ANSWER ALL QUESTIONS
PART – A ( 10 x 2 = 20 marks )
1.Why Priming is required in a Centrifugal Pump?
2.Explain the term “BACK LASH” with respect to gear pump.
3.What do you understand by the term “Hunting Gear” of a steering system of a ship?
4.State four important properties of steering system hydraulic oil?
5.What is the purpose of “Sacrificial Anodes” in a heat exchanger?
6.State the materials used for i) TUBES, ii) End covers of a tubular type heat exchanger.
7.Name four important properties of a good fuel used for combustion in I.C. Engines?
8.What is the function of “Dam Ring” in ‘Oil Separators’.
9.Define a) ‘E’ Coliform, b) Arabic compound with respect to sewage plant.
10.Explain the function of “Pilot Burner” in an Incinerator.
PART-B ( 5 x 16 = 80 Marks )
11.a) Sketch and describe a positive displacement pump, which is fitted with an Air Vessel in the discharge side. (10 marks)
b) Explain the Principle of an “Ejector” (6 marks)
12.a)i)Explain with sketches the function of a “Telemotor and “Receiver” of an All Hydraulic steering system of a ship. (10 marks)
ii)Explain with sketch the function of the “Telemotor by Pass Valve in the above mentioned system. (6 marks)
OR
12.b)i)Explain the principle of an ALL Electric Steering system. (6 marks)
ii)Sketch and describe an ALL Electric steering system (10 marks)
Last edited by hemalathaijt; March 16th, 2012 at 11:28 AM.