Glossary “tetrafluoroethane” Definition:
Chemical name for the “ozone-friendly” refrigerant commonly known as HFC-134a or, more simply, R-134a.
t
TFI
Glossary “TFI” Definition:
Thick Film Ignition
TFT
Glossary “TFT” Definition:
Transmission Fluid Temperature
test light
Glossary “test light” Definition:
A small, non-powered or self-powered light used to determine electrical continuity in a circuit.
test weight (TW)
Glossary “test weight (TW)” Definition:
Vehicle weight that is used by emission test sites to load the dynamometer during emission testing.
test wheel
Glossary “test wheel” Definition:
Controlled procedure, used by the NHTSA to perform laboratory tests for temperature-resistance testing of automotive tires as determined by how long the tire lasts on the test wheel. The ratings are A, B, or C, with an A rating having the best temperature resistance.
tetrachloroethylene
Glossary “tetrachloroethylene” Definition:
Chlorinated cleaning solvent with four chlorine atoms per molecule.
test lamp
Glossary “test lamp” Definition:
Term used for test light.
TES
Glossary “TES” Definition:
Thermal Electric Switch
test
Glossary “test” Definition:
Procedure whereby the performance or component or system is measured under certain conditions.
tera
Glossary “tera” Definition:
The prefix representing the number 1,000,000,000,000
terminal
Glossary “terminal” Definition:
1). A battery post or connector. 2). An electrical connector. 3). The point where two or more conductors are connected.
terminal speed
Glossary “terminal speed” Definition:
The maximum speed, in drag racing, that a vehicle achieves when passing through the traps at the end of the strip.
ternary
Glossary “ternary” Definition:
Having three parts, elements, or divisions.
tensioners
Glossary “tensioners” Definition:
Wheel, roller, or pad, pressed against a belt or chain, to maintain its tension.
tensile strength
Glossary “tensile strength” Definition:
Maximum tension a metal can withstand without breaking. Refers to the amount of force needed to break a material by pulling on it.. This is the method used to rate bolt materials.
tension
Glossary “tension” Definition:
Effort that elongates or “stretches” a material.
tension-loaded ball joint
Glossary “tension-loaded ball joint” Definition:
Suspension component mounted in the lower control arm with the ball-joint stud facing upward into the knuckle so the vehicle weight tends to pull the ball out of the joint.
tensile force
Glossary “tensile force” Definition:
Moving force that slides or pulls an object over a surface.
temporary strainer
Glossary “temporary strainer” Definition:
Device installed during the run-in period of a new or rebuilt system, intended to remove coarse debris particles present in the system. After a suitable period it is removed.