Boeing uses many jet engines from different manufacturers. Every jet aircraft is fitted with 2 to 4 propulsion engines, usually built by Pratt and Whitney. Every large jet transport also has an APU or Auxiliary Power Unit. These are generally Garrett turbines, this is a small jet engine in the tail unit driving a generator and sometimes a hydraulic pump to give ground power in the absence of airfield units.
I was wondering if you knew what kind of drug test Boeing uses?
Pratt and Whitney are famous Boeing engine manufacturers.
The 747-400 use 3 different engine manufacturers; Pratt & Whitney, General Electric and Rolls Royce.
The 4 engine Boeing 707 was replaced by the 2 engine 757.
The Lockheed Martin/Boeing F-22 Raptor uses 2 Pratt & Whitney F119 turbofan engines, with thrust-vectoring capability.
two
The Boeing 777 is a two engine jet airplane. If one engine fails and the other engine is still working, yes it can still fly with one engine.
the Boeing 777 has a twin engine system (2 engines).
The Boeing planes, and most modern multi-engine aircraft, can still manage to fly even if one engine stopped to function.
on the wings
it burns the fuel
turbofan