Theory of Machine The frictional torque transmitted in a truncated conical pivot bearing, considering uniform wear, is (2/3).μ W cosec α (r₁ + r₂) (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W cosec α (r₁ + r₂) (2/3).μ W cosec α (r₁ + r₂) (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (1/2). μ W cosec α (r₁ + r₂) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the radius of rotation of balls __________ as the equilibrium speed increases, the governor is said to be unstable. Decreases None of these Remains constant Increases Decreases None of these Remains constant Increases ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In vibration isolation system, if ω/ωn < 2, then for all values of damping factor, the transmissibility will be (where ω = Angular speed of the system, ωn = Natural frequency of vibration of the system) Equal to unity Greater than unity Zero Less than unity Equal to unity Greater than unity Zero Less than unity ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The instantaneous center of a rigid thin disc rolling on a plane rigid surface is located at The point on the circumference situated vertically opposite to the contact point The center of the disc An infinite distance on the plane surface The point of contact The point on the circumference situated vertically opposite to the contact point The center of the disc An infinite distance on the plane surface The point of contact ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The Coriolis component of acceleration acts Along the sliding surface Perpendicular to the sliding surface At 45° to the sliding surface Parallel to the sliding surface Along the sliding surface Perpendicular to the sliding surface At 45° to the sliding surface Parallel to the sliding surface ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a Hartnell governor, if a spring of greater stiffness is used, then the governor will be Isochronous More sensitive Less sensitive Unaffected of sensitivity Isochronous More sensitive Less sensitive Unaffected of sensitivity ANSWER DOWNLOAD EXAMIANS APP
EXAMIANS