THEORY OF MACHINE QUIZ

Along the sliding surface

Parallel to the sliding surface

Perpendicular to the sliding surface

At 45° to the sliding surface

Longitudinal vibration

Transverse vibration

None of these

Torsional vibration

α = 90° - φ

α = 45° + φ/2

α = 45° - φ/2

α = 90° + φ

Rolling pair

Sliding pair

Turning pair

Cylindrical pair

Oscillate with increasing time period

Oscillate with decreasing amplitude

Return to equilibrium position without oscillation

Oscillate with constant amplitude

Less than

Greater than

None of these

Equal to

Positive throughout

Positive during major portion of the stroke

Negative throughout

Negative during major portion of the stroke

Radius of rotation of balls increases as the equilibrium speed decreases

Radius of rotation of balls decreases as the equilibrium speed decreases

Radius of rotation of balls decreases as the equilibrium speed increases

Radius of rotation of balls increases as the equilibrium speed increases

D₂/D₁

D₁.D₂

D₁

D₁/D₂

Watt governor

Porter governor

Hartnell governor

Pickering governor