GATE 2019 Steel Structures Quiz 3 (App update required to attempt this test)

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Question 1

Steel tanks are mainly designed for

• Aweight of tank
• Bwind pressure
• Cwater pressure
• Dearthquake forces

Question 2

The effective length of a battened strut effectively held in position at both ends but not restrained in direction is taken as

• A1.8 L
• BL
• C1.1 L
• D1.5 L

Question 3

The semi-compact section of a laterally unsupported steel beam has an elastic section modulus, plastic section modulus and design bending compressive stress of 500 cm3, 650cm3 and 200MPa, respectively. The design flexural capacity (expressed in kNm) of the section is _________.

Answer

Question 4

Four angles of ISA 100X100X10 are used for a used for a built up column. The column is subjected to a compressive force of 1800 kN. If a flat of 80*10 mm size is used as lacing bar for the single lacing system and inclination of the lacing bar is 45⁰ with vertical, then each lacing bar is designed for an axial force of

• A75.45
• B54.45
• C63.64
• D31.82

Question 5

A compound column has beam fabricated with 4 angles of ISA 50*50*6 mm placed at corners of a square 400 mm X 400 mm. The radius of gyration of the angle is 12 mm for fabricated column. The overall slenderness ratio is 50. The maximum spacing of lacing bar (in mm) attachments of fabricated column is

• A480
• B420
• C720
• D418

Question 6

A steel column section ISHB 350 (width of flange is 250 mm and thickness of flange 11.6 mm) has to carry a factored load of 2400 kN. The yield stress and the ultimate tensile stress of steel and welds are 250 MPa and 410 MPa respectively and partial safety factor governed by yield and ultimate tensile strength respectively are 1.10 and 1.25. The bearing strength of M25 grade concrete in limit state method of design as per IS 456:2000 (in N/mm²)is

• A11.25
• B12.63
• C13.86
• D25

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