by Sunday | Oct 6 | NABTEB QUESTIONS
Tempering as in heat treatment is done to relives internal strain in harden steel thus increases its toughness. While normalizing in heat treatment is done to relieve internal stresses in steel due to forging, machining, or cold workpiece.
by Sunday | Oct 6 | NABTEB QUESTIONS
It is difficult to harden low carbon steel because of its low carbon content.
by Sunday | Oct 6 | NABTEB QUESTIONS
i. Single tool post ii. Multi-tool post
by Sunday | Oct 6 | NABTEB QUESTIONS
1. Over all 2. Safety Boots 3. Eye goggles 4. Helmet 5. Hand gloves 6. Face shield
by Sunday | Oct 6 | NABTEB QUESTIONS
Drilling machine is termed sensitive drilling machine because one can feel all the strains on the drill in the feed handle.
by Sunday | Oct 6 | NABTEB QUESTIONS
i. Hand drill ii. Portable electric drill iii. Hand feed drill press iv. Back geared upright drill.