often, between deposited weld metal and the base metal.
porosity
slag inclusions
cracks
checks
______ is an excess of deposit metal, which is not fused to the base metal
fusion
undercut
overlap
underfill
According to the AWS classification system for low carbon steel electrodes, and using E7018 as the example. What does the 1 signify
welding position
tensile strength
electrode coating, current and polarity
metal thickness
To ensure the electrodes function as designed, they must be kept in baking ovens to remove any ________ content
hydrogen
moisture
carbon
inert
_________ is insufficient weld deposit, resulting in a reduction in the thickness of the groove
Fusion
Undercut
Overlap
Underfill
To qualify a welding procedure the _____ must specify a detailed written description of the procedure.
welder
manufacturer
owner
operator
Magnetic particle testing (MT) is an _____ technique for detecting flaws that are either surface, or subsurface.
non destructive
destructive
radiographic
ultrasonic