Automobile Engineering in ME
In order to implement gear changes in the gear unit of an automatic transmission, a ___________ is used.

Hydraulic multi plate clutch
Planetary gear
Synchronizer
Magnetic clutch

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Automobile Engineering in ME
In a ventilated disc brake

Disc contains radial vanes between its rubbing surfaces for optimum cooling performance
Disc contains many small holes for optimum cooling performance
Caliper is covered with cooling fins
A duct directs air towards the caliper for cooling while the vehicle is moving

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

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Automobile Engineering in ME
The condition that causes vapour locking in a brake system is

Keeping the vehicle without use for an extended period
Overheating of the fluid due to frequent brake application
Overcooling of the brakes during high speed driving
An excessively high engine speed on a downhill road

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