Theory of Machine The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction) α = 90° - φ α = 45° - φ/2 α = 90° + φ α = 45° + φ/2 α = 90° - φ α = 45° - φ/2 α = 90° + φ α = 45° + φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine A Porter governor is a Pendulum type governor Spring loaded governor Dead weight governor Inertia governor Pendulum type governor Spring loaded governor Dead weight governor Inertia governor ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The radial distance of a tooth from the pitch circle to the bottom of the tooth is called Addendum Clearance Dedendum Working depth Addendum Clearance Dedendum Working depth ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The secondary unbalanced force is maximum __________ in one revolution of the crank. Four times Eight times Sixteen times Two times Four times Eight times Sixteen times Two times ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the particles of a body moves perpendicular to its axis, then the body is said to have Longitudinal vibration None of these Torsional vibration Transverse vibration Longitudinal vibration None of these Torsional vibration Transverse vibration ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine When the crank is at the outer dead centre, in a reciprocating steam engine, then the acceleration of the piston will be ω² r {(n + 1)/n} ω² r {n/(n + 1)} ω² r {(n - 1)/n} ω² r {n/(n - 1)} ω² r {(n + 1)/n} ω² r {n/(n + 1)} ω² r {(n - 1)/n} ω² r {n/(n - 1)} ANSWER DOWNLOAD EXAMIANS APP
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