Theory of Machine Klein's construction gives a graphic construction for Four bar chain mechanism Velocity polygon Slider-crank mechanism Acceleration polygon Four bar chain mechanism Velocity polygon Slider-crank mechanism Acceleration polygon ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Davis steering gear consists of Turning pairs Rolling pairs Higher pairs Sliding pairs Turning pairs Rolling pairs Higher pairs Sliding pairs ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two elements of a pair are said to form a higher pair, when they Are kept in contact by the action of external forces, when in motion Have a line or point contact when in motion Permit relative motion Have a surface contact when in motion Are kept in contact by the action of external forces, when in motion Have a line or point contact when in motion Permit relative motion Have a surface contact when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The two links OA and OB are connected by a pin joint at O. If the link OA turns with angular velocity ω₁ rad/s in the clockwise direction and the link OB turns with angular velocity ω₂ rad/s in the anticlockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O) (ω₁ + ω₂) r (ω₁ - ω₂) r (ω₁ - ω₂) 2r ω₁.ω₂.r (ω₁ + ω₂) r (ω₁ - ω₂) r (ω₁ - ω₂) 2r ω₁.ω₂.r ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Kinematic pairs are those which have Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Two elements that permit relative motion Point or line contact between the two elements when in motion Elements of pairs not held together mechanically Surface contact between the two elements when in motion Two elements that permit relative motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical) tanα = c/2b sinα = b/c cosα = c/b cotα = c/2b tanα = c/2b sinα = b/c cosα = c/b cotα = c/2b ANSWER DOWNLOAD EXAMIANS APP
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