The process of construction consists both assembling of infrastructure and building. Normally the construction equipments are used by two types of heavy equipments like mobile lighter equipment and portable equipment. Other type is engineering equipment. These types of equipments are only used for small backhoe in the rear combination of tractor. The engineering equipment is mostly used for two types of sites such as urban engineering and small construction sites.

The crawler is a powerful construction machine. It is attached for blade. This method of machines is called by bulldozer. The bulldozer machines are generally used in heavy engineering project. At the same time, the tractor machines are designed by dozer of blade. The next type of vehicles is combat engineering vehicles. It is used for both field like transporting sappers and battlefield. The combat vehicles are sometimes called for armoured vehicles. The final construction machine is crane.  There are three types of materials included in the crane such as lifting materials, pulleys and cables for lowering.

The simplest method in the hydroponic systems is the water culture system. The flow method of hydroponic systems is also known as flood and drain method. The hydroponic systems have seven types and there are deep water culture, water culture, Ebb and flow, drip system, Aeroponic, Nutrient film technique and wick system. It is the latest technology for growing plants with the use of water and without the use of soil in these days.

The hydroponic gardening is the new trend for gardeners. It is a great way for growing plants without soil. The soil is used to grow in that medium with nutrient solution. But, nowadays the plants are growing hydroponically and it is able to grow by drain sub irrigation or passive sub irrigation. The nutrient film technique is the best way of solution culture in hydroponics. The drip system is the common method for hydroponics. This system is commonly used for commercial use like long term crops such as peppers and tomatoes. It is very simple way. The wick hydroponics systems are easy to create.