EXERCISES, LESSON 1
REQUIREMENT. The following exercises are to be answered by marking the lettered
response that best answers the question, or by completing the incomplete statement, or
by writing the answer in the space provided at the end of the question.
After you have completed all the exercises, turn to "Solutions to Exercises" at the end of
the lesson and check your answers with the Academy solutions.
In the canning industry, the term commercial sterilization means that:
a. A product has been processed to make it completely sterile.
b. A product has been processed to destroy or inhibit most spoilage organisms.
c. A product has been processed for a least 3 hours at 212oF (100oC).
d. Commercial canning has been done under sterile conditions.
Hermetically sealed is the term used in the canning trade to indicate that:
a. The can has been sealed after all the air has been expelled.
b. The can and contents have been heat treated.
c. The can has been sealed after the excess air has been expelled.
d. The can is airtight.
The most common method of tin-plating is
What is the purpose of enamels in the can-making process?
a. Provides camouflage for the can.
b. Provides a thin coating of tin to the surface of the base plate.
c. Prevents or inhibits unfavorable reactions between the inside of the can and
d. Provides additional protection to the exterior of the can.