A Prismatic Shaft (Diameter $d_{0}=19 \mathrm{~mm}$ ) Is Loaded by Torque $T_{1}$

question 24

Multiple Choice

A prismatic shaft (diameter $d_{0}=19 \mathrm{~mm}$ ) is loaded by torque $T_{1}$ A stepped shaft (diameters $d_{1}=20 \mathrm{~mm} \text { and } d_{2}=25$ mm with radius of fillets R = 2mm) is loaded by torque $T_{2}$ . The allowable shear stress in the
Material is 42 MPa. The ratio $T_{1} / T_{2}$ of the maximum permissible torques
That can be applied to the shafts, considering stress concentration effects
In the stepped shaft is:

• A) 0.9
• B) 1.2
• C) 1.4
• D) 2.1

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