Theory of Machine A mass of 1 kg is attached to the end of a spring with a stiffness of 0.7 N/mm. The critical damping coefficient of this system is 52.92 N-s/m 18.52 N-s/m 529.2 N-s/m 1.4 N-s/m 52.92 N-s/m 18.52 N-s/m 529.2 N-s/m 1.4 N-s/m ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 45° - φ/2 α = 45° + φ/2 α = 90° - φ α = 90° + φ α = 45° - φ/2 α = 45° + φ/2 α = 90° - φ α = 90° + φ ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In order to balance the reciprocating masses, Primary forces and couples must be balanced None of these Secondary forces and couples must be balanced Both (A) and (B) Primary forces and couples must be balanced None of these Secondary forces and couples must be balanced Both (A) and (B) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the pitching of a ship is upward, the effect of gyroscopic couple acting on it will be To move the ship towards starboard To move the ship towards port side To raise the bow and lower the stern To raise the stern and lower the bow To move the ship towards starboard To move the ship towards port side To raise the bow and lower the stern To raise the stern and lower the bow ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The equivalent length of a simple pendulum which gives the same frequency as a compound pendulum is (kG² + h²)/h h²/(kG² + h²) (kG² + h²)/h² h/(kG² + h²) (kG² + h²)/h h²/(kG² + h²) (kG² + h²)/h² h/(kG² + h²) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The engine of an aeroplane rotates in clockwise direction when seen from the tail end and the aeroplane takes a turn to the left. The effect of gyroscopic couple on the aeroplane will be To dip the nose and tail To raise the nose and tail To raise the nose and dip the tail To dip the nose and raise the tail To dip the nose and tail To raise the nose and tail To raise the nose and dip the tail To dip the nose and raise the tail ANSWER DOWNLOAD EXAMIANS APP
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