Automobile Engineering in ME
The engine oil viscosity is defined by ___________ ratings.

American petroleum institute (API)
Gross vehicle weight (GVW)
Society of automotive engineers (SAE)
Automatic transmission fluid (ATF)

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Automobile Engineering in ME
In which of the following conditions, the idle CO percentage should be measured with the vehicle?

Headlights and other electrical devices are switched on
Headlights and other electrical devices are switched off
Headlights are switched on
Headlights and other lights are switched off

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