問題一覧
1
Which of the following is NOT a responsibility of a structural engineer?
None of the above
2
Most steels are susceptible to this when freely exposed to air and water
Corrosion
3
In a stress-strain diagram, the relationship between stress and strain is linear up to the?
proportional limit
4
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?
ASTM A913
5
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
HP-shape
6
What is the minimum yield strength of an ASTM A847 steel?
345 Mpa
7
It is a property of steel that allows it to return to its original form after unloading
Elasticity
8
According to the NSCP which of the following specifications is approved to be used for bars?
ASTM A529
9
They are made by bending thin sheets of carbon or low-alloy steel into almost any desired cross section.
Cold-formed shapes
10
They are made when special conditions such as the need for heavier members or particular cross-sectional geometries
Built-up sections
11
For a W shape, the preferred material specification to be used is
ASTM A992
12
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.
Hot-rolled shapes
13
It is the linear portion of the stress-strain diagram, the specimen can be unloaded without permanent deformation
Elastic Range
14
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.
S-shape
15
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
High Strength
16
What is the minimum width of a plate?
200mm
17
It is a hot-rolled shape produced by a splitting an I shaped member at mid depth.
Structural Tee
18
For a rectangular HSS, the preferred material specification to be used it
ASTM A500
19
According to the NSCP which of the following ASTM specifications is approvrd to be used for plates?
ASTM A242
20
What is the ultimate tensile strength of an ASTM A992 Steel?
450 Mpa
21
It is the range in the stress-strain diagram where the strain remains constant, even though the strain continues to increases.
Plastic Range
22
It is the range in the stress-strain diagram where additional load( and stress) is required to cause additional elongation (and strain)
Strain Hardening Stage
23
It is a point on the stress-stress diagram ehere leveling off stairs.
Lower yield point
24
The property of a material by which it can withstand extensive deformation without failure under high tensile stresses
ductility
25
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.
American Standard Channel
26
Which of the following shapes CAN NOT be used when you are to use ASTM A36 Steel
HSS
27
Brittle failure may occur to steel structures due to
All of the abovr
28
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
W-Shape
29
The ability of a material to absorb energy in large amounts
Toughness
30
They are structural steels which are made up mostly iron and carbon, with less than 1% carbon
Plain Carbon Steels
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1
Which of the following is NOT a responsibility of a structural engineer?
None of the above
2
Most steels are susceptible to this when freely exposed to air and water
Corrosion
3
In a stress-strain diagram, the relationship between stress and strain is linear up to the?
proportional limit
4
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?
ASTM A913
5
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
HP-shape
6
What is the minimum yield strength of an ASTM A847 steel?
345 Mpa
7
It is a property of steel that allows it to return to its original form after unloading
Elasticity
8
According to the NSCP which of the following specifications is approved to be used for bars?
ASTM A529
9
They are made by bending thin sheets of carbon or low-alloy steel into almost any desired cross section.
Cold-formed shapes
10
They are made when special conditions such as the need for heavier members or particular cross-sectional geometries
Built-up sections
11
For a W shape, the preferred material specification to be used is
ASTM A992
12
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.
Hot-rolled shapes
13
It is the linear portion of the stress-strain diagram, the specimen can be unloaded without permanent deformation
Elastic Range
14
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.
S-shape
15
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
High Strength
16
What is the minimum width of a plate?
200mm
17
It is a hot-rolled shape produced by a splitting an I shaped member at mid depth.
Structural Tee
18
For a rectangular HSS, the preferred material specification to be used it
ASTM A500
19
According to the NSCP which of the following ASTM specifications is approvrd to be used for plates?
ASTM A242
20
What is the ultimate tensile strength of an ASTM A992 Steel?
450 Mpa
21
It is the range in the stress-strain diagram where the strain remains constant, even though the strain continues to increases.
Plastic Range
22
It is the range in the stress-strain diagram where additional load( and stress) is required to cause additional elongation (and strain)
Strain Hardening Stage
23
It is a point on the stress-stress diagram ehere leveling off stairs.
Lower yield point
24
The property of a material by which it can withstand extensive deformation without failure under high tensile stresses
ductility
25
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.
American Standard Channel
26
Which of the following shapes CAN NOT be used when you are to use ASTM A36 Steel
HSS
27
Brittle failure may occur to steel structures due to
All of the abovr
28
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
W-Shape
29
The ability of a material to absorb energy in large amounts
Toughness
30
They are structural steels which are made up mostly iron and carbon, with less than 1% carbon
Plain Carbon Steels