j - j is used in engineering and physics to represent i the imaginary number.
Jackbolt - A bolt or screw attached to the baseplate or foundation that is used to move or position the machine that is being
Jackscrew - A bolt or screw attached to the baseplate or foundation that is used to move or position the machine that is
Jarno - A standard taper having 0.600 inch taper per foot used on some machine tools.
Jewellers Screwdriver - A small precision screwdriver.
Joint - Interface between two parts.
Joist - Horizontal wood framing member set from wall to wall to support the boards of a floor or ceiling.
Jominy Test - Used for determining end-quench hardenability.
Joule - A unit of work, energy, or heat
Jury rig - Any makeshift device or apparatus rigged as a substitute for regular gear. Also used as a verb.
Engineering Glossary, Engineering Dictionary J
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