ME8694 Hydraulics and Pneumatics (HP)
Important questions
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Unit-1
1.Types of fluids and its properties
2.principles of flows
3.Pump classification construction working design advantage and disadvantage
Unit-2
1.Typs of valves and explain it (Most important Diagram and explaination)
2.Hydraulic motor
Unit-3
1.Accumulator , intensifiers and circuit
2.Mechanical hydraulic servo system
3.Hydrostatic transmission
Unit-4
1.FRL , muffler, air control valves
2.pneumatics actuators
3.cascad method
( Circuit diagram for this unit important)
Unit-5
1.Trouble shooting for hydraulic and pneumatic system
2.press and forklift application
3.low cost automations
**Very important questions are bolded and may be asked based on this topic
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*These questions are expected for the exams This may or may not be asked for exams All the best.... from admin Santhosh
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Introduction to Fluid power - Advantages and Applications - Fluid power systems - Types of fluids - Properties of fluids and selection - Basics of Hydraulics - Pascal's Law - Principles of flow - Friction loss - Work, Power and Torque Problems, Sources of Hydraulic power : Pumping Theory - Pump Classification - Construction, Working, Design, Advantages, Disadvantages, Performance, Selection criteria of Linear and Rotary - Fixed and Variable displacement pumps - Problems.
UNIT II HYDRAULIC ACTUATORS AND CONTROL COMPONENTS
Hydraulic Actuators: Cylinders - Types and construction, Application, Hydraulic cushioning - Hydraulic motors - Control Components : Direction Control, Flow control and pressure control valves - Types, Construction and Operation - Servo and Proportional valves - Applications - Accessories : Reservoirs, Pressure Switches - Applications - Fluid Power ANSI Symbols - Problems.
UNIT III HYDRAULIC CIRCUITS AND SYSTEMS
Accumulators, Intensifiers, Industrial hydraulic circuits - Regenerative, Pump Unloading, Double- Pump, Pressure Intensifier, Air-over oil, Sequence, Reciprocation, Synchronization, Fail-Safe, Speed Control, Hydrostatic transmission, Electro hydraulic circuits, Mechanical hydraulic servo systems.
UNIT IV PNEUMATIC AND ELECTRO PNEUMATIC SYSTEMS
Properties of air - Perfect Gas Laws - Compressor - Filters, Regulator, Lubricator, Muffler, Air control Valves, Quick Exhaust Valves, Pneumatic actuators, Design of Pneumatic circuit - Cascade method - Electro Pneumatic System - Elements - Ladder diagram - Problems, Introduction to fluidics and pneumatic logic circuits.
UNIT V TROUBLE SHOOTING AND APPLICATIONS
Installation, Selection, Maintenance, Trouble Shooting and Remedies in Hydraulic and Pneumatic systems, Design of hydraulic circuits for Drilling, Planning, Shaping, Surface grinding, Press and Forklift applications. Design of Pneumatic circuits for Pick and Place applications and tool handling in CNC Machine tools - Low cost Automation - Hydraulic and Pneumatic power packs.