Theory of Machine In considering friction of a V-thread, the virtual coefficient of friction (μ₁) is given by μ₁ = μ/sin β μ₁ = μ cos β μ₁ = μ/cos β μ₁ = μ sin β μ₁ = μ/sin β μ₁ = μ cos β μ₁ = μ/cos β μ₁ = μ sin β ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Two heavy rotating masses are connected by shafts of lengths l₁, l₂ and l₃ and the corresponding diameters are d₁, d₂ and d₃. This system is reduced to a torsionally equivalent system having uniform diameter d = d₁ of the shaft. The equivalent length of the shaft is (l₁ + l₂ + l₃)/3 l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ l₁ + l₂ + l₃ (l₁ + l₂ + l₃)/3 l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ l₁ + l₂ + l₃ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Coriolis component of acceleration acts Along the sliding surface Perpendicular to the sliding surface Parallel to the sliding surface At 45° to the sliding surface Along the sliding surface Perpendicular to the sliding surface Parallel to the sliding surface At 45° to the sliding surface ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A higher pair has__________. No contact None of these Surface contact Point contact No contact None of these Surface contact Point contact ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The danger of breakage and vibration is maximum Near the critical speed Below the critical speed None of these Above the critical speed Near the critical speed Below the critical speed None of these Above the critical speed ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The motion between a pair when limited to a definite direction, irrespective of the direction of force applied, is known as Successfully constrained motion Completely constrained motion Incompletely constrained motion None of these Successfully constrained motion Completely constrained motion Incompletely constrained motion None of these ANSWER DOWNLOAD EXAMIANS APP
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