by Sunday | Oct 3 | NABTEB QUESTIONS
Carbon composition and their application. S/N METAL CARBON (%) USES 1 Mild Steel 0.15-0.3 Boiler plates, bridge work structure sections, drop forgings, general workshop purposes 2 Medium carbon Steel 0.3 to 0.5 0.5 to 0.7 Axels, drop forgings high...
by Sunday | Oct 3 | NABTEB QUESTIONS
Normalizing is the process of refining the structure of steel and remove stains which might have been caused by cold working Annealing is the process of heating the metal to a certain temperature and allows it to cool. This will make the metal easy to machine and also...
by Sunday | Oct 3 | NABTEB QUESTIONS
(i) Hardness: The hardness of a metal is a measure of its ability to withstand scratching, wear and abrasion and indentation by harder bodies (ii) Toughness: This is the amount of energy a material can absorb before it fractures. (iii) Strength: the strength of a...
by Sunday | Oct 3 | NABTEB QUESTIONS
ANSWER (i) Cutting – the process of removing metal (swarf or chips) from the parent metal with the help of cutting tool i.e. on the centre lathe or slotting machine. (ii) Cutting Feed – This is the rate at which the tool is fed into the work. This depends upon various...
by Sunday | Oct 3 | NABTEB QUESTIONS
ANSWER A blind hole is a hole which is not drilled through a component
Land Law and the Consequences of Unauthorized Land Transfers in Nigeria
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