Which of the following is NOT a responsibility of a structural engineer?

Most steels are susceptible to this when freely exposed to air and water

In a stress-strain diagram, the relationship between stress and strain is linear up to the?

According to the National Structural Code of the Philippines, which of the following ASTM specifications is approved to be used for hot-rolled structural shapes?

It is a hot-rolled shape that is used for bearing piles, has parallel flange surfaces, approximately the same width and Depth, and equal flange and web thickness

What is the minimum yield strength of an ASTM A847 steel?

It is a property of steel that allows it to return to its original form after unloading

According to the NSCP which of the following specifications is approved to be used for bars?

They are made by bending thin sheets of carbon or low-alloy steel into almost any desired cross section.

They are made when special conditions such as the need for heavier members or particular cross-sectional geometries

For a W shape, the preferred material specification to be used is

The manufacturing process takes place in a mil, molten steel is taken from an electric arc furnace and poured into continuous casting system where the steel solidifies but is never allowed to cool completely, and then passes through a series of rollers that squeeze the material into the desired cross-sectional shape.

It is the linear portion of the stress-strain diagram, the specimen can be unloaded without permanent deformation

It is a hot rolled shape that consists of two parallel flanges separated by a single web, has two axes of symmetry, and the inside faces of the flanges slope with respect to the outside Faces.

It is a property of steel which per unit weight that is of great importance for long-span bridges, tall buildings, and structures situated on poor foundations

What is the minimum width of a plate?

It is a hot-rolled shape produced by a splitting an I shaped member at mid depth.

For a rectangular HSS, the preferred material specification to be used it

According to the NSCP which of the following ASTM specifications is approvrd to be used for plates?

What is the ultimate tensile strength of an ASTM A992 Steel?

It is the range in the stress-strain diagram where the strain remains constant, even though the strain continues to increases.

It is the range in the stress-strain diagram where additional load( and stress) is required to cause additional elongation (and strain)

It is a point on the stress-stress diagram ehere leveling off stairs.

The property of a material by which it can withstand extensive deformation without failure under high tensile stresses

It is a hot-rolled shape with two flanges and a web, with one axis of symmetry, and the inside fsced of the flanges are sloping.

Which of the following shapes CAN NOT be used when you are to use ASTM A36 Steel

Brittle failure may occur to steel structures due to

It is a hot rolled shape that consists of two parallel flanges separated by a single web, has two axes of symmetry, and the outside and inside facrs of thr flanges are parallel

The ability of a material to absorb energy in large amounts

They are structural steels which are made up mostly iron and carbon, with less than 1% carbon