Cooperative Personnel Services Firefighter (CPS) Practice Exam 2025 – The All-in-One Guide to Master Your Firefighter Exam Success!

Question: 1 / 400

Which factor does not affect the combustion of a material?

Temperature

Presence of oxygen

Type of fuel

Color of fuel

The combustion of a material is influenced by several key factors, including temperature, the presence of oxygen, and the type of fuel involved in the reaction. Temperature plays a crucial role because it determines the energy level of the particles. Higher temperatures can increase the reaction rate and lead to combustion more readily. The presence of oxygen is vital as combustion is an oxidation reaction, requiring an oxidizer to sustain the process. The type of fuel matters since different fuels burn at different rates and produce varying amounts of heat and byproducts.

The color of the fuel does not impact combustion in a significant way. While color can provide information related to the chemical structure or the presence of certain compounds, it does not affect the fundamental chemical processes that occur during combustion. Therefore, color is not a factor that influences combustion directly.

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