Theory of Machine The centre of gravity of a coupler link in a four bar mechanism will experience No acceleration Both linear and angular acceleration Only angular acceleration Only linear acceleration No acceleration Both linear and angular acceleration Only angular acceleration Only linear acceleration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine An exact straight line motion mechanism is a All of these Scott-Russell's mechanism Hart's mechanism Peaucellier's mechanism All of these Scott-Russell's mechanism Hart's mechanism Peaucellier's mechanism ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The approximate straight line mechanism is a 3 bar linkage 8 bar linkage Four bar linkage 6 bar linkage 3 bar linkage 8 bar linkage Four bar linkage 6 bar linkage ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If ω/ωn is very low for a body vibrating under steady state vibrations, the phase angle for all values of damping factors, will tend to approach 180° 360° 90° 0° 180° 360° 90° 0° 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) (r₁ - r₂) (1 - cosθ) (r₁ + r₂) [(1 - cosθ)/cosθ] (r₁ - r₂) [(1 - cosθ)/cosθ] (r₁ + r₂) (1 + cosθ) (r₁ - r₂) (1 - cosθ) (r₁ + r₂) [(1 - cosθ)/cosθ] (r₁ - r₂) [(1 - cosθ)/cosθ] ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a four stroke I.C. engine, the turning moment during the compression stroke is Positive during major portion of the stroke Negative during major portion of the stroke Negative throughout Positive throughout Positive during major portion of the stroke Negative during major portion of the stroke Negative throughout Positive throughout ANSWER DOWNLOAD EXAMIANS APP
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