If you are changing the rims yes you will need it checked.
If you are just changing over a tyre it isn't essential and most probably will still be balanced.
No. If there had previously not been any alignment issues, and as long as the new tires are properly balanced, you will not need an alignment.
I'd at least have it checked, just to be sure everything's fine
A tire alignment is not necessary when changing tire sizes. You can tell by the wear on your previous tires if you need an alignment. If you have uneven wear, get an alignment.
Your tires are bad or you need an alignment. Get your tires checked, they may need to be replaced or rotated, and you can check your alignment by letting go of the steering wheel while driving, if it drifts left or right significantly, you need an alignment.
Because your steering wheel is being turned, which puts your tires in another position rather than straight. You might need an alignment, or a wheel balancing.
Depends on when you had your last alignment and the condition of the tires you removed. It they were wearing perfectly even then you may not need an alignment. If you have not had an alignment in the last 36,000 miles you may very well need one. Judgment call on your part based on the evidence.
It is in the way you wheel wear. If you go to tyre centre they will be able to tell you if you need an alignment as they can see the way you tyres are wearing.
You need to have a 4 wheel alignment.
it will change a little from tread height but typically no even low or over inflated tires can change align angles but if it does not pull to one side or cause irregular tire wear who cares.
If your car's tires are out of balance it will usually cause a vibration or thumping. If your wheel alignment is out it will usually cause the car to pull to one side.
There is no need to have a cars wheels aligned on a regular bases. It is a good idea though to have the alignment checked when installing new tires to prevent excess wear on the tires.
At least every 30,000 miles. If you let go of the wheel and your car veeres right or left. If you drive and your car and your steering wheel shakes, its not an alignment you need, you need your tires balanced