In which of the following conditions, the idle CO percentage should b – McqOptions

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1.	In which of the following conditions, the idle CO percentage should be measured with the vehicle?
A.	Headlights and other electrical devices are switched off
B.	Headlights and other electrical devices are switched on
C.	Headlights and other lights are switched off
D.	Headlights are switched on
Answer» B. Headlights and other electrical devices are switched on

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