Machine Design The shear stress at a point in a shaft subjected to a torque is Directly proportional to the polar moment of inertia and to the distance of the point from the axis Directly proportional to the applied torque and inversely proportional to the polar moment of inertia Directly proportional to the applied torque and the polar moment of inertia Inversely proportional to the applied torque and the polar moment of inertia Directly proportional to the polar moment of inertia and to the distance of the point from the axis Directly proportional to the applied torque and inversely proportional to the polar moment of inertia Directly proportional to the applied torque and the polar moment of inertia Inversely proportional to the applied torque and the polar moment of inertia ANSWER DOWNLOAD EXAMIANS APP
Machine Design For a shoe brake, the equivalent coefficient of friction is equal to (where μ = Actual coefficient of friction, and θ = Semi-block angle) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) 2μ sinθ/(θ + sinθ) μ sinθ/(2θ + sin 2θ) 4μ sinθ/(2θ + sin 2θ) 4μ sinθ/(θ + sinθ) 2μ sinθ/(θ + sinθ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The piston pin bearings in heavy duty diesel engines are Spherical roller bearings Needle roller bearings Tapered roller bearings Cylindrical roller bearings Spherical roller bearings Needle roller bearings Tapered roller bearings Cylindrical roller bearings ANSWER DOWNLOAD EXAMIANS APP
Machine Design The maximum efficiency of a square threaded screw is (1 + cosφ)/ (1 - sinφ) (1 + sinφ)/ (1 - sinφ) (1 - sinφ)/ (1 + cosφ) (1 - sinφ)/ (1 + sinφ) (1 + cosφ)/ (1 - sinφ) (1 + sinφ)/ (1 - sinφ) (1 - sinφ)/ (1 + cosφ) (1 - sinφ)/ (1 + sinφ) ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a bolt and nut is made of mild steel, then the effective height of nut is made equal to (where d = Nominal diameter of bolt) 0.75 d 0.5 d d 1.25 d 0.75 d 0.5 d d 1.25 d ANSWER DOWNLOAD EXAMIANS APP
Machine Design A screw is said to be over hauling screw, if its efficiency is More than 50% Less than 50% Equal to 50% None of these More than 50% Less than 50% Equal to 50% None of these ANSWER DOWNLOAD EXAMIANS APP
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