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# Past Year Questions: Bolted, Riveted, And Welded Joint Notes | EduRev

## Mechanical Engineering : Past Year Questions: Bolted, Riveted, And Welded Joint Notes | EduRev

The document Past Year Questions: Bolted, Riveted, And Welded Joint Notes | EduRev is a part of the Mechanical Engineering Course Machine Design.
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Question 1:A 60 mm long and 6 mm thick fillet weld carries a steady load of 15 kN along the weld. The shear strength of the weld material is equal to 200 MPa.

The factor of safety is

[2006]

Question 2:Weldments in fabricated steel be ams are designed for

[1987]

Question 3:A single riveted lap Joint of two similar plates as shown in the figure below has the following geometrical and material details.

width of the plate ω = 200 mm, thickness of the plate t = 5 mm, number of rivets n = 3, diameter of the rivet dr = 10 mm, diameter of the rivet hole dr = 11 M mm, allowable tensile stress of the plate σp = 200 MPa, allowable shear stress of the rivet σs = 100 MPa and allowable bearing stress of the rivet σc = 150 MPa.

If the plates are to be designed to avoid tearing failure, the maximum permissible load P in kN is

[2013]

Question 4:A single riveted lap Joint of two similar plates as shown in the figure below has the following geometrical and material details.

width of the plate ω = 200 mm, thickness of the plate t = 5 mm, number of rivets n = 3, diameter of the rivet dr = 10 mm, diameter of the rivet hole dr = 11 M mm, allowable tensile stress of the plate σp = 200 MPa, allowable shear stress of the rivet σs = 100 MPa and allowable bearing stress of the rivet σc = 150 MPa.

If the rivets are to be designed to avoid crushing failure, the maximum permissible load P in kN is

[2013]

Question 5:A bracket (shown in figure) is rigidly mounted on wall using four rivets. Each rivet is 6 mm in diameter and has an effective length of 12 mm.

Direct shear stress (in MPa) in the most heavily loaded rivet is

Question 6:If the ratio of the diameter of rivet hole to the pitch of rivets is 0.25, then the tearing efficiency of the Joint is

[1996]

Question 7:Pre-tensioning of a bolted Joint is used to

[2018, Set-2]

Question 8:A steel plate, connected to a fixed Channel using three identical bolts A, B and C, carries a load of 6 kN as shown in the figure.

Considering the effect of direct load and moment, the magnitude of resultant shear force (in kN) on bolt C is

[2017, Set-2]

Question 9:For the three bolt system shown in the figure, the bolt material has shear yield strength of 200 MPa. For a factor of safety of 2, the minimum metric specification required for the bolt is

[2014, Set-2]

Question 10:A steel bar of 10 × 50 mm is cantilevered with two M12 bolts (P and Q) to support a static load of 4 kN as shown in the figure.

The resultant shear stress on bolt P is closest to:

[2008]

Question 11:A steel bar of 10 × 50 mm is cantilevered with two M12 bolts (P and Q) to support a static load of 4 kN as shown in the figure.

The primary and secondary shear loads on bolt P, respectively, are

Question 12:A bolted Joint is shown below. The maximum shear stress, in MPa, in the bolts at A and B, respectively are

[2007]

Question 13:In a bolted Joint two smooth members are connected with an axial tightening force of 2200 N. If the bolt used has metric threads of 4 mm pitch, the torque required for achieving the tightening force is

[2004]

Question 14:Bolts in the flanged end of pressure vessel are usually pre-tensioned. Indicate which of the following statements is true

[1998]

Question 15:The bolts in a rigid flanged coupling connecting two shafts transmitting power are subjected to

[1996]

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## Machine Design

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