Steel Structures QUIZ 1

Steel contains about ………. Carbon

• 0.08%

• 2.1-4.2%

• 2.1%

• more than 4.2%

In a stress strain curve of steel, the plastic zone is from……..to……..

• Ultimate stress to breaking stress

• Elastic stress to breaking stress

• Elastic stress to yield stress

• Necking to breaking stress

AISC stands for……………

• American institute of steel construction

• American instructions for steel construction

• Association in Steel construction

• American information for steel construction

In LRFD, a resistance factor …….. is multiplied with the nominal strength of member

• 1

• Less than 1

• Greater than 1

• 2

The steel section having two equal flanges and one web is called

• S-Section

• I- Section

• Channel

• W-section

The relationship b/w Ω and ɵ is………….

• Ω = 1/Φ

• Ω = 1.5/Φ

• Ω = 2.5/Φ

• Ω = Φ /1.5

In steel structures, while designing against rupture, the Resistance factor we use in LRFD is……….

• 0.75

• 0.90

• 1.67

• 2

In the factor s²/4g is added for each inclined line in steel structures, “s” is what?

• transverse spacing

• longitudinal spacing

• inclined spacing

• None

The effective area “Ae” of steel member is equal to

• U-An

• U+An

• UAn

• U/An

Which statement is incorrect about steel member?

• less corrosion

• more tensile strength

• Lighter weight

• High initial cost