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For which of the following the flame ionization detector (FID) is used to measure?

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in Automobile Engineering by (80.5k points)
For which of the following the flame ionization detector (FID) is used to measure?

(a) CO

(b) HC

(c) CO2

(d) NOx

The question was asked in a national level competition.

My question comes from Measurements and Testing topic in chapter Automotive Electronics, Engine Performance Parameter & Testing of Automobile Engines of Automobile Engineering

1 Answer

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Best answer
Right option is (b) HC

To elaborate: Flame ionization detector (FID) is used to measure the hydrocarbon concentration. Ionization is the characteristic of HC compound.

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