Machine Design The velocity factor for ordinary cut gears operating at velocities up to 12.5 m/s is equal to 0.75/(0.75 + √v) 6/(6 + v) 4.5/(4.5 + v) 3/(3 + v) 0.75/(0.75 + √v) 6/(6 + v) 4.5/(4.5 + v) 3/(3 + v) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In worm, gears, pitch lead angle is Half the angle between two inclined faces in axial plane None of these The angle between the tangent to the pitch helix and an element of the cylinder The angle between the tangent to the pitch helix and the plane of rotation Half the angle between two inclined faces in axial plane None of these The angle between the tangent to the pitch helix and an element of the cylinder The angle between the tangent to the pitch helix and the plane of rotation ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to a maximum bending stress of 80 N/mm² and maximum shearing stress equal to 30 N/mm² at a particular section. If the yield point in tension of the material is 280 N/mm² and the maximum shear stress theory of failure is used, then the factor of safety obtained will be 2.8 3.5 3.0 2.5 2.8 3.5 3.0 2.5 ANSWER DOWNLOAD EXAMIANS APP
Machine Design If T₁ and T₂ are the tensions on the tight and slack sides of the belt respectively, and Tc is the centrifugal tension, then initial tension in the belt is equal to (T₁ - T₂ + Tc)/2 T₁ + T₂ + Tc T₁ - T₂ + Tc (T₁ + T₂ + Tc)/2 (T₁ - T₂ + Tc)/2 T₁ + T₂ + Tc T₁ - T₂ + Tc (T₁ + T₂ + Tc)/2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design For applications involving high stresses in one direction only the following type of thread would be best suited Buttress thread Square thread ISO metric thread Acme thread Buttress thread Square thread ISO metric thread Acme thread ANSWER DOWNLOAD EXAMIANS APP
Machine Design A shaft is subjected to Bending stresses All of these Shear stresses Combined bending and shear stresses Bending stresses All of these Shear stresses Combined bending and shear stresses ANSWER DOWNLOAD EXAMIANS APP
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