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Q2. In a four-ram hydraulic steering gear the centre line of the rams is 1.2 m from the centreline of the rudder stock. The diameter of the rams is 280 mm and the diameter of the rudder stock is 420 mm. Movement of the rudder is limited to 35° on either side and the maximum allowable shear stress in the rudder stock is 70 MN/m². Calculate EACH of the following:

(a) The maximum allowable torque on the rudder stock;

(b) The pressure to which the relief valves on the rams should be set.