Theory of Machine A simple spring-mass vibrating system has a natural frequency of fn. If the spring stiffness is halved and the mass is doubled, then the natural frequency will become fn/2 8 fn 4 fn 2 fn fn/2 8 fn 4 fn 2 fn ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the following is a lower pair? Piston and cylinder Both (A) and (B) above Ball and socket i Cam and follower Piston and cylinder Both (A) and (B) above Ball and socket i Cam and follower ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The transmissibility, for all values of damping factor, will be less than unity, if ω/ωn is Greater than 2 Equal to 2 Equal to 1 Less than 2 Greater than 2 Equal to 2 Equal to 1 Less than 2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In an ideal machine, the output as compared to input is May be less or more depending on efficiency Less Equal More May be less or more depending on efficiency Less Equal More ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of sliding of meshing gear teeth is (Where ω₁ and ω₂ are angular velocities of meshing gears and ‘y’ is distance between point of contact and the pitch point) (ω₁ × ω₂) y (ω₁ + ω₂)/y (ω₁ + ω₂) y (ω₁/ω₂) y (ω₁ × ω₂) y (ω₁ + ω₂)/y (ω₁ + ω₂) y (ω₁/ω₂) y ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Elements of pairs held together mechanically is known as Mechanical pair Closed pair Rolling pair Open pair Mechanical pair Closed pair Rolling pair Open pair ANSWER DOWNLOAD EXAMIANS APP
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