WLD310 - Essential Concepts of Welding
Properties Materials Classification Certification
Tools and Mechanical Drawing Interpretation in
Modern Welding Practice
____ act as scavengers that combine with contaminants and float to the slag on top of the weld. -
Silicon and manganese✅✅✅
____ clamps are specialty clamps that are often used in conjunction with a jig or a fixture. They can
be preset, allowing for faster work. - cam-lock✅✅✅
____ clamps are very similar to bar clamps. The advantage of these clamps is that the ends can be
attached to a section of standard 1/2-in. (13 mm) pipe. - pipe✅✅✅
____ have been specially designed for welding. Some of these clamps have a spatter cover over the
screw, and others have their screws made of spatter-resistant materials such as copper alloys. - C-
clamps✅✅✅
____ indicates a brazing filler metal. - B✅✅✅
____ indicates a filler metal that is used as a current carrying electrode, as a rod, or both. -
RB✅✅✅
____ is a compound of iron and carbon, Fe2C. - Cementite✅✅✅
____ is dimensioned by its diameter and schedule or strength. - pipe✅✅✅
____ is the ease with which a metal will crack or break apart without noticeable deformation. -
Brittleness✅✅✅
____ is the property that allows a metal to withstand forces, sudden shock, or bends without
fracturing. - Toughness✅✅✅
____ is usually 3/16 in. (4.8 mm) or thicker and measured in inches and fractions of inches. -
plate✅✅✅
____ lines show the edge of an object, the intersection of surfaces that form corners or edges, and the
extent of a curved surface, such as the sides of a cylinder. - object✅✅✅
, ____ looks to see that the weld is uniform in width and reinforcement. - Visual inspection✅✅✅
____ point to a part to identify it, show the location, and/or are the basis of a welding symbol. -
Leaders and arrows✅✅✅
____ show an alternate position of a moving part or the extent of motion such as the on/off position of
a light switch. They can also be used as a place holder for a part that will be added later. - Phantom
lines✅✅✅
____ show the center point of circles, arcs, round, or symmetrical objects. They also locate the center
point for holes, irregular curves, and bolts. - centerlines✅✅✅
____ stainless steels are used for ornamental or decorative applications such as architectural trim, and
tend to be brittle. - Ferritic✅✅✅
____ stainless steels are used in applications requiring both wear resistance and corrosion resistance,
such as surgical knives and razor blades. - Martensitic✅✅✅
____ strength is the property of a material to resist being crushed. - Compressive✅✅✅
____, such as those for pipe welding, are available for many different types of jobs. Such clamps
make it possible to do faster and more accurate assembling. - Specialty clamps✅✅✅
A ____ line will make a long, straight line on metal and is best used on large jobs. - chalk✅✅✅
A ____-in. taper of the weld bead is all that is required to allow the new weld to be started without
having excessive buildup. - 1/4✅✅✅
A core wire is the primary metal source for a weld. - true✅✅✅
A high sulfur content is most often responsible for cold cracking in steel. - false✅✅✅
A metal cannot be both hard and ductile. - true✅✅✅
A metal's strength is affected by the direction it is rolled because of its grain structure. - true✅✅✅
A new certification test is required for each welding process. - true✅✅✅
A qualified or certified welder can weld anything. - false✅✅✅
A signal from the ____ indicates that the parts are in place. - positioner✅✅✅
A sketched drawing can be made with or without the use of drawing tools such as scales,
straightedges, curves, and circle templates. - true✅✅✅
Properties Materials Classification Certification
Tools and Mechanical Drawing Interpretation in
Modern Welding Practice
____ act as scavengers that combine with contaminants and float to the slag on top of the weld. -
Silicon and manganese✅✅✅
____ clamps are specialty clamps that are often used in conjunction with a jig or a fixture. They can
be preset, allowing for faster work. - cam-lock✅✅✅
____ clamps are very similar to bar clamps. The advantage of these clamps is that the ends can be
attached to a section of standard 1/2-in. (13 mm) pipe. - pipe✅✅✅
____ have been specially designed for welding. Some of these clamps have a spatter cover over the
screw, and others have their screws made of spatter-resistant materials such as copper alloys. - C-
clamps✅✅✅
____ indicates a brazing filler metal. - B✅✅✅
____ indicates a filler metal that is used as a current carrying electrode, as a rod, or both. -
RB✅✅✅
____ is a compound of iron and carbon, Fe2C. - Cementite✅✅✅
____ is dimensioned by its diameter and schedule or strength. - pipe✅✅✅
____ is the ease with which a metal will crack or break apart without noticeable deformation. -
Brittleness✅✅✅
____ is the property that allows a metal to withstand forces, sudden shock, or bends without
fracturing. - Toughness✅✅✅
____ is usually 3/16 in. (4.8 mm) or thicker and measured in inches and fractions of inches. -
plate✅✅✅
____ lines show the edge of an object, the intersection of surfaces that form corners or edges, and the
extent of a curved surface, such as the sides of a cylinder. - object✅✅✅
, ____ looks to see that the weld is uniform in width and reinforcement. - Visual inspection✅✅✅
____ point to a part to identify it, show the location, and/or are the basis of a welding symbol. -
Leaders and arrows✅✅✅
____ show an alternate position of a moving part or the extent of motion such as the on/off position of
a light switch. They can also be used as a place holder for a part that will be added later. - Phantom
lines✅✅✅
____ show the center point of circles, arcs, round, or symmetrical objects. They also locate the center
point for holes, irregular curves, and bolts. - centerlines✅✅✅
____ stainless steels are used for ornamental or decorative applications such as architectural trim, and
tend to be brittle. - Ferritic✅✅✅
____ stainless steels are used in applications requiring both wear resistance and corrosion resistance,
such as surgical knives and razor blades. - Martensitic✅✅✅
____ strength is the property of a material to resist being crushed. - Compressive✅✅✅
____, such as those for pipe welding, are available for many different types of jobs. Such clamps
make it possible to do faster and more accurate assembling. - Specialty clamps✅✅✅
A ____ line will make a long, straight line on metal and is best used on large jobs. - chalk✅✅✅
A ____-in. taper of the weld bead is all that is required to allow the new weld to be started without
having excessive buildup. - 1/4✅✅✅
A core wire is the primary metal source for a weld. - true✅✅✅
A high sulfur content is most often responsible for cold cracking in steel. - false✅✅✅
A metal cannot be both hard and ductile. - true✅✅✅
A metal's strength is affected by the direction it is rolled because of its grain structure. - true✅✅✅
A new certification test is required for each welding process. - true✅✅✅
A qualified or certified welder can weld anything. - false✅✅✅
A signal from the ____ indicates that the parts are in place. - positioner✅✅✅
A sketched drawing can be made with or without the use of drawing tools such as scales,
straightedges, curves, and circle templates. - true✅✅✅
