Describe, with the aid of a sketch, the operation of a diesel engine hydraulic oil start system, labelling the MAIN components, including all interlocks.(10)
MDE Unit 14 Q1 MDE Unit 14 Q1 Quiz
(a) Explain, with the aid of a diagram, the operation of a solenoid operated, battery powered electric starting system for an internal combustion engine.(6)
(b) Explain the term pre-engaged starter.(4)
MDE Unit 14 Q2 MDE Unit 14 Q2 Quiz
With reference to the operation of an air starting system of a large medium speed marine diesel engine fitted with individual air starting valves:
(a) state the checks to be carried out if the engine will not start when initiating the start sequence;(6)
(b) list FOUR safety devices fitted to the air start system.(4)
MDE Unit 14 Q3 MDE Unit 14 Q3 Quiz
(a) List FOUR safety interlocks that may be fitted to a direct air start medium speed diesel engine to prevent inadvertent starting during maintenance.(4)
(b) Explain, with the aid of a diagram, the opening period of an air start valve on a four stroke diesel engine in relation to the crank angle, inlet and exhaust valves.(6)
MDE Unit 14 Q4 MDE Unit 14 Q4 Quiz
Describe the checks and maintenance required for a main engine starting system that uses an air motor.(10)