Chapter 8 PROBLEMS, THEIR CAUSES AND REMEDIES OF ENGINE AND COMBUSTION CHAMBER MCQs

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1. Turbulence is a very rapid movement of gases:





2. The air and fuel mixture is squashed in the ______ area:





3. The hemispherical combustion chamber is also called:





4. The wedge combustion chamber restricts the flow of _______ to a certain extent:





5. The open combustion chamber has the combustion chamber located directly inside the:





6. Shallow depth combustion chambers are mostly used in the ____ engines:





7. The swirl can be produced by masking the valve for nearly _____ of the circumference:





8. Indirect chamber having part:





9. During the compression stroke, _____ of the air will be transferred to this swirl chamber:





10. The energy will be released in the main combustion chamber:





11. The second portion of air cell chamber is called:





12. Delay period is the time from ________ of injection to the attainment of chemical reaction conditions:





13. Both temperature and pressure increase the rate of:





14. The period of rapid combustion is also called the:





15. Chemical decarbonization involves running a chemical compound along with the fuel:





16. The motion of air in the combustion chamber is called:





17. Turbulence accelerates __________ by intimate mixing of the fuel and oxygen in the combustion chamber:





18. Squish is the clearance between the piston and the ______ inside the cylinder:





19. Quenching is the mixing of gases by pressing them into a:





20. The mixture in the quench area is ______ out at high speed as the piston moves up:





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