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Q: Cryogenic shows-
  • A. Low temperature
  • B. high temperature
  • C. Low pressure
  • D. high pressure
Correct Answer: Option A - Cryogenics is the study of the production and behaviour of material at very low temperature (≈ -150⁰C). It is not well defined at what point on the temperature scale refrigeration end and cryogenics begins but scientist assume a gas to be cryogenics if it liquefied at or below –150⁰ C.
A. Cryogenics is the study of the production and behaviour of material at very low temperature (≈ -150⁰C). It is not well defined at what point on the temperature scale refrigeration end and cryogenics begins but scientist assume a gas to be cryogenics if it liquefied at or below –150⁰ C.

Explanations:

Cryogenics is the study of the production and behaviour of material at very low temperature (≈ -150⁰C). It is not well defined at what point on the temperature scale refrigeration end and cryogenics begins but scientist assume a gas to be cryogenics if it liquefied at or below –150⁰ C.