Machine Design The spring mostly used in gramophones is Volute spring Flat spiral spring Conical spring Helical spring Volute spring Flat spiral spring Conical spring Helical spring 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 3.5 2.5 2.8 3 3.5 2.5 2.8 3 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In composite or reverse laid ropes Wires in two adjacent strands are twisted in opposite direction Direction of twist of wires and strands are same Wires are not twisted Direction of twist of wires in strands is opposite to the direction of twist of strands Wires in two adjacent strands are twisted in opposite direction Direction of twist of wires and strands are same Wires are not twisted Direction of twist of wires in strands is opposite to the direction of twist of strands ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a band and block brake, the ratio of tensions on the tight and slack sides of band is given by (where μ = Coefficient of friction between the blocks and the drum, θ = Semi-angle of each block subtending at the centre of drum, and n = Number of blocks) T₁/T₂ = (μθ)n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n T₁/T₂ = μθ × n T₁/T₂ = (μθ)n T₁/T₂ = [(1 - μ tanθ)/ (1 + μ tanθ)]n T₁/T₂ = [(1 + μ tanθ)/ (1 - μ tanθ)]n T₁/T₂ = μθ × n ANSWER DOWNLOAD EXAMIANS APP
Machine Design If the tearing efficiency of a riveted joint is 75%, then the ratio of diameter of rivet to the pitch is equal to 0.5 0.25 0.6 0.2 0.5 0.25 0.6 0.2 ANSWER DOWNLOAD EXAMIANS APP
Machine Design Which is positive drive? Timing belt Flat belt drive V belt drive Crossed belt drive Timing belt Flat belt drive V belt drive Crossed belt drive ANSWER DOWNLOAD EXAMIANS APP
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