No. Even a weak tornado can damage a chimney and people have been killed during tornadoes by falling pieces of chimneys.
No, hiding in a dumpster during a tornado would NOT be safe, because even a low-grade tornado could easily toss or crush a dumpster.
A closet can provide good shelter during a tornado.
yes
It depends on the strength of the tornado, but it is not as safe as a fully underground basement. In most cases it would be safe, especially if you can get into a room that is in the underground portion of it.
If it is underground, probably
A "fire tornado" is not a true tornado but a whirlwind spawned by an intense fire. If such a fire is approaching the area where you live you should evacuate immediately.
Safe during a fire
Yes, it's safe to put a book shelf next to a chimney (As long as the roof is flat and it's not raining) but not the fire.
No, hiding in a dumpster during a tornado would NOT be safe, because even a low-grade tornado could easily toss or crush a dumpster.
A closet can provide good shelter during a tornado.
No. It is not safe to be outdoors in a tornado, and outdoor elevators are often made largely of glass, which is dangerous to be near during a tornado.
Yes. A concrete basement is one of the safest places to be during a tornado.
If it is in a sturdy house or building, yes. In fact it is best to be indoors and preferably underground during a tornado.
It is not.Go to your basement.
yes
It depends on the strength of the tornado, but it is not as safe as a fully underground basement. In most cases it would be safe, especially if you can get into a room that is in the underground portion of it.
If it is underground, probably