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TRADE OF HEAVY VEHICLE MECHANIC - eCollege

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Module 1 – Unit 4 Bench Fitting and Drawing<br />

10. a What does R mean when place in front of a<br />

dimension?<br />

b what symbol is used to represent diameter?<br />

11. What type of line represents:<br />

A hidden detail?<br />

B a centre line?<br />

Draw the correct lines next to the questions.<br />

12. How would you know that part of a drawing had been<br />

drawing in section?<br />

Motor Mechanic – Phase 2 17 Revision 1.0 September 2007

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