Theory of Machine The equation of free vibrations of a system is (d²x/dt²) +36 π²x, its natural frequency is 3 Hz 3π Hz 6 Hz 6π Hz 3 Hz 3π Hz 6 Hz 6π Hz ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The frictional torque transmitted in a truncated conical pivot bearing, considering uniform wear, is (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3).μ W cosec α (r₁ + r₂) (1/2). μ W cosec α (r₁ + r₂) (1/2). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3). μ W cosec α [(r₁³ - r₂³)/(r₁² - r₂²)] (2/3).μ W cosec α (r₁ + r₂) (1/2). μ W cosec α (r₁ + r₂) 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 center of the disc The point on the circumference situated vertically opposite to the contact point The point of contact An infinite distance on the plane surface The center of the disc The point on the circumference situated vertically opposite to the contact point The point of contact An infinite distance on the plane surface ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The sense of Coriolis component is such that it Leads the sliding velocity vector by 180° Leads the sliding velocity vector by 90° Lags the sliding velocity vector by 90° Is along the sliding velocity vector Leads the sliding velocity vector by 180° Leads the sliding velocity vector by 90° Lags the sliding velocity vector by 90° Is along the sliding velocity vector ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the two elements of a pair have a surface contact when relative motion takes place and the surface of one element slides over the surface of the other, the pair formed is known as a Higher pair Self-closed pair Force-closed pair Lower pair Higher pair Self-closed pair Force-closed pair Lower pair ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In gears, interference takes place when Pitch of the gears is not same Gears do not move smoothly in the absence of lubrication The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut Pitch of the gears is not same Gears do not move smoothly in the absence of lubrication The tip of a tooth of a mating gear digs into the portion between base and root circles Gear teeth are undercut ANSWER DOWNLOAD EXAMIANS APP
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