Which statement correctly matches the definition pairing?

Which statement correctly matches the definition pairing?

• A. Flash point — highest temperature at which vapors ignite
• B. Conduction — energy transfer by radiation
• C. Fire point — temperature at which vapors ignite and continue burning
• D. Boiling point — minimum temperature for vapor formation

Answer: (C)

This question tests how well you know common flammability temperatures and what they mean in practice. The fire point is the temperature at which vapors ignite and continue burning after ignition, so the statement describing that exact behavior is the correct pairing. Flash point is actually the lowest temperature at which vapors can form an ignitable mixture and flash when exposed to an ignition source, not the temperature where burning sustains itself. Conduction is energy transfer by contact, not by radiation, so linking it to radiation is inaccurate. Boiling point is the temperature at which a liquid boils because its vapor pressure equals the surrounding pressure, not the minimum temperature needed for vapor formation in general.

This question tests how well you know common flammability temperatures and what they mean in practice. The fire point is the temperature at which vapors ignite and continue burning after ignition, so the statement describing that exact behavior is the correct pairing. Flash point is actually the lowest temperature at which vapors can form an ignitable mixture and flash when exposed to an ignition source, not the temperature where burning sustains itself. Conduction is energy transfer by contact, not by radiation, so linking it to radiation is inaccurate. Boiling point is the temperature at which a liquid boils because its vapor pressure equals the surrounding pressure, not the minimum temperature needed for vapor formation in general.