(RPL) Assessment Tool Kit - WestOne

Candidate’s name
MEM50205 Diploma of Engineering – Technical (Mechanical)
Section 4 – Practical Tasks and Observation Recording Sheets
Demonstration/Observation Checklist
Skill Set 1 – Engineering foundations
Task 2 – Maths assessment
Problem 1 – Calculations using concepts of arithmetic
a) A manufacturer makes a 23% profit on the sale of a steel pressure vessel. The vessel cost
$26 000 to fabricate, so what does he sell it for?
Note: Show the working out to estimate your answer before using your calculator to
determine your final solution.
b) 14 packets of electrodes cost $78.05. How much would 23 packets cost?
Note: Show the working out to estimate your answer before using your calculator to
determine your final solution.
c) Calculate the total length of welding required on the open-topped water tank shown.
Assuming that each electrode would give 260 mm of weld length, calculate the number of
electrodes required to weld the tank.
1000 mm
1200 mm
d) Write each of the following in scientific notation.
i. 84 171.83
ii. 0.9416
1800 mm
Page 79 of 206 © Department of Education and Training 2009
Version 1, July 2009