Theory of Machine If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to D₁.D₂ D₁/D₂ D₂/D₁ D₁ D₁.D₂ D₁/D₂ D₂/D₁ D₁ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The natural frequency of free longitudinal vibrations is equal to (where m = Mass of the body, s = Stiffness of the body, and δ = Static deflection of the body) 0.4985/√δ 1/2π × √(s/m) Any one of the listed here 1/2π × √(g/δ) 0.4985/√δ 1/2π × √(s/m) Any one of the listed here 1/2π × √(g/δ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a Force-closed pair Self-closed pair Higher pair Lower pair Force-closed pair Self-closed pair Higher pair Lower pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the below are inversions of slider crank mechanism?1. Oscillating cylinder engine mechanism2. Toggle mechanism3. Radial cylinder engine mechanism4. Quick return mechanism 1, 3 and 4 1, 2 and 3 1, 2 and 4 2, 3 and 4 1, 3 and 4 1, 2 and 3 1, 2 and 4 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of higher pair is All of these Ball and roller bearings Gears, cams Belt, rope and chain drives All of these Ball and roller bearings Gears, cams Belt, rope and chain drives ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force due to inertia of reciprocating parts in a reciprocating engine is given by (where m = Mass of reciprocating parts, ω = Angular speed of crank, r = Radius of crank, θ = Angle of inclination of crank with the line of stroke, and n = Ratio of the length of connecting rod to radius of crank) m.ω².r sinθ m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r (cos 2θ/n) m.ω².r sinθ m.ω².r cosθ m.ω².r (sin 2θ/n) m.ω².r (cos 2θ/n) ANSWER DOWNLOAD EXAMIANS APP
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