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Q6. An electric motor drives a pump through the compound gear train as shown In Fig Q6. The power required by the pump is 70 kW at a speed of 125 rev/min. The velocity ratio of the entire gear system is 24. The transmission efficiency is 90 per cent and the pitch of the teeth is the same for all gear wheels.

Calculate EACH of the following:

(a) the number of teeth on gears A and B. (7)

(b) the output torque from the motor. (7)

(c) the speed of gear B. (2)