Monthly Archives: April 2016


Types of roof & bridge truss 817

there are many assortment of bridges in the construction industry. They include roof and bridge trusses and their structural integrity depend on their design and construction like shown below :- ROOF TRUSSES Attic truss – this truss is designed with a spaced allocation to fit an attic. Belgian truss – […]


seals & pipelines 454

seals and pipelines are used in transportation of hydraulic fluids in a plane. HYDRAULIC FLUIDS IN A PLANE they include:- DEF STAN 91 – 48 – mineral fluid for high pressures and low temperatures. it is coloured red. SKYDROL – it is a phosphate ester based synthetic hydraulic fluid . […]


fire detection in airplanes 776

  An airplane just like any other man made object can be prone to fire. It is therefore deemed necessary to fire proof or eliminate causes of fire in the airplane. Designated fire zones – engines, auxiliary power unit, wheel wells, cargo compartments, lavatories, bleed air ducts & electronic bays. […]


fault location in p.c & its symptoms 920

There are various ways to know if a computer is faulty either by message or computer behavior symptoms as shown below :-   faulty hard disk symptoms message is displayed ” primary master hd fail” when you press f1 you get message telling you “disk boot failure or “insert system […]


Types of cement 785

There are many types of cement different in chemical composition and with different properties.   Ordinary portland cement –  This is the most commonly used cement. its properties render it useful in many building sites although it cannot be used where there is exposure to sulphates or ground water. Rapid […]


Foundation 283

foundation is a base at which a building rests and its use is to transfer the weight of a building to a suitable sub-soil. soil in building code is classified as:- clay silt gravel rock black cotton soil types of foundation strip foundation – has a trench equal to the […]


carburetor & injection 439

carburetor is a mechanical device that mixes air and fuel into correct ratios. The detailed picture of a cross section view is shown below. Carburetor   Air/fuel mixture is drawn from the carburetor by vacuum created by the movement of the piston in the four stroke cycle. This tends to […]