Theory of Machine The radius of a friction circle for a shaft rotating inside a bearing is (where r = Radius of shaft, and tan φ = Coefficient of friction between the shaft and bearing) r cosφ r tanφ r sinφ (r/2) cosφ r cosφ r tanφ r sinφ (r/2) cosφ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A slider moves at a velocity v on a link revolving at ω rad/s. The coriolis component of acceleration is ω²v ωv 2ωv 2ωv² ω²v ωv 2ωv 2ωv² ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free transverse vibrations due to a point load acting over a simply supported shaft is equal to (where δ = Static deflection of a simply supported shaft due to the point load) 0.571/√δ 0.4985/√δ 0.5615/√δ 0.6253/√δ 0.571/√δ 0.4985/√δ 0.5615/√δ 0.6253/√δ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Peaucellier’s mechanism has Four links Six links Twelve links Eight links Four links Six links Twelve links Eight links ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by μ₁ = μ cos β μ₁ = μ sin β μ₁ = μ/cos β μ₁ = μ/sin β μ₁ = μ cos β μ₁ = μ sin β μ₁ = μ/cos β μ₁ = μ/sin β ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A disturbing mass m₁ attached to the rotating shaft may be balanced by a single mass m₂ attached in the same plane of rotation as that of m₁, such that (where r₁ and r₂ are the radii of rotation of m₁ and m₂ respectively) m₁ r₂ = m₂ r₁ None of these m₁ r₁ = m₂ r₂ m₁ m₂ = r₁ r₂ m₁ r₂ = m₂ r₁ None of these m₁ r₁ = m₂ r₂ m₁ m₂ = r₁ r₂ ANSWER DOWNLOAD EXAMIANS APP
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