TE21905B – Trade Calculations
Module code
TE21905B
Module title
Trade Calculations
Prescription
This unit standard is for use in entry level training of mechanical engineering and related trades, and covers trade calculations and use of units of measurement, underpinning subsequent learning.
People credited with this unit standard are able to carry out arithmetic, algebraic, and trigonometric operations, use tables and graphs, and define and use quantities and units.
NZQA Level
Level 2
NZQA Credits
4
Delivery method
- Not Web enabled
Learning hours
- Directed hours
- 32
- Self directed hours
- 8
- Total learning hours
- 40
Resources required
- Assessment Criteria
- element 1 Carry out arithmetic and algebraic operations.
performance criteria
1.1 Basic arithmetic operations are carried out.
1.2 Fractions are converted to decimals and percentages, and vice-versa.
1.3 Multiples are expressed to the power of 10 and vice-versa.
1.4 Calculator is used for engineering calculations.
1.5 Area and volume calculations are carried out for simple two and three dimensional shapes using given data.
1.6 Given formulae are transposed to solve for an unknown quantity.
element 2 Carry out trigonometric operations.
performance criteria
2.1 Lengths and angles are calculated in right-angle triangles.
element 3 Use tables and graphs.
performance criteria
3.1 Graphs are sketched from tabular data on graph paper.
3.2 Tables are constructed by reading values from given graphs.
element 4 Define and use quantities and units.
performance criteria
4.1 Unit names and symbols are matched to the corresponding quantities.
4.2 Quantities are defined in terms of more elementary quantities.
4.3 The difference between mass and weight is explained.
4.4 Values of quantities are re-stated using different SI prefixes.
4.5 Values of quantities expressed in imperial units are converted to metric and vice versa.
