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/A mechanic has an engine from a 1950 model car which works on the basiS of Otto cycle. The engine displaces 1.8 liters, has a compression ratio of 10.2:1 and has six cylinders. The piston in the original engine are 120 mm in diameter. The mechanic bores the cylinder and replaces the piston with new pistons that are 2 mm larger in diameter than the originals. Keeping all other factors same. (a) What will be the percentage change in power output? (b) By what percentage will the engine efficiency change?

/A mechanic has an engine from a 1950 model car which works on the basiS of Otto cycle. The engine displaces 1.8 liters, has a compression ratio of 10.2:1 and has six cylinders. The piston in the original engine are 120 mm in diameter. The mechanic bores the cylinder and replaces the piston with new pistons that are 2 mm larger in diameter than the originals. Keeping all other factors same. (a) What will be the percentage change in power output? (b) By what percentage will the engine efficiency change?

Elements Of Electromagnetics
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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01/ A mechanic has an engine from a 1950 model car which works on the basis of Otto cycle. The engine displaces 1.8 liters, has a compression ratio of 10.2:1 and has six cylinders. The piston in the original engine are 120 mm in diameter. The mechanic bores the cylinder and replaces the piston with new pistons that are 2 mm larger in diameter than the originals. Keeping all other factors same. (a) What will be the percentage change in power output? (b) By what percentage will the engine efficiency change?
Transcribed Image Text:01/ A mechanic has an engine from a 1950 model car which works on the basis of Otto cycle. The engine displaces 1.8 liters, has a compression ratio of 10.2:1 and has six cylinders. The piston in the original engine are 120 mm in diameter. The mechanic bores the cylinder and replaces the piston with new pistons that are 2 mm larger in diameter than the originals. Keeping all other factors same. (a) What will be the percentage change in power output? (b) By what percentage will the engine efficiency change?
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