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  2. BTEC Extended Diploma - Wikipedia

    en.wikipedia.org/wiki/BTEC_Extended_Diploma

    The BTEC Level 3 Extended Diploma dates back to the 1930s as a full-time three-year course. After the Haselgrave Report, the Business Education Council (BEC) and Technician Education Council (TEC) took over the accrediting of this qualification (called the "Ordinary National Diploma") and others in the stable, such as the National Certificate, Higher National Certificate and Higher National ...

  3. Drill bit sizes - Wikipedia

    en.wikipedia.org/wiki/Drill_bit_sizes

    One aspect of this method of sizing is that the size increment between drill bits becomes larger as bit sizes get smaller: 100% for the step from 1/64 to 1/32, but a much smaller percentage between 1 47/64 and 1 3/4. Drill bit sizes are written as irreducible fractions. So, instead of 78/64 inch, or 1 14/64 inch, the size is noted as 1 7/32 inch.

  4. Edexcel - Wikipedia

    en.wikipedia.org/wiki/Edexcel

    Edexcel (also known since 2013 as Pearson Edexcel) [2] is a British multinational education and examination body formed in 1996 and wholly owned by Pearson plc since 2005. It is the only privately owned examination board in the United Kingdom. [ 3 ]

  5. List of drill and tap sizes - Wikipedia

    en.wikipedia.org/wiki/List_of_drill_and_tap_sizes

    Such an appropriately sized drill is called a tap drill for that size of thread, because it is a correct drill to be followed by the tap. Many thread sizes have several possible tap drills, because they yield threads of varying thread depth between 50% and 100%.

  6. Drill bit - Wikipedia

    en.wikipedia.org/wiki/Drill_bit

    While the above is a common use of center drill bits, it is a technically incorrect practice and should not be considered for production use. The correct tool to start a traditionally drilled hole (a hole drilled by a high-speed steel (HSS) twist drill bit) is a spotting drill bit (or a spot drill bit, as they are referenced in the U.S.). The ...

  7. Watts Brothers Tool Works - Wikipedia

    en.wikipedia.org/wiki/Watts_Brothers_Tool_Works

    The Harry Watts square drill bit is based on a Reuleaux triangle shape. It is used together with a guide and a particular chuck to make a square hole. [3] [4] Similarly, the company also manufactures drill bits for other angular holes such as pentagons and hexagons.

  8. Academic grading in the United States - Wikipedia

    en.wikipedia.org/wiki/Academic_grading_in_the...

    For example, two common conversion systems used in honors and Advanced Placement courses are: A = 5 or 4.5; B = 4 or 3.5 [5] C = 3 or 2.5; D = 2 or 1.5; F = 0 [19] Denver Public Schools uses a different system in honors and AP courses to get weighted GPA values; the scale is as follows: A = 5.2; A− = 4.77; B+ = 4.33; B = 3.9; B− = 3.47; C+ ...

  9. National Board for Professional Teaching Standards - Wikipedia

    en.wikipedia.org/wiki/National_Board_for...

    Proposition 4: Teachers think systematically about their practice and learn from experience Proposition 5: Teachers are members of learning communities The National Board publishes standards of “accomplished teaching” for 25 certificate areas [ 5 ] and developmental levels for pre-K through 12th grade .