Unlikely. People tend to forget that close to the blast the sheer energy of the shockwave, and the heat of the explosion (reaching tens of millions of degrees) will utterly destroy everything in its path. If we look at the Indiana Jones film then it is more likely that he and the fridge he was hiding in would be smashed to bits or vapourised by the blast.
A smaller thickness of lead can be used than other, less dense, materials to absorb most of the of ionising radiation from the blast itself. However, the lead would offer little protection from the shockwave and thermal radiation given off by the blast.
Also, assuming that you did survive the initial blast you would not be able to leave the refrigerator as the environment outside would remain highly radioactive for a long period of time and would be contaminated with fallout material. If you tried to live in the refrigerator long enough for the radiation levels to drop low enough for you to get out of the refrigerator without suffering radiation poisoning, you would not have enough food, water, or air in order to survive that long.
no
35km
blast effects
Type your answer here... blast effect
magnitude of the blast & fire effectsradiation
none
Only by being a safe distance away.
Yes the tsunami did trigger the nuclear blast because the water got into the nuclear reactor and buggered it up
If you are referring to the blast of a nuclear bomb, you could easily lose your vision.
no
This really depends on a number of factors, such as the yield of the weapon, the detonation altitude, and the terrain.
yes, thousands
The blast effects (which is all the question as worded asks about) would be the same as the blast effects of a weight of TNT identical to the nuclear bomb's yield (by definition). However a nuclear bomb has additional effects that the TNT doesn't, but as this question only asked about blast effects, I won't visit them.
Blast, always blast.
Correct answer is blast effect
35km
A direct nuclear blast - nothing. However it is said that cockroaches would possibly survive radiation where other animals would be killed.