Machine Design According to I.B.R., when the thickness of boiler shell (t) is greater than 8 mm, then the diameter of rivet hole (d) is obtained by Equating tearing resistance of the plate to the shearing resistance of the rivets Equating tearing resistance of the plate to the crushing resistance of the rivets None of these Equating shearing resistance to the crushing resistance of the rivets Equating tearing resistance of the plate to the shearing resistance of the rivets Equating tearing resistance of the plate to the crushing resistance of the rivets None of these Equating shearing resistance to the crushing resistance of the rivets ANSWER DOWNLOAD EXAMIANS APP
Machine Design The ratio of driving tensions for flat belts, neglecting centrifugal tension, is (where T₁, and T₂ = Tensions on the tight and slack sides of belt respectively, μ = Coefficient of friction, between the belt and pulley, and θ = Angle of contact) T₁/T₂ =eμθ T₁/T₂ = log μθ log (T₁/T₂) = μθ T₁/T₂ = μθ T₁/T₂ =eμθ T₁/T₂ = log μθ log (T₁/T₂) = μθ T₁/T₂ = μθ ANSWER DOWNLOAD EXAMIANS APP
Machine Design A compound belt drive is used when None of these Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions None of these Shafts are arranged parallel and rotate in the opposite directions Shafts are arranged at right angles and rotate in one definite direction Shafts are arranged parallel and rotate in the same directions ANSWER DOWNLOAD EXAMIANS APP
Machine Design For longitudinal joint in boilers, the type of joint used is Butt joint with single cover plate Any one of the above Lap joint with one ring overlapping the other Butt joint with double cover plate Butt joint with single cover plate Any one of the above Lap joint with one ring overlapping the other Butt joint with double cover plate ANSWER DOWNLOAD EXAMIANS APP
Machine Design Two closely coiled helical springs with stiffness k₁ and k₂ respectively are connected in series. The stiffness of an equivalent spring is given by (k₁ - k₂)/ (k₁ + k₂) (k₁ + k₂)/ (k₁ k₂) (k₁ k₂)/ (k₁ + k₂) (k₁ - k₂)/ (k₁ k₂) (k₁ - k₂)/ (k₁ + k₂) (k₁ + k₂)/ (k₁ k₂) (k₁ k₂)/ (k₁ + k₂) (k₁ - k₂)/ (k₁ k₂) ANSWER DOWNLOAD EXAMIANS APP
Machine Design The shock absorbing capacity of a bolt can be increased by Increasing shank diameter Making shank diameter equal to core diameter of thread Tightening it properly Grinding the shank Increasing shank diameter Making shank diameter equal to core diameter of thread Tightening it properly Grinding the shank ANSWER DOWNLOAD EXAMIANS APP
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