Theory of Machine Open pairs are those which have Surface contact between the two elements when in motion Elements of pairs not held together mechanically Two elements that permit relative motion Point or line contact between the two elements when in motion Surface contact between the two elements when in motion Elements of pairs not held together mechanically Two elements that permit relative motion Point or line contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Higher pairs are those which have 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 Point or line contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The cam and follower is an example of Sliding pair Higher pair Lower pair Rolling pair Sliding pair Higher pair Lower pair Rolling pair 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 clockwise direction, then the rubbing velocity at the pin joint O is (where r = Radius of the pin at O) (ω₁ - ω₂)2r ω₁.ω₂.r (ω₁ - ω₂)r (ω₁ + ω₂)r (ω₁ - ω₂)2r ω₁.ω₂.r (ω₁ - ω₂)r (ω₁ + ω₂)r ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gears, interference takes place when Pitch of the gears is not same The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut Gears do not move smoothly in the absence of lubrication Pitch of the gears is not same The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut Gears do not move smoothly in the absence of lubrication ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of a particle moving with simple harmonic motion, at any instant is given by (where ω = Displacement of the particle from mean position) ω² √(r² - x²) ω √(r² - x²) ω √(x² - r²) ω² √(x² - r²) ω² √(r² - x²) ω √(r² - x²) ω √(x² - r²) ω² √(x² - r²) ANSWER DOWNLOAD EXAMIANS APP
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