IC Engines MCQ

IC Engines MCQ Questions

• 1. The ignition quality of petrol is expressed by -
• 2. The probability of knocking in diesel engines is increased by -
• 3. The maximum temperature in the I.C. engine cylinder is of the order of -
• 4. An engine indicator is used to determine the following
• 5. The pressure at the end of compression in the case of diesel engine is of the order of
• 6. It the temperature of intake air in IC engines is lowered, then its efficiency will
• 7. Which of the following medium is compressed in a Diesel engine cylinder?
• 8. A stoichiometric air-fuel ratio is
• 9. The compression ignition engines are governed by
• 10. The reason for supercharging in any engine is to
• 11. The process of breaking up or a liquid into fine droplets by spraying is called
• 12. In order to prevent knocking in spark ignition engines, the charge away from the spark plug should have
• 13. In loop scavenging, the top of the piston is
• 14. The knocking tendency in compression ignition engines for a given fuel will be
• 15. Polymerization is a chemical process in which molecules of a compound become
• 16. The ratio of the indicated thermal efficiency to the air standard efficiency is known as
• 17. Scavenging air in diesel engine means
• 18. Engine pistons are usually made of aluminium alloy because it
• 19. The air standard efficiency of an I.C. engine depends on (A) Fuel used
• 20. The thermal efficiency of a petrol engine is _________ as compared to diesel engine.