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 point of contact The center of the disc An infinite distance on the plane surface The point on the circumference situated vertically opposite to the contact point The point of contact The center of the disc An infinite distance on the plane surface ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If ω/ωn = 2, where co is the frequency of excitation and ωn is the natural frequency of vibrations, then the transmissibility of vibration will the 2 0.5 1 1.5 2 0.5 1 1.5 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The static balancing is satisfactory for low speed rotors but with increasing speeds, dynamic balancing becomes necessary. This is because, the Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds Effects of unbalances are proportional to the square of the speed Effects of unbalances are directly proportional to the speed Unbalanced couples are caused only at higher speeds Unbalanced forces are not dangerous at higher speeds ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The unbalanced force due to revolving 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 The sensitiveness of the governor _____ as the speed range decreases. Decreases Increases Remains unaffected None of the listed here Decreases Increases Remains unaffected None of the listed here ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a body moves with simple harmonic motion, the product of its periodic time and frequency is equal to Zero π π/2 One Zero π π/2 One ANSWER DOWNLOAD EXAMIANS APP
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