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Test: Failures in Rivets - Mechanical Engineering MCQ


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10 Questions MCQ Test Design of Machine Elements - Test: Failures in Rivets

Test: Failures in Rivets for Mechanical Engineering 2024 is part of Design of Machine Elements preparation. The Test: Failures in Rivets questions and answers have been prepared according to the Mechanical Engineering exam syllabus.The Test: Failures in Rivets MCQs are made for Mechanical Engineering 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Test: Failures in Rivets below.
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Test: Failures in Rivets - Question 1

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. Calculate the shear resistance of 1 rivet along A-A.

Detailed Solution for Test: Failures in Rivets - Question 1

Explanation: P=2x[τ x πd²/4].

Test: Failures in Rivets - Question 2

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. Calculate the tensile strength of rivet along A-A.

Detailed Solution for Test: Failures in Rivets - Question 2

Explanation: Strength=(w-d)xtxσ.

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Test: Failures in Rivets - Question 3

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. Calculate the tensile strength of rivets along B-B.

Detailed Solution for Test: Failures in Rivets - Question 3

Explanation: To fail along B-B, rivet in outermost row must undergo shear failure. Strength = (w-2d)x σ x t + 1xP(shear) = (300-60)x80x20/1000 + 84.8.

Test: Failures in Rivets - Question 4

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. Calculate the tensile strength of rivets along C-C.

Detailed Solution for Test: Failures in Rivets - Question 4

Explanation: To fail along C-C, rivets in outer rows must undergo shear failure. Strength= (w-3d)x σ x t + 3xP(shear) = (300-90)x80x20/1000 + 3×84.8.

Test: Failures in Rivets - Question 5

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. Calculate efficiency of the joint.

Detailed Solution for Test: Failures in Rivets - Question 5

Explanatio: Strength along A-A, B-B and C-C are 432kN, 468.8kN and 590.4kN and strength of solid plate=wσt=480kN. Lowes is along AA. Hence efficiency=432/480.

Test: Failures in Rivets - Question 6

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. Calculate the crushing resistance of 1 rivet.

Detailed Solution for Test: Failures in Rivets - Question 6

Explanation: P=dtσ= 30x20x160=96kN.

Test: Failures in Rivets - Question 7

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. Calculate the pitch of the rivets.

Detailed Solution for Test: Failures in Rivets - Question 7

Explanation: m+p+p+m=w where m=1.5d.

Test: Failures in Rivets - Question 8

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. The type of arrangement shown is

Detailed Solution for Test: Failures in Rivets - Question 8

Explanation: Lozenge joint is other name of diamond shape joint.

Test: Failures in Rivets - Question 9

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. If circumferential stress is P, then longitudinal stress in the pressure vessel is?

Detailed Solution for Test: Failures in Rivets - Question 9

Explanation: Circumferential stress=2x longitudinal stress.

Test: Failures in Rivets - Question 10

Two plates are joined by double strap butt joints with rivets arrangement as shown in the figure. Width of the plate is 300mm and diameter of rivets 30mm. The thickness of the plates can be taken as 20mm.Allowable stress in tension, shear and compression are 80 N/mm²,60 N/mm² and 160N/mm².

Q. If width of plate=80mm ad diameter of rivets 10mm, then pitch will be?

Detailed Solution for Test: Failures in Rivets - Question 10

Explanation: p+2m=w or p+2×1.5×10=80.

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