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UNIT 87 REVIEW QUESTIONS ANSWER KEY GO BACK TO INDEX
87-1) List eight applications for commercial ice machines.
87-2) How much ice will a 12 ounce drinking cup approximately hold?
87-3) About how many dice ice cubes would it take to equal one pound of ice?
87-4) How is crushed ice made?
87-5) Why is flake ice ideally suited for any “contact” presentation such as displaying
fish at the supermarket?
87-6) Can ice machine cleaning solution be mixed with sanitizing solution?
87-7) Why is the flushing cycle important for flake ice machines?
87-8) What is the purpose of the auger seal on a flake ice machine?
87-9) List three safety devices used for flake ice machines.
A low water safety protects against dry operation or freeze up in the evaporator
87-10) What might cause a high pitched squeak or squeal in combination with low
production and soft mushy ice in a flake ice machine?
87-11) Why would it be desired to increase the head pressure for a cube ice machine?
87-12) How can discharge pressure for a cube ice machine be artificially increased?
87-13) What could cause frequent tripping on high discharge pressure and poor ice
production?
87-14) What would happen if the ice machine had a partially blocked water distributor
tube?This would lead to bridging of some freezing cells and a lack of ice in others.
87-15) What could cause ice to build up and bridge downward over the freezing cells?
87-16) What could happen if there were a burned out solenoid on a hot gas valve?
87-17) What could cause ice to build up in the ice bin?
87-18) List two things that might lead to a decrease in ice production?
87-19) Why might an ice machine produce cloudy ice?
87-20) What type of fault could lead to extended harvest times?
