Mention the major area of application of hydraulic system.
[3 marks]Differentiate between a seat type and spool type DC valve. Which of these two types of valves are widely used? Why?
[4 marks]Adouble acting hydraulic cylinder is to be operated from two different sources Aand Bsuch that its forward motion can be actuated from either of the two locations. Draw and explain a circuit diagram.
[7 marks]What is a check valve? Show various uses of a check valve in the hydraulic circuit.
[3 marks]Write a note on Biodegradable hydraulic fluids.
[4 marks]What is FRL unit? Explain any one component of FRL unit with schematic diagram
[7 marks]Sketch the typical fluid reservoir and name the parts, giving their function
[7 marks]Draw the general layout of hydraulic system. Explain the function of each component.
[3 marks]With neat sketch explain construction and working of push button operated spring return 3/2 DCV.
[4 marks]Distinguish between Hydraulic system & Pneumatic system.
[7 marks]Classify and explain hydraulic cylinders according to construction.
[3 marks]Define Control Valve. List the different types of control valves.
[4 marks]Explain One Industrial application of hydraulic circuit with neat sketch.
[7 marks]List out various accessories of reservoirs.
[3 marks]Write Short notes on: 1. Ram type actuators 2. Telescopic type actuators
[4 marks]Sketch & explain Counter Balance valve construction & it’s working.
[7 marks]Give difference between throttle valve and flow control valve. Page 1 of
[2 marks]What are the causes and effects of heat generation in hydraulic system?
[4 marks]Classify the pumps used for the hydraulic system and explain external and internal gear pump with neat sketches.
[7 marks]Explain different types of fire resistance hydraulic fluid.
[3 marks]With neat sketch explain working and construction of balanced vane pump.
[4 marks]Draw and explain Meter-in, Meter out and By-pass speed control circuits. Also differentiate among them.
[7 marks]What is meant by positive displacement pump? Classify the same.
[3 marks]What do you mean Automation? Give classification of Automation
[4 marks]What is the purpose of filter in hydraulic system? Where it is located in hydraulic circuit? What is the significance of location of filter? Page 2 of
[2 marks]