Final answer:
Temperature indicators are essential instruments associated with heat exchangers, ensuring the effectiveness of heat transfer and quality control in processes like sterilization.
Step-by-step explanation:
The kind of instrumentation you would expect to find closely associated with all heat exchangers is temperature indicators. The primary function of a heat exchanger is to transfer heat between two or more fluids, which necessitates careful monitoring of the temperature to ensure that the process is occurring as expected. Temperature indicators, which may include thermometers such as alcohol, liquid crystal, or infrared radiation (pyrometer), play a critical role in this monitoring. They help in ensuring the effectiveness of heat transfer and thus are essential for the quality control of processes involving heat exchangers, such as sterilization in autoclaves.