"quiet operation" is correct and usable in written English.
You can use it to refer to a situation in which something operates without producing much noise. For example, "The new machine is designed for quiet operation and can be used in a busy office environment without disturbing anyone."
The pair also appear to be operating a deliberately quiet operation.
This type of heating offers quiet operation and relatively little heat loss through the distribution system.
It offers many advantages including high speed, quiet operation, and compatibility with a variety of printing media.
Importantly, the elimination of bulky tracking hardware and quiet operation will allow extensive residential deployment of concentrated solar power.
Publishing is, or should be, a quiet operation, and it was Fleischmann's talent to make it almost inaudible.
Inkjet printing is considered one of the most promising printing technologies that offers several advantages including high speed, quiet operation and compatibility with a variety of substrates.
The majority of these new systems rely on transit technologies that are significantly improved over the carriages of old, with modern features, smooth rides and quiet operations.
At the Nasdaq OMX Group, a single technician sits in front of eight flat-panel computer screens in a quiet operations center, 51 stories above the World Trade Center construction site.
The energy-efficient designs employing the AMD Athlon™ X2 Dual Core 4850e processor consume less power, resulting in less wasted energy, lower operational cost as well as cooler and quieter operation.
The principal characteristic of a fuel cell is its ability to convert chemical energy directly into electrical energy giving much higher conversion efficiencies than any conventional thermo-mechanical system thus extracting more electricity from the same amount of fuel, operate without combustion so they are virtually pollution free and have quieter operation since there are no moving parts.
Flatbeds provide larger viewing monitors, much quieter operation, better sound quality, and faster speeds than the vertical Moviola.
