In surface mines around the world, most popular mode of mining is truck-shovel model where the material loosened by blasting is loaded on the dump trucks by shovels and hauled to either a crusher or hopper to carry it to the processing plant. The dump trucks as shown in the picture below use 2 telescopic cylinders to hoist the body. Operator should be able to hold the body in any position and should have option to allow the body to float down using gravity or use hydraulic pressure to lower the body.rProblem statement: Design the hoist system of mining dump truck. Here is the key information. Task 1: (15 marks) Develop a hydraulic circuit with an appropriate direction control valve to perform the following operations. Use a solenoid-operated and spring-centred direction control valve. a) Raise the body b) Hold the body in any position c) Float the body to lower it under gravity d) Lower the body using hydraulic pressu