Freezers that use liquid nitrogen to freeze food quickly are ...

[evelyn o bentley]

Freezers that use liquid nitrogen to freeze food quickly are known as:
 
  A) Blast freezers. B) Conduction freezers.
  C) Immersion freezers. D) Cryogenic freezers.

Question 2

Large rooftop package AC units often use ________ sensors to help draw in fresh air to meet code requirements and to cool if temperature and humidity permit.
 
  A) Enthalpy B) Low pressure C) Economizer D) Airflow

[bbburns21]

Answer to Question 1

D

Answer to Question 2

C

[evelyn o bentley]

Wow, this really help

[parker125]

Thanks for the timely response, appreciate it