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- Draw P-V and T-s diagram showing the 4 points of different cycle for (a) spark ignition with explanation (b) compression ignition (c) dual combustion Explain the process from point to pointEngine knocking is defined as self-ignition of unburnt mixture other than the spark plugpoint. Explain the engine structural parameters’ effects on engine knocking.Consider the following statements relevant to the ignition system of SI engine: 1. Too small a dwell angle will lead to the burning of condenser and contact points. 2. Too small a dwell angle will result in misfiring. 3. Too large a dwell angle will result in burning of condenser and contact points. 4. Too large a dwell will result in mistiring. Which of these statements are correct?
- Name the engine operating conditions thatmost affect ignition timing requirements.Describe with the aid of diagrams the operational sequence of four stroke spark ignition and four stroke compression ignition engines note:Use whatever laws or graphics you need to illustrate the answerA nine cylinder, four-stroke cycle, radial SI engine operates at 900 RPM. Calculate: (a) How often ignition occurs, in degrees of engine rotation. (b) How many power strokes per revolution. (c) How many power strokes per second.
- Describe with the aid of diagrams the operational sequence of four stroke spark ignition and four stroke compression ignition enginesDescribe the operation of a vertical, four-stroke normally aspirated spark-ignition (SI) automobile engine.Explain the working of two-stroke, gasoline-driven internal combustion engine?
- Title True or False? A spark plug with two ground electrodes will provide two separate sparks when fired.. Description True or False? A spark plug with two ground electrodes will provide two separate sparks when fired. Why is high voltage needed to establish a spark across the gap of a spark plug? List the advantages of having one ignition coil per cylinder. Which of the following is a function of all ignition systems? a. To generate sufficient voltage to force a spark across the spark plug gap b. To time the arrival of the spark to coincide with the movement of the engine’s pistons c. To vary the spark arrival time based on varying operating conditions d. All of the aboveExplain the influence of engine speed upon the ignition delay.The following statement is made about an ignition system: tech a says that the greater the speed of the magnets rotating past a the ignition coil, the greater the voltage will be induced into the ignition coil. Tech b says that the primary windings produce a higher voltage than the secondary winding. Who is correct?