Theory of Machine The frictional torque transmitted in a flat pivot bearing, assuming uniform wear, is (Where μ = Coefficient of friction, W=Load over the bearing, R=Radius of bearing) ½μWR μwr ¾μWR ²/₃ μWR ½μWR μwr ¾μWR ²/₃ μWR 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 = 90° - φ α = 90° + φ α = 45° + φ/2 α = 45° - φ/2 α = 90° - φ α = 90° + φ α = 45° + φ/2 α = 45° - φ/2 ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine The gear train usually employed in clocks is a Simple gear train Reverted gear train Sun and planet gear Differential gear Simple gear train Reverted gear train Sun and planet gear Differential gear ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Longitudinal vibrations are said to occur when the particles of a body moves Perpendicular to its axis In a circle about its axis Parallel to its axis None of these Perpendicular to its axis In a circle about its axis Parallel to its axis None of these ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine In a steam engine, the link constitutes a Piston, piston rod and cross-head All of these Crank pin, crankshaft and flywheel Connecting rod with big and small end brasses, caps and bolts Piston, piston rod and cross-head All of these Crank pin, crankshaft and flywheel Connecting rod with big and small end brasses, caps and bolts ANSWER DOWNLOAD EXAMIANS APP
Theory of Machine Cross head and guides form a Turning pair Sliding pair Higher pair Lower pair Turning pair Sliding pair Higher pair Lower pair ANSWER DOWNLOAD EXAMIANS APP
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