430A Tool and Die Maker Practice Quiz
Free · 169 Questions.

• At least once a year, with a signed record kept
• Once every three years, by the manufacturer's representative
• At the start of each shift, with a verbal report to the supervisor
• After a major repair, with a written record kept for the repair file

Why: O. Reg. 851 s. 51(1) requires a competent person to examine a lifting device before first use and then as often as needed, at least once a year, with a signed record. A per-shift operator check or a three-year interval does not meet that rule.

• The blade is dull and should be replaced at once
• The blade is cutting normally; granular chips are expected
• The band speed is too slow and should be raised
• The blade pitch is too coarse for the plate thickness

Why: A blade that is hard to hold on the line and produces granular chips (except in cast iron) is dull and should be replaced. Granular chips are not normal in steel, and a coarse pitch or slow speed does not produce these symptoms.

• Very slowly, by shutting off the furnace and cooling with it
• Quenched in oil to refine the structure and relieve stress
• Cooled in still air on the bench, away from drafts
• Sprayed with a water mist to limit scale and distortion

Why: Steel is cooled very slowly from annealing temperature, by furnace cooling or packing in sand or ash, to give maximum softness. Faster cooling in air or liquid leaves a harder structure.

• On the punch face, with the die face left flat
• Across the die face, so the slug drops through easily
• On both faces in equal amounts to balance the load
• On the stripper plate, with punch and die left flat

Why: Shear belongs on the punch when the surrounding stock is wanted and the slug is scrap. Shear goes on the die face only for the opposite case, where the piece pushed through is the product.

• An initial tryout to confirm the tool is safe, functional and accurate
• A heat-treatment check that the tool steel reached its specified hardness
• A full production run to confirm the supplier can meet the quoted piece price
• A drawing review in which the customer approves the tool design

Why: Proving out is an initial tryout of a new or reconditioned tool to ensure its safety, functionality and accuracy. Hardness checks, piece-price runs and design approvals are separate steps.