Glossary “neutral flame” Definition:
An oxyfuel gas flame that has neither oxidizing nor reducing characteristics.
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neutral junction
Glossary “neutral junction” Definition:
The center connection to which the common ends or a Y-type stator winding are connected.
net horsepower
Glossary “net horsepower” Definition:
Maximum engine horsepower as measured on a dynamometer.
net torque
Glossary “net torque” Definition:
Maximum engine torque as measured on a dyno.
negative wheel slip
Glossary “negative wheel slip” Definition:
Wheel lockup that occurs when too much braking force is applied to a wheel and the tire skids on the pavement. ABS controls negative wheel slip by modulating the hydraulic pressure to the wheel or wheels that is/are skidding.
nematic
Glossary “nematic” Definition:
Describes a fluid that is a liquid crystal with a threadlike form. It has light slots that can be rearranged by applying small amounts of voltage.
neoprene
Glossary “neoprene” Definition:
Type of synthetic rubber that is resistant to heat, light, oil, and oxidation.
nerf bars
Glossary “nerf bars” Definition:
Small, tubular bumpers at the front and rear of a car.
net brake horsepower
Glossary “net brake horsepower” Definition:
Flywheel horsepower of a fully equipped engine, with all accessories in operation, measured on a dynamometer.
negative pole
Glossary “negative pole” Definition:
Negative terminal on a battery. Also known as negative post.
negative post
Glossary “negative post” Definition:
Same as negative pole.
negative pressure test
Glossary “negative pressure test” Definition:
Part of the respirator fit test. Performed by placing the palms of both hands over the filter cartridges and inhaling. A good fit is evident if the face piece collapes onto your face due to a good seal.
negative temperature coefficients (NTC)
Glossary “negative temperature coefficients (NTC)” Definition:
The ability of a substance to change its characteristic opposite for a given change in temperature. Type of thermister in which the resistance decreases as the temperature increases.
negative terminal
Glossary “negative terminal” Definition:
The side of a battery or electrical device nearest ground potential, often identified by a minus (-) sign.
negative ion
Glossary “negative ion” Definition:
Any atom or group of atoms that have more electrons than protons.
negative offset
Glossary “negative offset” Definition:
A wheel rim that has been placed inward from the center of its mounting flange.
negative caster
Glossary “negative caster” Definition:
The forward tilt of the steering axis.
negative coefficient thermister
Glossary “negative coefficient thermister” Definition:
Resistance will lower as the coolant temperature increases.
negative back pressure EGR
Glossary “negative back pressure EGR” Definition:
EGR system having a normally closed bleed hole which opens when back pressure increases, closing a diaphram valve and allowing engine vacuum to raise the pintal valve off the seat.
negative back pressure EGR valve
Glossary “negative back pressure EGR valve” Definition:
EGR valve having a normally closed bleed hole which opens when back pressure drops, reducing vacuum above the diaphragm and cutting off the recirculation flow.