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Classes Of Fire   Fire results from the chemical reaction that occurs when oxygen combines rapidly with fuel to produce heat, (and light). Three essentials of this process form the ‘Fire Triangle’. A fire requires three components to burn, and the removal of any one of these components will extinguish the fire. The requirements of the three components, forming the ‘Fire Triangle’, are: Fuel: a combustible material, which may be a solid, liquid or gas Oxygen: in sufficient volume to support the process of combustion Heat: of sufficient intensity to raise the temperature of the fuel to its ignition (or kindling) point. Classes of Fire There are a number of types of portable fire extinguishers. Each type of extinguisher may be rated for one or more classes of fire. In some cases, particular extinguishers are not only considered ineffective against certain classes of fire, they can be dangerous if used in those circumstances. The classes of fire in  European system are: Class A: O...

EASA PART 66 MODULE 7 MAINTENANCE PRACTICES Material Safety Data Sheets (MSDS) A material safety data sheet (MSDS) is a document provided by the material manufacturer or subsequent material processor that contains information related to the material hazard and includes safe handling and disposal procedures. The format of these sheets must be consistent with the requirements of the Hazard Communications Standard. MSDSs should be provided by the manufacturer for each hazardous material supplied by them. The Material Safety Data Sheet is the primary source of information about hazardous chemicals used in your work site. Your employer is required to have an MSDS for every hazardous chemical used or stored at your work site, and to make it available for review on request. Let's attempt this quiz and see how much do we know about MSDS. Loading…    

  EASA MODULE 7A Sub Module 7.3 TOOLS TWIST DRILL ( MCQs): Loading…  

  EASA MODULE 7A Sub Module 7.3 TOOLS Files   Files are cutting tools for removing metal from a surface and are made of high-carbon steel. The blade is hardened, whilst the tang (to which, a handle must always be attached, for safety reasons, before the file is used), is left in a softer, tougher condition and is, therefore, less brittle. Hand files are classified by their:  Length  Shape  Cross-Section  Cut  Grade The length of a file is measured from the shoulder to the tip of the blade. Files are available, for special work, in lengths from 75 mm (3 in) to 350 mm (14 in). The most common sizes are 150 mm (6 in), 200 mm (8 in) and 250 mm (10 in). Files are available in a variety of shapes (refer to Fig. 3.9), and the most common shapes are those which are:  Tapered  Parallel  Bellied       Shapes of Files The various shapes and the cross-sections of files allow them to be used on a wide range of tasks. The standard file ...

  EASA MODULE 7A Sub Module 7.3 TOOLS FILES (MCQs) : Loading…  

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EASA MODULE 7 SUB MODULE 7.5 ENGINEERING DRAWINGS Loading…  

EASA MODULE 7 : MAINTENACE PRACTICES SUB MODULE: 7.16 AIRCRAFT WEIGHT AND BALANCE When an aircraft is designed, limits are put on its maximum weight, and restrictions are set up regarding the range within which the center of this weight is allowed to vary. A part of the certification procedure for an airplane is to determine that its weight and balance are within the allowable limits, and this information is furnished with the aircraft as part of its operations manual. Lets check your knowledge about the aircraft weight and balance. Loading… Please provide your feed back in the comment section below. Thanks and Regards, The Hash Academy Team

Soldering: Soldering is a process of joining two metals without melting them. Soldering differs from welding in that it is done at considerably lower temperatures so that the parent metals do not melt and fuse together. Instead, a fusible and, usually, non-ferrous alloy (with a lower melting point) is applied between the heated metals of the joint, such that the fusible alloy forms a metallic bond with the parent metals and, on cooling, creates a solid joint. Tinning: Before an iron can be used for soldering, the contact surfaces must be given a coating of tin or solder this process is called “tinning” the iron. Solders: Ordinary soft solder is a fusible alloy consisting chiefly of tin and lead. It is used to join two or more metals at temperatures below their melting point. The standard grades of soft solder are as follows. 1. Tinman's 2. Electrician's 3. Lead Silver The two basic methods of soldering are: 1. Hard Soldering: done at temperatures in excess of 500°C . 2. Soft So...