Packaging Machinery & Technology Flashcards
7 cards from real CPP practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Packaging Machinery & Technology flashcards as text
In a blister packaging machine, what is the purpose of the 'forming station'?
Answer: Heat and shape the base web into cavities for product
The forming station heats thermoplastic film to its softening point and uses compressed air or plug-assist forming to create cavities that hold the product.
What does the term 'net contents' labeling require regarding fill level for packaging machinery calibration?
Answer: Average system fill must meet declared weight; individual units may vary within tolerance
U.S. NIST Handbook 133 allows individual packages to vary from declared net content, but the average for a lot must meet or exceed the labeled amount.
A 'star wheel' transfer mechanism in packaging machinery is primarily used for:
Answer: Precisely positioning and transferring round containers between stations
Star wheels have precisely machined pockets that capture round containers and rotate them to index between machine stations at high speeds.
Which type of pump is preferred for filling foamy or carbonated beverages to minimize product agitation and CO2 loss?
Answer: Counter-pressure gravity filler
Counter-pressure filling pre-pressurizes the container with CO2 before introducing the beverage, minimizing foaming and carbonation loss during the fill.
What is 'clean-in-place' (CIP) as applied to food packaging machinery?
Answer: Automated internal cleaning of product-contact surfaces using circulated cleaning solutions without disassembly
CIP systems circulate water, detergent, and sanitizing solutions through product-contact pathways automatically, eliminating the need to dismantle the equipment for cleaning.
In packaging machinery safety standards, what does 'guarding by distance' (safety distance) refer to?
Answer: Positioning physical barriers far enough from hazardous moving parts that a person cannot reach the hazard
Safety distance calculations (per ISO 13857) ensure guards are placed far enough from hazardous zones that the human body cannot reach the hazard through or around the guard.
Which printing technology used for variable data (date codes, lot numbers) on packaging applies ink droplets without contact using electrically charged ink streams?
Answer: Continuous inkjet (CIJ) printing
Continuous inkjet printers deflect a stream of charged ink droplets electrostatically to form characters on packaging surfaces at high line speeds without contact.