Outside. Anything you do to the inside will restrict air flow.
You insulate any ductwork where you want to control the temperature diffences between the inside and outside of the duct. One example would be the combustion air duct, usually a round sheet metal line that comes from the outside and ends near the furnace and/or water heater. Typically this would be insulated with fiberglass padding held in place with a plastic coating. Larger, rectangular ductwork can be insulated with internal or external insulation, not always fiberglass, of verying thicknesses.
There are three main types of air ducts: sheet metal, pre-insulated, and flexible duct work. Sheet metal air ducts can be made of galvanized steel or aluminum, and may be insulated inside or outside with fiberglass. There are pre-insulated air ducts, which are relatively inexpensive to install, made of fiberglass duct board, polyurethane foam panels, or phenolic foam panels. Air ducts can also be flexible ducts, made of flexible plastic over a wire coil.
Air insulated means the substation is in the open air, and the dielectric strength of the air is used to isolate conductors from each other and from ground. Gas insulated means a specific gas is used for insulation; this gas is usually an inert gas such as nitrogen. Gas insulated substations, by definition, are required to be inside a contained structure, or large piping must be placed around all conductors to hold the gas.
Inside mostly. By a desk/computer, designing things.
This seems like a question from an electrical course, and is probably best answered by your course materials. It's your test question, not ours, and there won't always be someone to ask for the answer. Earn your diploma.
because its insulated like a starefome cooler
Yes, masonry conducts heat. That's why, for a well insulated house, you should have something like a layer of fiberglass between the masonry on the outside, and the drywall (or woodwork) on the inside.
The building was insulated and the people inside it was hot.
you stay inside and let it go outside when it needs to.
It all depends on the size of the house, how well it is insulated, the outside temperature, and the inside temperature. For most houses about 20 kW should be enough (say 75,000 BTU/hour)
Telescopes are used inside
Inside if the sentence inside the brackets is a question.
You can choose
A double insulated tool will have a picture of a box with a second box inside.
I Think Yes?
Inside and out of the reach of children.
It depends...you want them to poo or pee inside your house?