Trucks are six-wheeled huge motor vehicle which is designed for distance haulage and performing many specialized tasks such as fire-fighting, truck racing and trade –INS. Trucks are designed in unique in order to transport cargo form place to another distanced place. In many countries where there is no railway system, a truck offers the only way of transporting goods. Trucks are both advantageous and disadvantageous as they emit harmful gaseous substances that pollute the environment and causing ill health. Modern trucks are powered by either gasoline or diesel engines and perhaps these trucks greatly vary in size, shape, power and configuration. Trucks constructed commonly share unique characteristics. A cab is been enclosed place in a truck where the driver is seated to make him rest while he is not driving the vehicle. |