Machine Design Which of the following is an anti-friction bearing? Pedestal bearing Collar bearing Journal bearing Needle bearing Pedestal bearing Collar bearing Journal bearing Needle bearing ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ball bearings are provided with a cage To facilitate slipping of balls To maintain the balls at a fixed distance apart To reduce friction To prevent the lubricant from flowing out To facilitate slipping of balls To maintain the balls at a fixed distance apart To reduce friction To prevent the lubricant from flowing out 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 = [(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 T₁/T₂ = (μθ)n ANSWER DOWNLOAD EXAMIANS APP
Machine Design When a hole of diameter ‘d’ is punched in a metal of thickness 't', then the force required to punch a hole is equal to (where τu = Ultimate shear strength of the material of the plate) π/4 × d².τu t.τu π/4 × d² × tτu πd.t.τu π/4 × d².τu t.τu π/4 × d² × tτu πd.t.τu ANSWER DOWNLOAD EXAMIANS APP
Machine Design The surface finish factor for a mirror polished material is 0.45 0.65 0.85 1 0.45 0.65 0.85 1 ANSWER DOWNLOAD EXAMIANS APP
Machine Design In a flange coupling, the flanges are coupled together by means of None of these Studs Headless taper bolts Bolts and nuts None of these Studs Headless taper bolts Bolts and nuts ANSWER DOWNLOAD EXAMIANS APP
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