Food Processing Unit Operations MCQ
What fruit or vegetable may also contain Ferulic acid?
Answer
Correct Answer:
Citrus fruits
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What is another name for Ferulic acid?
Answer
Correct Answer:
Ferulic acid: Type of phenol found in various fruits and vegetables and citrus fruits
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What type of phenol is found in various fruits and vegetables and citrus fruits?
Answer
Correct Answer:
Ferulic acid
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What is the name of the container used to ferment?
Answer
Correct Answer:
Fermentation barrel
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What is another name for a Fermentation Barrel?
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What changes do bacteria, yeast and mold cause in food?
Answer
Correct Answer:
Fermentation
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Some uncooked starches are slow to ferment what are they?
Answer
Correct Answer:
Cellulose
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Which type of carbohydrates are easy for microorganisms to attack?
Answer
Correct Answer:
Fermentable
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What are the most vulnerable carbohydrates to micro organisms?
Answer
Correct Answer:
Sugars and cooked starches
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What does the letter "FCC" stand for?
Answer
Correct Answer:
Food Chemicals Codex
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Some vitamins dissolve in fat but not in water?
Answer
Correct Answer:
Fat-soluble vitamins
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What type of vitamin doesn't dissolve in water but does in fats or oils?
Answer
Correct Answer:
Fat-soluble
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What are replacers used to replace?
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Fat replacers generally fall into what three categories?
Answer
Correct Answer:
Carbohydrate-, protein- or fat-based
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What does a product that has suffered from inadequate tempering or temperature abuse look like on the surface?
Answer
Correct Answer:
Dull white film
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What is the result of improper tempering?
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What is the result of inadequate tempering or temperature abuse of a properly tempered chocolate?
Answer
Correct Answer:
Fat bloom
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Fat is what unit resulting from combination of glycerine and fatty acids?
Answer
Correct Answer:
Chemical unit
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How many units of fatty acids is a triglyceride?
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Fat contains three units of what?
Answer
Correct Answer:
Fatty acids
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What are facultative organisms?
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What type of bacteria can grow either with or without free oxygen present?
Answer
Correct Answer:
Facultative
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What type of electric field pulses destabilize cell membranes?
Answer
Correct Answer:
High voltage
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What is the process known as when a microbial cell is exposed to high voltage electric field pulses?
Answer
Correct Answer:
Electroporation
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Electrohydraulic treatment is what type of treatment?
Answer
Correct Answer:
Rapid discharge of high voltage electricity across an electrode gap
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What is a type of electrical discharge used on water suspensions?
Answer
Correct Answer:
Electrohydraulic treatment
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What is an example of an electrode?
Answer
Correct Answer:
Part of the pH meter
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What part of the pH meter senses voltage?
Answer
Correct Answer:
Electrode
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What do electrodes sense?
Answer
Correct Answer:
Electrical potentials
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What distance is measured between the inner and outer electrode of an electrode gap?
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What can happen if operating at very low pressures in a microwave?
Answer
Correct Answer:
Electrical breakdown
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What happens to the bacterial cell membranes when an abrupt rise in electric current occurs?
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What do you find in the dictionary when you look up the term Electric field intensity?
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Electric field intensity is known as what?
Answer
Correct Answer:
Electric field strength
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What is the E at a charge per unit distance for ohmic heating and P-E-F?
Answer
Correct Answer:
Voltage divided by the distance between the electrodes
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What is the definition of field intensity?
Answer
Correct Answer:
Force on a stationary positive charge per unit charge in an electrical field
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Egg products processing involves what?
Answer
Correct Answer:
Breaking, filtering, mixing, stabilizing, blending, pasteurizing, cooling, freezing or drying
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What is done to egg products before they are packaged?
Answer
Correct Answer:
Processing
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What are products containing egg components called?
Answer
Correct Answer:
Egg products
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What are egg products?
Answer
Correct Answer:
Eggs that have been removed from their shells and processed
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What kind of esterification is a percentage of methoxylated carboxyl groups?
Answer
Correct Answer:
Degree of esterification
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What is the degree of esterification?
Answer
Correct Answer:
Percentage of methoxylated carboxyl groups
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What is the degree of amidation?
Answer
Correct Answer:
Percentage of amidated groups
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What is the measure of the degree of amidation in an acyclic molecule?
Answer
Correct Answer:
Percentage
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What does the word "degradability" mean?
Answer
Correct Answer:
Ability of materials to be broken down
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What is the ability of materials to be broken down?
Answer
Correct Answer:
Degradability
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What type of candy was used to cover strawberries?
Answer
Correct Answer:
Decorator's chocolate
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What were decorator's chocolates used to cover?
Answer
Correct Answer:
Strawberries
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What is the term for the time needed to rise from 37% of process pressure to the original pressure?
Answer
Correct Answer:
Decompression time
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What percentage of reducing sugar are DE of glucose syrup and maltodextrin?
Answer
Correct Answer:
Dextrose equivalent
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What is the DE value of glucose syrup and maltodextrin?
Answer
Correct Answer:
Dextrose equivalent percentage of reducing sugar
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What is the % of reducing sugar in Dextrose equivalent value?
Answer
Correct Answer:
Dextrose equivalent percentage
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When is the Danger Zone?
Answer
Correct Answer:
Between 5°C (41°F)and 140°F
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What does a DC power supply do?
Answer
Correct Answer:
Deliver direct current to the capacitor bank
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Electrical device to deliver what to the capacitor bank?
Answer
Correct Answer:
Direct current
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What type of items do you think would be best calculated using flour capacity?
Answer
Correct Answer:
Bakery recipes
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What is the capacity of flour?
Answer
Correct Answer:
Used to calculate bakery recipes
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What is the process of canning?
Answer
Correct Answer:
Process by which a food product is enclosed in a sterilized container totally impervious to microbes
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What can be used to can a food product?
Answer
Correct Answer:
Sterilized container
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What does the term canning salt refer to?
Answer
Correct Answer:
Pickling salt
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How are eggs with cracked shells and interior defects identified?
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Candling is used to identify eggs with what kind of defects?
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What is the name of the process of passing an egg over a light?
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How many grams of water are in a gram of water?
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What is the amount of heat required to raise the temperature of 1 gram of water by 10°C?
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What is used to calibrate thermometers in food establishments?
Answer
Correct Answer:
Ice slush method
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What is the best source of calcium for teens?
Answer
Correct Answer:
Milk and other diary foods
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What kind of chocolate contains little to no caffeine?
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How much caffeine is contained in a cup of decaf coffee?
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What type of stimulant can be?
Answer
Correct Answer:
Central nervous system
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What is the most commonly known source of caffeine?
Answer
Correct Answer:
Coffee and cocoa beans
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What type of stimulant effect can occur at certain doses of caffeine?
Answer
Correct Answer:
Mild central nervous system
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What does the word "caffeic" mean?
Answer
Correct Answer:
Antioxidant like activities
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What does the name of the phenol in question mean?
Answer
Correct Answer:
Caffeic acid
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Where is the cacao tree native?
Answer
Correct Answer:
South America
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What color is beta-carotene?
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What kind of processing is done with a batch?
Answer
Correct Answer:
Treatment
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What is the term for treating food in bulk?
Answer
Correct Answer:
Batch treatment
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What is a kitchen known as in the business world?
Answer
Correct Answer:
A regional kitchen
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What is the pH of ammonia?
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What is a base?
Answer
Correct Answer:
Substance with a pH above 7.0
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What has a pH of 10.0?
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What is primarily used by brewers?
Answer
Correct Answer:
Balling hydrometer scale
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Who devised the Balling hydrometer scale?
Answer
Correct Answer:
C J N Balling
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What is the relation of malt to hops in a beer?
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What is the relation of malt to hops in a beer called?
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What is the primary use for baking chocolate?
Answer
Correct Answer:
An ingredient
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What is the primary use of baking chocolate?
Answer
Correct Answer:
As an ingredient
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A "bacteriophage" is a virus capable of infecting what?
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What does bacteriocin effectively protect bacteria from?
Answer
Correct Answer:
Competing organisms
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What can be both harmful and helpful to food?
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What are bacteria?
Answer
Correct Answer:
Large group of single-celled micro-organisms which can be both harmful and helpful to food
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What kind of poisons are produced by Aspergillus molds?
Answer
Correct Answer:
Aflatoxins
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What does the term "Aerobic plate count" mean?
Answer
Correct Answer:
Method for determining the presence and concentration of aerobic bacteria in food products
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What is the name of the method used to measure the concentration of aerobic bacteria in food products?
Answer
Correct Answer:
Aerobic plate count
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What does the term Aerobe mean?
Answer
Correct Answer:
Organism, especially a Gram E bacterium
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What does Aerobe need to live?
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What sort of contamination is adulteration?
Answer
Correct Answer:
Deliberate
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What constitutes adulteration?
Answer
Correct Answer:
Deliberate contamination of foods with materials of low quality
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Without heat transfer what could be considered an adiabatic compression?
Answer
Correct Answer:
Compression or decompression processes
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Without heat transfer, what do compression and decompression processes have in common?
Answer
Correct Answer:
Adiabatic
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What are pesticides considered to be?
Answer
Correct Answer:
Additives
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What component in an active packaging retains its effectiveness in an airless space?
Answer
Correct Answer:
Active component
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What does active packaging allow a controlled interaction between the food, package and?
Answer
Correct Answer:
Internal gaseous environment
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What variable is the pressure coefficient calculated from?
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What is the value of V?
Answer
Correct Answer:
Activation volume constant
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What is the term for the slope of the ln(k) versus 1/TA plot?
Answer
Correct Answer:
Temperature coefficient
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What is the term for the amount of energy it takes to change the temperature of a system by 1 Kelvin?
Answer
Correct Answer:
Activation energy constant
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What are used to alter and control the acidity or alkalinity levels for different desired effects?
Answer
Correct Answer:
Acidity regulators
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What kind of food does not have an optimal pH?
Answer
Correct Answer:
Acidified
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What does the term "acidified food" mean?
Answer
Correct Answer:
Product with a natural pH of 4.6 or below
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What is the most common pH?
Answer
Correct Answer:
Less than 7.0
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What sort of substance has a pH of less than 7.0?
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How much sweeter is Ace K than sugar?
Answer
Correct Answer:
200 times
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What is acesulfame potassium 200 times sweeter than?
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What is the acceptable daily intake of a substance?
Answer
Correct Answer:
Quantity of a food additive
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What does excessive absorption of fat do?
Answer
Correct Answer:
Imparts an unpleasant greasiness
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How much fat is desirable to provide flavor, eating quality, etc.?
Answer
Correct Answer:
A certain amount of fat
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