Answer the following problems in detail.

problem 1) Describe the working of a vane pump and describe how the displacement of this pump can be varied.

problem 2) Describe the construction and working of a pressure compensated flow control valve.

problem 3) Describe the working of a 5/2 solenoid operated Pneumatic DCV.

problem 4) Describe the concept of degrees of freedom associated with robotics.

problem 5) Describe the degrees of freedom associated with a robot wrist.

problem 6) Describe the working of a Centrifugal Hopper feeder with a sketch.

problem 7) Draw the step position diagram and describe the working of a pneumatic circuit for controlling 2 actuators in the sequence of A⁺ B⁺ A^– B^– using only pneumatic components.

problem 8) Describe the use of pilot check valve in a hydraulic circuit.

problem 9) What are the different methods of programming Robots? Describe powered lead-through programming in detail.

problem 10) A Robot is to be used for spot welding of automobile bodies e.g. cars. Choose the robot to be used and describe the geometry, control strategy, type of drive etc of the selected robot.

problem 11) prepare down the advantages and disadvantages of automation.