60
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To answer this question the motor voltage and amperage is needed.
It depends on how much power the lamps require, and on how they are connected.
There is not enough information given to solve this problem. What is the speed of rotation?
It depends upon what kind of generator you are talking about. I would recommend reading the owner's manual to see if there is any limitation on how long it can be run continuously. You will probably have to stop it every so often for oil changes and whatever other routine maintenance is required. Your owner's manual should give you that information. Also it depends upon what is the demand for electricity and what other power sources are available.
exhaust
Induction type alternator and synchronous generator.
Many hacks are on MapleStory, such as the Meso Generator, Fame Generator, and the Nexon Generator. Do not hack MapleStory or you will get baned.
Yes, many generators are installed indoors. Any where that requires standby power have the generators in a room especially designed too accommodate them. Hospitals, sewage treatment plants water treatment plants to name a few all have generator backup. The major consideration when generators are installed indoors is that they have the proper ventilation. A full free controlled flow of outside air for cooling and combustion purposes is a must. The most important aspect of an indoor generating system is the venting of the exhaust system to the outside of the building in which the generator is housed. This exhaust system should not be in close approximation to the incoming flow from the outside cooling air. This is to prevent carbon dioxide from the engine's exhaust being drawn back into the building.
It varies according to the individual and the amount of change desired
At least one. Beyond that it depends on the specific design of the generator.
You can find a contractor to install your generator at clowelectrics.com. They have many experienced contractors to install your generator at your home.