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GATE 2019: Machine Design Quiz 5
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Question 1
A plate 100 mm wide and 20 mm thick is to be welded to another plate using double parallel fillets. The plates are subjected to a static load of 70 kN. Find the length of weld if the permissible shear stress in the weld does not exceed 50 MPa.
Question 2
The transverse fillet joint is given by Ʈ = P sin θ (sin θ + cos θ)/h l. The maximum shear stress induced is?
Question 3
A horizontal plate has been joined to a vertical post using four rivets arranged as shown in the figure. The magnitude of the load on the worst loaded rivet (in N) is
Question 4
A steel plate is subjected to a force of 10 kN and fixed to a channel by means of three identical bolts as shown below. The bolts are made from plain carbon steel (σyt = 380 MPa) and the factor of safety is 3. The core diameter of bolt (in mm) is
[Take τyt =0.5 σyt ]
[Take τyt =0.5 σyt ]
Question 5
In a bolted joint two 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_____.
Question 6
A fillet welded joint is subjected to transverse loading F as shown in the figure. Both legs of the fillets are of 10 mm size and the weld length is 30 mm. If the allowable shear stress of the weld is 94 MPa, considering the minimum throat area of the weld, the maximum allowable transverse load inkNis
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