Glossary “NVRAM” Definition:
Nonvolatile Random Access Memory.
n
NWRA
Glossary “NWRA” Definition:
National Wheel and Rim Association.
NVM
Glossary “NVM” Definition:
Non Volatile Memory
NVH
Glossary “NVH” Definition:
Noise, Vibration and Harshness
numeric tire rating
Glossary “numeric tire rating” Definition:
An alpha-numeric group molded into the tire sidewall indicating tire application, aspect ration, and rim size.
nut
Glossary “nut” Definition:
Fastener having internal threads used on a bolt to secure two or more pieces together.
N/V
Glossary “N/V” Definition:
Ratio of input shaft speed to vehicle speed. Used by the PCM to control the transmission.
nucleus
Glossary “nucleus” Definition:
The core or central part of the atom, consisting of protons and neutrons and having a positive electrical charge
number failure code
Glossary “number failure code” Definition:
Term used for failure code.
number of cylinders
Glossary “number of cylinders” Definition:
Total number of cylinders (1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12 or 16) contained in an engine.
NTP
Glossary “NTP” Definition:
Normal Temperature and Pressure.
NTPA
Glossary “NTPA” Definition:
National Tractor Pullers Association.
NTRDA
Glossary “NTRDA” Definition:
National Tire Dealers and Retreaders Association, Inc.
N-type semiconductor material (N)
Glossary “N-type semiconductor material (N)” Definition:
A semiconductor material in which the majority carriers are electrons, and there is an excess of electrons over holes.
NPN
Glossary “NPN” Definition:
Transistor with P-type base
NPS
Glossary “NPS” Definition:
Neutral Pressure Switch, or Neutral Position Switch
NSRA
Glossary “NSRA” Definition:
National Street Rod Association.
NTC
Glossary “NTC” Definition:
Negative Temperature Coefficient. Type of thermistor in which resistance decreases as temperature increases.
nozzle
Glossary “nozzle” Definition:
The orifice or jet through which fuel passes when it is discharged into the carburetor bore.
Nostalgia Drag Racing Association (NDRA)
Glossary “Nostalgia Drag Racing Association (NDRA)” Definition:
An organization staging drag races for older cars.