Only if the can say you can
Christy's 'Red Hot Blue Glue' is an excellent product to use on Sch.80 or 40 PVC.
No, but you do have to prime it thoroughly. I use purple primer and Weld On 711 and always get good results.
if your waste pipe is PVC and your glue is for PVC . yes! but make sure to use a primer(cleaner) on the pipe first.
The amount of glue that you use on pipe depends on the number of joints or fittings - not length of pipe. - One litre is a lot of pipe glue ! -I have done thousands of feet of PVC pipe and fittings this past year, and still have some glue left in my litre can of Weld-On 711.
I don't understand why you'd want to do that . CPVC glue is expensive, PVC glue is cheap and glues PVC pipe better.
No, it will not glue it, just dry up and become flaky. You must use a proper glue for each plastic. - Yellow glue is only for ABS.
You'll have to explain what PC pipe is. I work with all kinds of pipe and never heard of that one.
No
Use teflon tape with a little pipe dope. If you don't ever have to take apart again then you can use glue which you are calling cement
Use only black pipe
There are many solvent glues that have been specifically formulated for use with different plastic pipes. Depending on the schedule of the piping 40, 80 etc what type of glue you want to use, some are slow setting some set very quickly and the choice of the glue also would depend on the ambient temperature and humidity factor. It also depends on whether you want to use the glue for waste or water. Water PVC pipes need high pressure glue where as waste pipes don't.
noANS 2 - Part of the point of pipe thread compound is to prevent surfaces sticking together.