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Tolerance

Tolerance. Level 4. Tolerance. Tolerance Notation. www.mathsrevision.com. Level 4. Starter Questions. www.mathsrevision.com. Tolerance. Level 4. Learning Intention. Success Criteria. Understand the term Tolerance. 1. To explain what Tolerance is.

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Tolerance

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  1. Tolerance Level 4 Tolerance Tolerance Notation www.mathsrevision.com Created by Mr. Lafferty Maths Dept.

  2. Level 4 Starter Questions www.mathsrevision.com Created by Mr. Lafferty Maths Dept.

  3. Tolerance Level 4 Learning Intention Success Criteria • Understand the term Tolerance. . • 1. To explain what Tolerance is. • 2. Calculate and simplify basic Tolerances. www.mathsrevision.com Created by Mr. Lafferty Maths Dept.

  4. Tolerance When a builder orders steel bolts to help to a house, he would like them to be 50 millimetres long EXACTLY. This is not always possible so the builder allows a ‘little error’ either side of this. www.mathsrevision.com

  5. Tolerance Tolerance is written as (50±2)mm He might be prepared to accept any bolt as long as it lies between 48mm and 52mm www.mathsrevision.com This means he will accept a bolt which is within 2mm of the 50mm he asked for. This is referred to as the TOLERANCE for the measurement.

  6. Tolerance Tolerance Notation Now try TJ 4+ Ex 7.1 Ch7 (page 42) www.mathsrevision.com Created by Mr. Lafferty Maths Dept.

  7. Level 4 Starter Questions www.mathsrevision.com Created by Mr. Lafferty Maths Dept.

  8. Tolerance Tolerance Notation Level 4 Learning Intention Success Criteria • Write tolerances in standard notation. • To explain how • write tolerances in standard notation. www.mathsrevision.com Created by Mr. Lafferty Maths Dept.

  9. Tolerance Tolerance Notation Example : An acceptable size of apples on sale at Asda must have a diameter between 8cm and 12cm. Write the tolerance level in standard notation. Calculate the middle value Tolerance is written as (10±2)cm www.mathsrevision.com 8 + 12 = 10 2 Created by Mr. Lafferty Maths Dept.

  10. Tolerance Tolerance Notation Example : For safety reasons an acceptable rivet joint for an aeroplane joint must be between 19.9mm and 20.1mm in diameter. Write the tolerance level in standard notation. www.mathsrevision.com Calculate the middle value Tolerance is written as (20±0.1)mm 19.9 + 20.1 = 20 2 Created by Mr. Lafferty Maths Dept.

  11. Tolerance Tolerance Notation Now try TJ 4+ Ex 7.2 Ch7 (page 43) www.mathsrevision.com Created by Mr. Lafferty Maths Dept.

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