# An epicyclic gear train consists of a sun gear, four planet gears pinned on a planet carrier (which is mounted on the sun gear) and a fixed ring gear (in which the entire sun-planet gear assembly is inserted). If the ring gear has 56 teeth and each planet gear has 18 teeth, the number of teeth on the sun gear is___________

## Question ID - 1 :- An epicyclic gear train consists of a sun gear, four planet gears pinned on a planet carrier (which is mounted on the sun gear) and a fixed ring gear (in which the entire sun-planet gear assembly is inserted). If the ring gear has 56 teeth and each planet gear has 18 teeth, the number of teeth on the sun gear is___________

3537

Answer Key : (20.00 to 20.00) -

20.00 to 20.00

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A self-propelled power reaper with a $1.2 \mathrm{~m}$ wide cutter bar was operated at a forward speed of $4 \mathrm{~km} \mathrm{~h}^{-1}$. Turning loss during operation was observed to be 25 minutes per hectare. Neglecting any other losses, the field efficiency of the reaper will be
_____________________% .