Glossary “halo effect” Definition:
An unwanted shiny ring or halo that appears around a pearl or mica paint repair. It is caused by the paint being wetter in the middle and drier near the outer edges of the repair.
h
halogen
Glossary “halogen” Definition:
Refers to any of five chemical elements-astatine (At), bromine (Br), chlorine (Cl), fluorine (F), and iodine (I)- that may be found in some refrigerants.
half wave rectifier
Glossary “half wave rectifier” Definition:
A rectifier that conducts current to the load only during one alternation of a cycle of ac voltage i.e.. an automotive generators out put is half-wave rectified.
halide
Glossary “halide” Definition:
Any compound of halogen with another element such as refrigerant
halide leak detector
Glossary “halide leak detector” Definition:
Device consisting of a tank of propane gas, a stove, a chimney, and a search hose used to detect CFC refrigerant leaks by visual means.
half moon key
Glossary “half moon key” Definition:
Term often used for Woodruff key.
half shafts
Glossary “half shafts” Definition:
On either side of the differential that transmit power to the drive wheels.
HAI
Glossary “HAI” Definition:
Hot Air Intake
half cycle
Glossary “half cycle” Definition:
When the voltage signal form an oxygen sensor crosses over a predetermined threshold. The predeterminer thresholds are the rich to lean switch points.
H2O
Glossary “H2O” Definition:
Water
H2SO4
Glossary “H2SO4” Definition:
Sulfuric acid solution
HAC
Glossary “HAC” Definition:
High Air Control, or High Altitude Compensator
hacksaw
Glossary “hacksaw” Definition:
Tool sometimes used to cut metal parts. Designed to cut on the push stroke.
HADV
Glossary “HADV” Definition:
Heated Air Diverter System
H
Glossary “H” Definition:
Hydrogen