what are the cat eye colors in driving

Motorway reflective stud placement

Motorway or dual carriageway reflective studs (or cat's eyes as they are also referred to) are designed to be most effective in poor light conditions by reflecting light back to the driver to signify which part of the motorway they are driving on, or where they might need to exit.

The colour of the studs always has the same placement on motorways and dual carriageways.

Questions relating to reflective road studs are often asked during the theory test.

Cat's eyes colours

Red motorway studs are placed along the hard shoulder of both motorways and dual carriageways. They can also be seen on the left of certain A or busy B roads.

Amber motorway studs are placed to the far right, running alongside the central reservation.

Green motorway studs indicate where a junction either joins or leaves a motorway, often called a motorway slip road.

White motorway studs are placed between the lanes of dual carriageways or motorways.

Blue motorway studs can occasionally be seen and are for the use of the emergency services.

what is mean by stationary vehicle in car driving

1)  Not moving; standing still
2 )   Not able to be moved
3 )   Showing no change

what is the highest gear in car driving

Simple - - - Low 1st then 2nd - 3rd - 4th - 5th high. ( some modern cars even have a 6th gear).

However in snow - as there is less torque/traction in a 'higher gear. It would be better to try to move away in a higher gear - 2nd or 3rd - which should lessen the chance of the driving wheels spinning without 'grip'. (in the real world, it would possibly mean 'slipping the clutch' (Not letting the clutch fully engage until the car is rolling).

Note - it would be almost impossible to move a car off in a gear higher
than 3rd.


A low gear allows the engine to turn faster for a given wheel speed, producing more power, and multiplies the torque available at the wheel, so producing a greater tractive force between the wheel and the road. This means that the vehicle can either accelerate faster or pull a greater load than it could in a higher gear.

A high gear allows the engine to turn slower for a given wheel speed, reducing engine noise and fuel consumption (and allowing higher overall speeds within the engine's limited speed range), but with a corresponding reduction in tractive force between the wheel and the road. So the vehicle is quieter and more fuel-efficient, but cannot accelerate as quickly or pull as heavy a load as it could in a lower gear.