power question

QUESTION 5 (a) List down THREE (3) types of gear. Explain the function of each type. [9 marks] (b) The gear system, consisting of a small driver gear and a large driven gear, is designed as shown in Figure Q5(b), where the driver will transmit power to the driven gear. In a steady state operation, the driven gear must turn at 150 rpm and produce an output torque of 500 Nm. Calculate: Driven Driver Figure Q5(b): Simple gear system. (i) The input torque of the driver gear if the gear ratio, n = 0.50 [4 marks] (ii) The revolution per minute of driver gear. [4 marks] (iii) The output power of the driven gear. [4 marks] (iv) The required input power of the driver gear if the gear system has only 88% efficiency. [4 marks]