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IC Engine Practice Test: Two Stroke Engines
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Avg score: 89% Most missed: “Crankcase explosion in I.C. engine usually occurs as __________”
Two Stroke Engines topics include: Terminologies and definations, scavenging process and pumps, two stroke engine and its advantages, si and ci engines, advantages of four stroke engines. A two-stroke engine is a type of internal combustion engine that completes a power cycle with two piston strokes during one power cycle.  Two-stroke engines are used in many industries, including garden equipment and motorcycles. They are preferred when mechanical simplicity, low weight, and high power-to-weight ratio are the design priorities.  Here are some steps in the working process of a two-stroke... Show more
IC Engine Practice Test: Two Stroke Engines
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25 Questions

1. In a four stroke cycle diesel engine, the inlet valve __________
2. A diesel engine, during suction stroke draws __________
3. In case of two stroke engines because of scavenging, burnt gases remain in the clearance space as in case of four stroke engines.
4. What is the function of a fuel pump in a petrol pump?
5. At light loads, the running of the engine is not very smooth because of the __________ dilution of charge.
6. Two stroke engines are liable to cause a ____________ consumption of lubricating oil.
7. Scavenging systems, based on charge flow are classifies as __________
8. A two stroke cycle engine occupies larger floor area than a four stroke cycle engine.
9. Theoretically, a four stroke engine should develop ____________ power as that of a two stroke cycle engine.
10. Piston rings are usually made of __________
11. Piston type pump is used for low speed and single or two cylinder engines.
12. ____________ forms the first link in transmitting the gas forces to the output shaft.
13. Scavenging process consists of __________
14. As there is a working stroke in every revolution, a more uniform turning moment is obtained on the crankshaft and therefore, a __________ flywheel is required.
15. Scavenging process is the replacement of combustion products in the cylinder from the previous power stroke with fresh air charge to be burned in the next cycle.
16. Number of working strokes per min. for a four stroke cycle engine are ____________ the speed of the engine in r.p.m.
17. In a four stroke cycle the minimum temperature inside the engine cylinder occurs at the __________
18. The process of clearing the cylinder after the expansion stroke is called scavenging process.
19. Inadequate scavenging leads to contamination of lubricating oil to a greater extent which reduces the lubricating qualities and eventually results in increased wear of piston and cylinder liners.
20. Scavenging period is the time period taken for crank angle.
21. The top piston ring nearer to the piston crown is known as __________
22. Crankcase scavenging arrangement is very economical and inefficient in operation.
23. Which of the following engines will have a heavier flywheel than the remaining ones?
24. A two stroke engine gives _____________ mechanical efficiency than a four stroke cycle engine.
25. With heavy loads, two stroke engines get heated due to excessive heat produced.