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Emc 0108 Autoelectronics 1 Question Paper

Emc 0108 Autoelectronics 1

Course:Certificate In Automotive Engineering

Institution: Meru University Of Science And Technology question papers

Exam Year:2012

QUESTION ONE – (30 MARKS)
(a) State five requirements that fuel for petrol engines should meet. (5 Marks) (b) State three functions of a Carburetor. (3 Marks) (c) Using a well labeled diagram explain the operation of a simple Carburetor. (5 Marks) (d) State three methods used to correct a simple Carburetor. (3 Marks) (e) Explain the forms: Cetane number flash point and lubricity in relation to diesel fuel. (4 Marks) (f) Describe two types of combustion chamber designs used in diesel engines. (4 Marks) (g) State three types of governors used in diesel injection systems. (3 Marks) (h) Explain three benefits of turbo charging a diesel engine. (3 Marks)
QUESTION TWO – (15 MARKS)
(a) Using a well labeled sketch explain the operation of a pneumatic governor used in diesel injection systems. (6 Marks) (b) Using a well labeled diagram explain the need for operation of a idling system in a Carburetor. (6 Marks) (c) xlain the meanin of the form ‘eteriation’ in relation to sark ignition engines. (3 Marks)
QUESTION THREE – (15 MARKS)
(a) State three disadvantages of super charging. (3 Marks) (b) Describe three methods that can be used to increase the power output of an engine. (6 Marks)
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(c) Using a diagram explain the operation of the acceleration system of a Carburetor. (6 Marks)
QUESTION FOUR – (15 MARKS)
(a) Using sketches describe the two common layouts of diesel injection systems. (6 Marks) (b) Using a well labeled diagram explain how fuel is metered in an inline fuel injection pump. (6 Marks) (c) Discss the meanin of the forms ‘hasin’ an caliration in relation to iesel injection pumps. (3 Marks)

Emc 0108 Autoelectronics 1 Question Paper

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