Theory of Machine Open pairs are those which have 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 Elements of pairs not held together mechanically Surface contact between the two elements when in motion ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The example of completely constrained motion is a Motion of a square bar in a square hole Motion of a shaft with collars at each end in a circular hole All of these Motion of a piston in the cylinder of a steam engine Motion of a square bar in a square hole Motion of a shaft with collars at each end in a circular hole All of these Motion of a piston in the cylinder of a steam engine ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to reciprocating masses Varies in magnitude and direction both Varies in magnitude but constant in direction Constant in magnitude and direction both Varies in direction but constant in magnitude Varies in magnitude and direction both Varies in magnitude but constant in direction Constant in magnitude and direction both Varies in direction but constant in magnitude ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A completely constrained motion can be transmitted with. 1 link with pin joints 3 links with pin joints 4 links with pin joints 2 links with pin joints 1 link with pin joints 3 links with pin joints 4 links with pin joints 2 links with pin joints ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The primary unbalanced force is maximum _________ in one revolution of the crank. Eight times Sixteen times Four times Twice Eight times Sixteen times Four times Twice ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a flat collar bearing, considering uniform pressure, is (where r₁ and r₂ = External and internal radii of collar respectively) (2/3). μ W (r₁ + r₂) (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W (r₁ + r₂) (2/3). μ W (r₁ + r₂) (1/2). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W (r₁ + r₂) ANSWER DOWNLOAD EXAMIANS APP
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