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GATE2020 DSS Rapid Mini Mock

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Question 1

Statement 1 : For selecting a rolled I section for a simply supported beam, along with minimum sectional modulus value of span-depth ratio is kept minimum.
Statement 2 : To control the deflection of beam and keep it within limit, minimum value of span-depth ratio is ensured.

Question 2

Two plates subjected to direct axial tension, each of 16 mm thick and having width 150 mm and 250 mm respectively are to be fillet welded. The yield stress and the ultimate tensile stress of steel and welds are 250 MPa and 410 MPa respectively. The welding is done at a shop (ϒmw =1.25). The joint is subjected to a factored load of 400 kN. The length of the weld required using minimum permissible weld size is

Question 3

22 kN
D. 509.24 kN
23. A flat of 120 ISF 10 with 18 mm diameter bolt holes as shown in the figure. The yield and ultimate tensile strength of flat 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 design tensile strength of a flat based on gross section yielding is

Question 4

A 12 mm thick angle member is connected to a 16 mm thick gusset plate as a strut in a roof truss, to achieve minimum and maximum strength of fillet weld respectively, then minimum size of fillet weld is __mm and maximum size of fillet weld is ___mm

Question 5

What is the plastic moment capacity (in kNm) in the portal frame shown in figure ? The frame has a uniform cross section throughout.

Question 6

Consider the following statements
I. Effective length of a battened column is usually increased to account for the additional load on battens due to the lateral expansion of columns.
II. As per IS: 800-1984, permissible stress in bending compression depends on both Euler buckling stress and the yield stress of steel.
III. As per IS: 800-1984, the effective length of a column effectively held in position at both ends but not restrained against rotation, is taken to be greater than that in the ideal end conditions.
The TRUE statements are

Question 7

A tension member of a truss is made up of ISA 75 x 75x 6. The area of ISA 75 x 75 x 6 is 866 mm2 and length of member is more than the length of section available. If single V butt welding is used then the tensile capacity of joint (in kN) is
[Permissible axial tension,

Question 8

The tensile capacity of a plate 140 mm wide and 10 mm thick connected to another plate using 18 mm diameter bolts, such that two bolts occur in one row, is _________ kN.
[Use LSM Method]

Question 9

A bracket connection is formed as shown in figure using 4 bolts of 20 mm dia and grade 4.6. The service load P (in kN) that can be carried by the connection is
[Use LSM and assume failure to be critical in shear and failure shear plane lies in threaded portion of bolt]

Question 10

A square steel slab base of area 2.25 m2 is provided for a column made of two rolled channel sections. The 450 mm x 450 mm column carries an axial compressive load of 2500 kN. The line of action of the load passes through the centroid of the column section as well as of the slab base. The permissible bending stress in the slab base is 180 MPA. The required minimum thickness of the slab base is _________ mm.

Question 11

A truss tie consisting of 2 ISA 100 mm x 100 mm x 10 mm carries a pull of 200 kN. At ends the two angles are connected, one each on either side of a 10 mm thick gusset plate, by 20 mm diameter rivets arranged in one row. The allowable stresses in rivet are , fs = 90.0 N/mm2 and fbr = 250 N/mm2. Assuming both the angle sections are not tack riveteD. The maximum tensile stress (in N/mm2) in the tie is

Question 12

A 12 mm thick plate subjected to tensile force connected to two 10 mm thick plates on either side through a 22 mm diameter bolt of grade 4.6. The grade of steel plate is Fe410A. The bolt value (in kN) of given connection will be
[Assume minimum pitch and minimum edge distance are provided and also both shear plates lie in the threaded portion of bolt]
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Nov 10ESE & GATE CE