Yes, as the odometer is placed in a conspicuous place. Also, it is required by many auto dealerships to check how much mileage is in a car, to ensure that it still functions.
The first skill to being a mechanic is to know cars. basic skills are changing a tire, changing the oil, then you can move on to tune ups, reading check engine codes.
Drive slower, and the speedometer decreases. If you are asking how to (illegally) decrease the odometer's kilometer reading, then shame on you.
It is easiest to check for odometer tampering if the odometer is not digital. Look at the numbers and see if they all line up at the top and bottom. Unless a number is about to change the line of numbers should be straight and they should not jiggle when tapped. Get a free CarFax Odometer Report and look for discrepancies that might appear on mileage, look at the cars title and service records and compare mileage, and see if the cars wear and tear matches with the mileage.
an auto mechanic
A person who repairs cars is called a "Mechanic".
The odometer
an automotive mechanic
That depends if all the wheels are on the ground. Some cars have to have the drive shaft disconnected so it can be towed. Then it doesn't click up mileage.
Sure. Get a second opinion or get someone who is good with cars to check it for you.
Auto manufacturers go to a lot of trouble to make sure people don't try to fraudulently roll back odometer miles to make a car look less "worn out" than it really is. There is no easy way to roll back an odometer other than to just replace it.
Odometer reading is a vital tool in car assessment, it represents safety, real age of the vehicle, and many other general factors. The act of altering the number constitutes forgery and fraud, due to it's apparent nature. For example, if it would be legal to alter the odometer reading, then many people could buy brand new cars at their local dealerships, with reality being that those are used cars with thousands of miles on them, and used car owners will be more prone to be in car collisions, without having a clue of the real state of their car.
Three things happen: First, mechanically, the odometer will roll over to zero. This is not an unusual phenomenon--on most cars built through the 70s and early 80s, the odometer only went to 99,999. Most cars from the mid 80s on have an odometer that will go to 999,999--so it's less likely you'll exceed the mechanical capability of the odometer. Second, when you try to sell the car, you'll have to check a box on the title that says the odometer reading is inaccurate. Cars with an odometer discrepancy are usually less valuable, because a buyer may not readily determine if the car has gone 100,000 miles, 200,000 miles, or more. Third, if your mileage goes high enough the manufacturer may want to put a picture of your car in its advertising. Some companies have clubs for owners of high-mileage cars. The current world record holder for mileage is a 1976 Mercedes-Benz 240d that was used as a taxi in Greece, which logged 4.6 million kilometers.