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

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Automobile Engineering in ME
Wheel base of a vehicle is the

Distance between the centres of the front tyres
Distance between the centres of the front and rear wheels
Distance between the centres of the rear tyres
Extreme length of the vehicle

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Automobile Engineering in ME
The fuel pump of a programmed fuel injection (PFI) system operate for two seconds when the ignition is turned to the start position to

Warm up and lubricate the pump
Supplies a large amount of fuel and thereby creates a choke effect
Enable the pump's fault diagnosis function to operate
Pressurise the fuel system before the engine is started

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