In a reverted gear train with four gears, two gears P and Q are meshin – McqOptions

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1.	In a reverted gear train with four gears, two gears P and Q are meshing Q – R is a compound gear, while R and S are meshing. The modulus of P and R are 6 mm and 5 mm respectively. The numbers of teeth in P, Q and R are 24, 36 and 40 respectively. The number of teeth in gear S is:
A.	32
B.	38
C.	42
D.	28
Answer» B. 38

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