Theory of Machine The pitching of a ship produces forces on the bearings which act __________ to the motion of the ship. Horizontally and parallel Horizontally and perpendicular Vertically and perpendicular Vertically and parallel Horizontally and parallel Horizontally and perpendicular Vertically and perpendicular Vertically and parallel ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The tractive force in a locomotive with two cylinders is given by (where c = Fraction of reciprocating parts per cylinder, m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, and θ = Angle of inclination of crank to the line of stroke) m.ω².r cosθ m.ω².r sinθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r (cosθ - sinθ) m.ω².r cosθ m.ω².r sinθ (1 - c).m.ω².r (cosθ - sinθ) m.ω².r (cosθ - sinθ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In under damped vibrating system, if x₁ and x₂ are the successive values of the amplitude on the same side of the mean position, then the logarithmic decrement is equal to log(x₁.x₂) log(x₁/x₂) x₁/x₂ loge(x₁/x₂) log(x₁.x₂) log(x₁/x₂) x₁/x₂ loge(x₁/x₂) 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 l₁ + l₂ + l₃ l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ (l₁ + l₂ + l₃)/3 l₁ + l₂ + l₃ l = l₁ + l₂.(d₁/d₂)³ + l₂.(d₁/d₃)³ l = l₁ + l₂.(d₁/d₂)⁴ + l₃.(d₁/d₃)⁴ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Length of arc of contact is given by Arc of approach - Arc of recess Arc of approach × Arc of recess Arc of approach / Arc of recess Arc of approach + Arc of recess Arc of approach - Arc of recess Arc of approach × Arc of recess Arc of approach / Arc of recess Arc of approach + Arc of recess ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In an open pair, the two elements of a pair Have a line or point contact when in motion Have a surface contact when in motion Are kept in contact by the action of external forces, when in motion Are not held together mechanically Have a line or point contact when in motion Have a surface contact when in motion Are kept in contact by the action of external forces, when in motion Are not held together mechanically ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS