Question 15Motor Plants - Assistant Engineer
70% to passAn indicator card or pressure-volume diagram, shows graphically the_______________.
Acompression ratio of the engine
Bvolume of the engine
Crelationships between pressure and temperature during one stroke of the engine
Drelationships between pressure and volume during one cycle of the engine
AI Explanation
The correct answer is D) relationships between pressure and volume during one cycle of the engine. An indicator card or pressure-volume diagram graphically depicts the relationship between pressure and volume within the engine cylinder during one complete cycle (intake, compression, power, and exhaust strokes). This diagram allows engineers to analyze the engine's performance and efficiency by visualizing the changes in pressure and volume throughout the engine cycle. The other options are incorrect because they do not accurately describe the primary purpose of an indicator card, which is to show the pressure-volume relationship, not the compression ratio, volume, or pressure-temperature relationship.
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