F

FARAD F
The farad is the SI unit of the capacitance of an electrical system, that is, its capacity to store electricity. It is a rather large unit as defined and is more often used as a microfarad. See Metric Prefixes.

It is named after the English chemist and physicist Michael Faraday (1791-1867), who was an electrical pioneer. More on Faraday.

FIFTH WHEEL
Coupling device attached to a tractor or dolly that supports the front of a semitrailer and locks it to the tractor or dolly. The fifth wheel's center is designed to accept a trailer's kingpin, around which the trailer and tractor or dolly pivot in turns.

FOR-HIRE CARRIER
Transports the freight of others. A private carrier carries company freight on company trucks (often complete fleets of trucks).
'For-hire' includes Common and Contract Carriers.
For-hire carriers are regulated in the US by the UDDOT (interstate) or by the state DOT or PUC (intrastate).
(PUC = Public Utility Commission).
See TL Carrier, LTL Carrier