The Engineers Crib

Pumps are devices that are used to lift fluid. There are two types of pump Positive displacement pumps Centrifugal pumps The positive displacement pumps consists of a large cavity for suction and a smaller cavity for the discharge. The suction valve expands as the fluid flows through, then forces it through the discharge valve as a result of the pressure created. The positive displacement pumps are classified as follows Rotary pump Reciprocating pump Centrifugal pumps The centrifugal pump uses the impeller to convert and direct the flow of fluid through the discharge valve. They are classified as a Single stage Multi stage centrifugal pump Pumps are used to transfer fluid from a lower level to a higher level and also Pumps are used to increase flow rate.

The construction procedures of an executive office chair are stated below Selection of materials Engineering drawing/sketches Measuring and marking out dimension Cutting operations Drilling operations Formation of shapes Joining operations Upholstery Surface finishing SELECTION OF WORKING MATERIALS This involves the consideration of the best materials for the construction of the chair. Materials such as galvanized mild steel pipe, mild steel rod, mild steel plate,  leathers, foam, rubber hose, electrode, paint, screw nut,  bolt and adhesive. ENGINEERING DRAWING/SKETCHES Engineering drawing is the first thing to do when constructing the executive office chair, it gives the graphical conception of the chair. It helps to remain focus on the ideal chair to be constructed. MEASURING AND MARKING OUT This involves the use of vernier calliper and measuring tape to take a precise dimension of the work piece. Tools like scriber and talc are also used to mark out th...

The 20th century saw an increasing use of technology in the chair construction with such things as all-metal folding chairs, metal-legged chairs, the slumber chair, moulded plastic chair and ergonomic chairs. Because of its used for various purposes, there are three (3) factors to consider when choosing an executive chair. FORMS Office chairs comes in several styles and forms to suit almost every need. The executive office chair which is more expensive than a basic chair features a more luxurious design and materials,its unique adjustable options for the whole body allows for more tailored comfort. Mostly its constructed with thickened padding for higher comfortability. There's also task office chair which features a frame made from steel or plastic and typically includes arm rests and back support. The seat and back rest are upholstered with fabric to enhance comfort. The other forms are the swivel office chair which features controls that adjusts the height and the ergo...

THE FUEL SYSTEM The fuel system in an automobile,  is the components needed to transport fuel into and out of the engine. The major components of the fuel system of a petrol engine are Fuel tank Connecting lines Fuel pump Fuel filter Air filter Fuel metering and atomization Carburetor FUEL TANK    The fuel tank is made of sheet metals with welded seams or of a reinforced plastic material. It serves as the petrol reservoir,  A filter rock cap allows fuels to be added. CONNECTING LINE    Its a Small diameter tubing and synthetic rubber hoses connecting the fuel tank to the fuel pump. The synthetic rubber hose are used where vibration might crack or break metal line. FUEL PUMP     The fuel metering and atomization system is located higher in the automobile than the fuel tank. An electrical or mechanical pump is used to draw the fuel from the tank and deliver to the carburetor or fuel injection system. Fuel pump fig 1.1 ...

Mechanical engineering is a branch of engineering that uses creative abilities and knowledge to design, analyse, manufacture and maintain mechanical system through the application of physics, material science and engineering principles. Mechanical engineering is known as the structure of engineering because of its ability to understand, predict and calculate the stability, rigidity and the strength(plasticity, elasticity,  toughness, hardness) of materials used in construction of a structure. Branches of Mechanical Engineering This field of engineering consist of various branches due to it complex form. Some of the branches are Vehicle engineering: This branch of engineering consist of automobile engineering,  aerospace engineering and marine engineering. Manufacturing engineering: it focuses on the application of engineering procedures in manufacturing processes and production method to improve quality of the product. The procedures consists of robotics, computer ...