Mechanical Engineering - Theory of machines
Exercise : Theory of machines - Section 9
- Theory of machines - Section 1
- Theory of machines - Section 2
- Theory of machines - Section 3
- Theory of machines - Section 4
- Theory of machines - Section 5
- Theory of machines - Section 6
- Theory of machines - Section 7
- Theory of machines - Section 8
- Theory of machines - Section 9
- Theory of machines - Section 10
41.
When the tip of a tooth undercuts the root on its mating gear, it is known as interference.
42.
Under logarithmic decrement, the amplitude of successive vibrations are
43.
The efficiency of a screw jack is maximum, when (where α = Helix angle, and φ = Angle of friction)
α = 45° + 
α = 45° -
α = 90° + φ
α = 90° - φ
44.
A fixed gear having 200 teeth is in mesh with another gear having 50 teeth. The two gears are connected by an arm. The number of turns made by the smaller gear for one revolution of arm about the centre of bigger gear is
45.
In a cone pulley, if the sum of radii of the pulleys on the driving and driven shafts is Constant, then
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