Theory of Machine In S.H.M., the velocity vector w.r.t. displacement vector Are in phase Leads by 90° Leads by 180° Lags by 90° Are in phase Leads by 90° Leads by 180° Lags by 90° ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Which of the below are inversions of slider crank mechanism? 1. Oscillating cylinder engine mechanism 2. Toggle mechanism 3. Radial cylinder engine mechanism 4. Quick return mechanism 1, 2 and 4 1, 3 and 4 1, 2 and 3 2, 3 and 4 1, 2 and 4 1, 3 and 4 1, 2 and 3 2, 3 and 4 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine If ‘D₁’ and ‘D₂’ be the diameters of driver and driven pulleys, then belt speed is proportional to D₂/D₁ D₁ D₁/D₂ D₁.D₂ D₂/D₁ D₁ D₁/D₂ D₁.D₂ 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 = 90° + φ α = 90° - φ α = 45° + φ/2 α = 45° - φ/2 α = 90° + φ α = 90° - φ α = 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A flywheel is fitted to the crankshaft of an engine having W as the amount of indicated work per revolution and permissible limits of coefficient of fluctuation of energy and speed as CE and CS respectively. The kinetic energy of the flywheel is given by W CS / 2CE W CE / CS W CE / 2CS 2 W CE / CS W CS / 2CE W CE / CS W CE / 2CS 2 W CE / CS ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the two elements of a pair have __________ when in motion, it is said to a lower pair. Surface contact Body contact Line or point contact None of these Surface contact Body contact Line or point contact None of these ANSWER DOWNLOAD EXAMIANS APP
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