Cryogenic liquid storage tanks are:

a. Nonpressure tanks that are highly insulated.
b. Atmospheric pressure non-insulated tanks.
c. Very low-pressure highly insulated tanks.
d. May very in pressure ratings, with some as high as 300 psi and heavily insulated.

Ans: d. May very in pressure ratings, with some as high as 300 psi and heavily insulated.