Theory of Machine The number of links and instantaneous centers in a reciprocating engine mechanism are 4, 4 4, 6 5, 4 4, 5 4, 4 4, 6 5, 4 4, 5 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The velocity of any point in mechanism relative to any other point on the mechanism on velocity polygon is represented by the line Joining the corresponding points Not possible to determine with these data Perpendicular to line as per (A) At 45° to line as per (A) Joining the corresponding points Not possible to determine with these data Perpendicular to line as per (A) At 45° to line as per (A) ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A rotor which is balanced statically but not dynamically is supported on two bearings L apart and at high speed of the rotor, reaction on the left bearing is R. The right side of the bearing is shifted to a new position 2L apart from the left bearing. At the same rotor speed, dynamic reaction on the left bearing in the new arrangement will Become equal to 2R Become equal to R/2 Remain same as before Become equal to R/4 Become equal to 2R Become equal to R/2 Remain same as before Become equal to R/4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The stress induced in a body will be shear stress, when it is subjected to None of these Torsional vibrations Longitudinal vibrations Transverse vibrations None of these Torsional vibrations Longitudinal vibrations Transverse vibrations ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The condition for correct steering of a Davis steering gear is (where α = Angle of inclination of the links to the vertical) tanα = c/2b cosα = c/b sinα = b/c cotα = c/2b tanα = c/2b cosα = c/b sinα = b/c cotα = c/2b ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When a shaking force is transmitted through the springs, damping becomes detrimental when the ratio of its frequency to the natural frequency is greater than 1 0.25 2 0.5 1 0.25 2 0.5 ANSWER DOWNLOAD EXAMIANS APP
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