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) 2μ sinθ/(θ + sinθ) 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) ANSWER DOWNLOAD EXAMIANS APP
Machine Design For hardening alloy steels and high speed steels, they are heated to 500 to 600°C 1100 to 1300°C 1300 to 1500°C 700 to 900°C 500 to 600°C 1100 to 1300°C 1300 to 1500°C 700 to 900°C ANSWER DOWNLOAD EXAMIANS APP
Machine Design The bending moment ‘M’ and a torque ‘T’ is applied on a solid circular shaft. If the maximum bending stress equals to maximum shear stress developed, then ‘M’ is equal to T/2 1 T 4 T 2 T T/2 1 T 4 T 2 T ANSWER DOWNLOAD EXAMIANS APP
Machine Design Wahl's stress factor __________ very rapidly as the spring index decreases. Increases None of these Remain same Decreases Increases None of these Remain same Decreases ANSWER DOWNLOAD EXAMIANS APP
Machine Design The strength of a riveted joint is equal to Least value of Pt Ps and Pc Shearing strength of rivet (Ps) Tearing strength of plate (Pt) Crushing strength of rivet (Pc) Least value of Pt Ps and Pc Shearing strength of rivet (Ps) Tearing strength of plate (Pt) Crushing strength of rivet (Pc) ANSWER DOWNLOAD EXAMIANS APP
Machine Design In cylindrical cams, the follower moves In a direction parallel to the cam axis In a direction perpendicular to the cam axis Along the cam axis In any direction irrespective of cam axis In a direction parallel to the cam axis In a direction perpendicular to the cam axis Along the cam axis In any direction irrespective of cam axis ANSWER DOWNLOAD EXAMIANS APP
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