Exam 6: Structural Shapes

____ varieties of steel are slightly oversize and have slightly rounded corners.

When specifying certain pipe sizes, schedule numbers may be used in place of standard, extra strong, or double extra strong designations.

Wide-flange beams are identified by the letter "____."

Nominal sizes for the three basic types of pipes are determined by the ____________________ diameter except when the diameter exceeds 12 inches.

Standard beams (or I-beams) are identified by the letter "____."

There are only a few types and styles of structural metal shapes used in the welding industry.

Nominal sizes are an actual size.

There are four basic types of pipes.

Sheet thickness may be given as a fraction of an inch (usually as a decimal fraction) or as a ____ number.

____ steels are fairly precise in size and have square corners.

The most commonly used gauge is the ____.

The openings along the circumference of a standard sheet metal gauge are used ____.

Sheet metal is 3/16" or ____________________(less/more) in thickness.

Miscellaneous beams are identified by the letter "____."

The partial circles or holes in back of the openings of a standard sheet metal gage are ____.

Sizes listed for many structural shapes are only ____________________ sizes.

There are two basic types of tubing: ____.

The ____________________ specification is given in pounds per linear foot.

Bearing pile beams are identified by the letters "____________________."

Plate thickness is given as a common fraction of an inch.