Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Watt’s mechanism Peaucellier’s mechanism Robert’s mechanism Grasshopper mechanism Watt’s mechanism Peaucellier’s mechanism Robert’s mechanism Grasshopper mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The retardation of a flat faced follower when it has contact at the apex of the nose of a circular arc cam, is given by (where OQ = Distance between the centre of circular flank and centre of nose) ω² × OQ ω² × OQ tanθ ω² × OQ cosθ ω² × OQ sinθ ω² × OQ ω² × OQ tanθ ω² × OQ cosθ ω² × OQ sinθ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The displacement of the reciprocating roller follower, when it has contact with the straight flanks of the tangent cam, is given by (where r₁ = Minimum radius of the cam, r₂ = Radius of the roller follower, and θ = Angle turned by the cam from the beginning of the follower displacement) (r₁ + r₂) [(1 - cosθ)/cosθ] (r₁ - r₂) (1 - cosθ) (r₁ - r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) (1 + cosθ) (r₁ + r₂) [(1 - cosθ)/cosθ] (r₁ - r₂) (1 - cosθ) (r₁ - r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) (1 + cosθ) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the primary direct crank of a reciprocating engine makes an angle of 'θ' with the line of stroke, then the secondary direct crank will make an angle of _________ with the line of stroke. θ 4θ 2θ θ/2 θ 4θ 2θ θ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of the belt for maximum power is (where m = Mass of the belt in kg per meter length) (T.g)/3 T/3 √(3m/T) √(T/3m) (T.g)/3 T/3 √(3m/T) √(T/3m) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following can completely balance several masses revolving in different planes on a shaft? A single mass in different planes Two masses in any two planes Two equal masses in any two planes A single mass in one of the planes of the revolving masses A single mass in different planes Two masses in any two planes Two equal masses in any two planes A single mass in one of the planes of the revolving masses ANSWER DOWNLOAD EXAMIANS APP
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