Which of the following relationships exist...

Question 1 / 270705eccefa1bacbc34ba4d47360

Question 1 of 270705eccefa1bacbc34ba4d47360

Which of the following relationships exist between the temperature developed in the combustion space, and the compression ratio of the engine?

Back

Question 1 of 27070

Which of the following relationships exist between the temperature developed in the combustion space, and the compression ratio of the engine?

🔍 Key Concepts

• Compression ratio in a diesel or gasoline engine and how it affects air temperature during compression • The basic gas law relationship between pressure, temperature, and volume (P-V-T) for a gas being compressed • What happens to the air in a cylinder when the piston moves up on the compression stroke

💭 Think About

• When you compress a gas into a smaller volume, what generally happens to its temperature if no heat is lost to the surroundings? • In an internal combustion engine, why is a certain minimum temperature needed at the end of compression, especially in a diesel engine? • Think about cause and effect: does the compression ratio depend on the temperature, or does the temperature result from the compression ratio?

✅ Before You Answer

• Make sure you know that compression ratio is defined as the ratio of cylinder volume at bottom dead center to volume at top dead center. • Recall that for a gas, if volume goes down quickly and significantly, temperature tends to go in a specific direction (up or down?). • Eliminate any choice where the cause–effect direction between temperature and compression ratio is reversed.

Question 1 of 27070

Which of the following relationships exist between the temperature developed in the combustion space, and the compression ratio of the engine?

Higher compression ratios create higher temperature.

Higher temperatures create higher compression ratios.

Lower temperatures create higher compression ratios.

Higher compression ratios create lower temperatures.

Question 1 / 270705eccefa1bacbc34ba4d47360

Question 1 of 270705eccefa1bacbc34ba4d47360

Which of the following relationships exist between the temperature developed in the combustion space, and the compression ratio of the engine?

Back

Question 1 of 27070

Which of the following relationships exist between the temperature developed in the combustion space, and the compression ratio of the engine?