(a) State FOUR conditions for the fresh water cooling system treatment program to be effective.(4)
(b) State the function of the inhibitor used in fresh water cooling treatment.(3)
(c) Explain the safety considerations needed when handling the inhibitors.(3)
MDE Unit 13 Q1 MDE Unit 13 Q1 Quiz
With reference to diesel engine cooling water:
(a) explain why the water requires treatment;(6)
(b) describe the type of treatment that should be used.(4)
MDE Unit 13 Q2 MDE Unit 13 Q2 Quiz
(a) Describe, with the aid of a sketch, a keel type cooling water system, labelling the MAIN components.(6)
(b) Explain the purpose of EACH of the following in the cooling system:
(i) header tanks;(3)
(ii) vent lines.(1)
MDE Unit 13 Q3 MDE Unit 13 Q3 Quiz
With reference to the main engine cooling water systems:
(a) explain the purpose of the header tank;(4)
(b) explain why both heaters and coolers may be fitted;(4)
(c) state, with reasons, the type of pumps used.(2)
MDE Unit 13 Q4 MDE Unit 13 Q4 Quiz
Sketch a typical diesel engine cooling water system, describing the purpose of EACH component.(10)
MDE Unit 13 Q5 MDE Unit 13 Q5 Quiz
With reference to diesel engine water coolers:
(a) describe how performance is measured;(5)
(b) describe the possible causes of the performance falling off.(5)