DOT Code: 007.161-026, O*NET Code: 17-3027.00

Visit the Occupational Outlook Handbook for a detailed description of this trade. Type the trade name in the Search box and hit Enter.


Apply theory and principles of mechanical engineering to modify, develop, and test machinery and equipment under direction of engineering staff or physical scientists.

Work Process Schedule

A.Blueprint Reading500
B.Reading Schematics and Symbols600
C.Basic Shop Math600
D.Making Measurements600
E.Working with Metals in the Plant500
F.Working with Non-Metals in the Plant400
G.Plant Safety500
H.Basic Pneumatics600
I.Pneumatics Trouble-Shooting400
J.Basic Hydraulics600
K.Hydraulic Trouble-Shooting400
L.Welding Principles500
M.Gas Welding Processes600
N.Arc Welding Processes600
O.Drafting and Sketching600
(Every 2,000 hours = one year) Total Hours:8000

Related Technical Instruction

The Commonwealth of Massachusetts requires 150 hours each year of related technical instruction which must be mastered by the apprentice in order to successfully complete the program. For further information, please call the Division of Apprentice Training at (617) 626-5409.