Theory of Machine When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to π Zero One π/2 π Zero One π/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a system subjected to damped forced vibrations, the ratio of maximum displacement to the static deflection is known as Critical damping ratio Damping factor Logarithmic decrement Magnification factor Critical damping ratio Damping factor Logarithmic decrement Magnification factor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a four-bar chain it is required to give an oscillatory motion to the follower for a continuous rotation of the crank. For the lengths of 50 mm of crank and 70 mm of the follower, determine theoretical maximum length of coupler. The minimum length of the coupler will be Slightly less than 45 mm Slightly more than 45 mm 45 mm 95 mm Slightly less than 45 mm Slightly more than 45 mm 45 mm 95 mm 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 The lower pair is a Open pair Point contact pair Sliding pair Closed pair Open pair Point contact pair Sliding pair Closed pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than 1 2 0.5 0.25 1 2 0.5 0.25 ANSWER DOWNLOAD EXAMIANS APP
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