Theory of Machine If some links are connected such that motion between them can take place in more than one direction, it is called Completely constrained motion Successfully constrained motion Incompletely constrained motion Partially constrained motion Completely constrained motion Successfully constrained motion Incompletely constrained motion Partially constrained motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, the lift of the sleeve is given by (where r₁ and r₂ = Max. and min. radii of rotation, x = Length of ball arm of the lever, and y = Length of sleeve arm of the lever) (r₁ - r₂) (y/x) (r₁ + r₂) (x/y) (r₁ - r₂) (x/y) (r₁ + r₂) (y/x) (r₁ - r₂) (y/x) (r₁ + r₂) (x/y) (r₁ - r₂) (x/y) (r₁ + r₂) (y/x) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If there are L number of links in a mechanism, then number of possible inversions is equal to L + 1 L L - 1 L + 2 L + 1 L L - 1 L + 2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 90° + φ α = 45° - φ/2 α = 90° - φ α = 45° + φ/2 α = 90° + φ α = 45° - φ/2 α = 90° - φ α = 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which one of the following is an exact straight line mechanism using lower pairs? Grasshopper mechanism Peaucellier’s mechanism Robert’s mechanism Watt’s mechanism Grasshopper mechanism Peaucellier’s mechanism Robert’s mechanism Watt’s mechanism 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 θ/2 2θ 4θ θ θ/2 2θ 4θ ANSWER DOWNLOAD EXAMIANS APP
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