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Internal Combustion Engine: SI (Spark Ignition) Engine
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Internal Combustion Engine: SI (Spark Ignition) Engine
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25 Questions

1. Which of the following is not the part of the injector assembly?
2. The battery is charged by a __________ driven by the engine.
3. A blast resistor is provided in parallel with the primary winding to regulate the primary current.
4. Regeneration does not consists of combusting the particulates in the excess oxygen contained in the exhaust of the lean operating CI engine.
5. The following are the compensating devices used
6. Fuel injector is used for
7. The following is (are) the part(s) of Electronic Control Unit (ECU)
8. In pre-chamber and swirl type of combustion system ______________ is used.
9. In _____________ injection system only one pump is sufficient for multi-cylinder engine.
10. Fuel is injected into the cylinder at the end of ______________ stroke.
11. Advantage of air injection system is
12. Advantage of fuel injection in SI engine is
13. Which of the following is the port fuel – injection system?
14. The flame propagation velocities range from
15. A six-cylinder, four-stroke diesel engine develops a power of 200 kW at 2000 revolution per minute. The brake specific fuel consumption is 0.3 kg / kW – h. What is the time for injection if the injection takes place over 20° crank angle?
16. In an air injection system, __________ is forced into the cylinder by means of compressed air.
17. Increase of pressure increases the self ignition temperature and the induction period.
18. What is the spray cone angle in the Pintle nozzle?
19. Platinum and palladium are two main catalyst materials used for converters on CI engines.
20. Platinum and palladium catalyst promotes the removal of _____________ of the gaseous CO in the exhaust.
21. The methods used on fuel injection are :
22. What is the range of pressure is achieved in the injection pump?
23. NOx is reduced in a CI engine by the use of EGR.
24. The fuel consumption is least in
25. The following method provides the required air-fuel ratios in the economic and power range

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