Explore topic-wise MCQs in Dairy Engineering.

This section includes 104 Mcqs, each offering curated multiple-choice questions to sharpen your Dairy Engineering knowledge and support exam preparation. Choose a topic below to get started.

51.

Milk contains all the known vitamins and is an especially good source of ___

A. Cyanocobalmin
B. Riboflavin
C. Ascorbic Acid
D. Thiamine
Answer» C. Ascorbic Acid
52.

Whole milk contains _____ percent protein.

A. 1.5-2.5
B. 2.5-3.5
C. 3.5-4.0
D. 4.0-4.5
Answer» D. 4.0-4.5
53.

Milk with an Acid Degree Value (ADV) of 1.0 or above will have a detectable ______ flavor.

A. Rancid
B. Malty
C. Acidic
D. Fruity
Answer» B. Malty
54.

Which of the following is not a cause of coliform mastitis?

A. Cracked or split inflations
B. Milking too soon after calving
C. Using excessive water in washing udders
D. Slightly damp, warm bedding
Answer» C. Using excessive water in washing udders
55.

The __________ test is used to detect if milk has been pasteurized properly.

A. Lipase
B. Coliform
C. Standard Plate Count
D. Phosphatase
Answer» E.
56.

Federal Milk Marketing Orders are a mechanism for?

A. The most economical utilization of milk
B. Finding a market for every producer’s milk
C. Economical transportation of milk
D. Market stabilization
Answer» E.
57.

Federal milk marketing orders give _______ an active voice in determining minimum milk prices through public hearings.

A. Milk activists
B. Milk handlers
C. Milk processors
D. Milk consumers
Answer» C. Milk processors
58.

The Grade A Pasteurized Milk Ordinance (PMO) specifies requirements for the production of Grade A raw milk for pasteurization and is recommended by _________

A. The Food and Drug Administration
B. The Small Business Administration
C. The U.S. Department of Agriculture
D. The National Committee on Milk
Answer» B. The Small Business Administration
59.

While some extra-label drugs can be used by food-producing animals, others cannot. Which of the following is/are an illegal drug(s)?

A. Clenbuterol
B. Penicillin
C. Tetracycline
D. Ivomec
Answer» B. Penicillin
60.

The ability of lipase in milk to attack milk fat and produce a rancid off flavor is enhanced by?

A. Excessive agitation of warm raw milk
B. Poorly cleaned milking equipment
C. Exposing milk to sunlight
D. Feeding cows moldy hay
Answer» B. Poorly cleaned milking equipment
61.

Mastitis infecting microorganisms almost invariably gain entrance to the mammary gland via the _____

A. Caudal base
B. Blind quarter
C. Streak canal
D. Feed
Answer» D. Feed
62.

The two main proteins in milk are ____ and ____

A. Lactose, Lactalbumin
B. Casein, Lactalbumin
C. Ascorbic, Thiamin
D. Colgate, Casein
Answer» C. Ascorbic, Thiamin
63.

Vitamin _____ was first discovered in milk fat and is important to eyesight.

A. A
B. B
C. C
D. D
Answer» B. B
64.

Some streptococci that produce lactic acid also produce certain aldehydes, which impart a _____ flavor.

A. Malty
B. Bitter
C. Salty
D. Metallic
Answer» B. Bitter
65.

Operating costs of Federal orders are paid by ______

A. The State Department of Agriculture
B. The Federal government
C. The milk producers
D. The milk handlers
Answer» E.
66.

_________ is the time after processing during which a dairy product normally remains suitable for human consumption.

A. Code date
B. Product life
C. Package date
D. Shelf date
Answer» E.
67.

The four primary taste sensations are _____________________

A. Bitter, metallic, sour, sweet
B. Bitter, salt, sour, sweet
C. Metallic, salt, sour, sweet
D. Burnt, bitter, salt, sour
Answer» B. Bitter, salt, sour, sweet
68.

Water added to milk is detected by checking the _____

A. Acid degree value
B. Sediment content
C. Titratable acidity
D. Freezing point
Answer» E.
69.

Federal Milk Marketing Orders provide or describe __________

A. Sanitary standards used for grade A
B. Milk purchased by dealers
C. Milk sold by farmers
D. Payment made to milk producers for milk
Answer» E.
70.

The Babcock test is a rapid, simple and accurate test for __________

A. Water in milk
B. Titratable acidity
C. Fat content
D. Nonfat milk solids content
Answer» D. Nonfat milk solids content
71.

What is the most popular size container used for fluid milk?

A. Gallon
B. Half Gallon
C. Quart
D. Five quart bulk
Answer» B. Half Gallon
72.

Which of the following is not one of the duties of the bulk milk hauler, who plays a critical role in milk handling?

A. Checking milk temperature
B. Making sure equipment has been cleaned correctly
C. Examining milk to determine appearance
D. Collecting a representative sample to be used for tests
Answer» C. Examining milk to determine appearance
73.

Milk provides__________ and _____________ in approximately the same ratio as found in bone.

A. Calcium and Magnesium
B. Calcium and Phosphorus
C. Calcium and Iron
D. Phosphorus and Magnesium
Answer» C. Calcium and Iron
74.

In Federal order markets, milk sold for consumption in fluid form is in __________

A. Class IV
B. Class III
C. Class II
D. Class I
Answer» E.
75.

Milk is the only source of __________ in nature.

A. Calcium
B. Phosphorous
C. Lactose
D. Fatty acids
Answer» D. Fatty acids
76.

The “set aside” of $0.15 per hundred pounds of milk from a milk producer’s check is used in programs that support ______

A. Promotions & research
B. Research & testing
C. Teaching & promotion
D. Promotion & teaching
Answer» E.
77.

A pooling method, whereby, handlers with higher than average utilization pay into and handlers with lower than average utilization receives payment from is called _______

A. Base excess pricing
B. Louisville takes out and pay back
C. Individual handler pools
D. Producer settlement fund
Answer» E.
78.

The ideal cleaning material for removing milk stone from milking equipment surfaces is _____

A. Acidic detergent
B. Phosphate
C. Surfactant
D. Chelate
Answer» B. Phosphate
79.

Bacteria that survive specific heat treatment are said to be _____

A. Psychotropic
B. Coliform
C. Psychrophilic
D. Thermoduric
Answer» E.
80.

Milk is a good supplier of minerals except for _____

A. Magnesium-Iron-Manganese-Copper
B. Riboflavin-Magnesium-Lactose-Manganese
C. Phosphorus-Copper-Zinc-Calcium
D. Potassium-Boron-Iron-Calcium
Answer» B. Riboflavin-Magnesium-Lactose-Manganese
81.

________ is exposure of hot milk or milk product to reduced pressure to affect the removal of volatile substances, especially those that enter milk from feed).

A. Vaporization
B. Infusion heater
C. Vacuumization
D. Vac Pac process
Answer» D. Vac Pac process
82.

Which of the following is not a part of the establishment of a federal marketing order?

A. A public hearing is held for the producers-handlers and the public
B. Must be approved by 2/3 of the producers supplying 3/4 of the milk
C. Cooperative associations of milk producers petition the U.S. Secretary of Agriculture
D. A producer cooperative may vote all its members who deliver milk during a certain period)
Answer» C. Cooperative associations of milk producers petition the U.S. Secretary of Agriculture
83.

The establishment of a Federal milk marketing order is generally initiated by ________

A. Dairy farmers, through their cooperative association
B. Milk handlers in the market
C. Consumers
D. Dairy farmers, milk handlers and consumers
Answer» E.
84.

What marketing tool would be used in the futures market by someone who owns a commodity such as milk and intends to sell it sometime in the future?

A. Basis contract
B. Pooling contract
C. Short Hedge
D. Speculating buyer
Answer» D. Speculating buyer
85.

Lactose is the principal ________ in milk.

A. Fat
B. Protein
C. Carbohydrate
D. Mineral
Answer» D. Mineral
86.

The two most important etiologic agents of mastitis are __________

A. Streptococcus agaiactiae and Staphylococcus aureaus
B. Streptococcus uberis and Streptococcus dysgapactiae
C. Pseudomonas aeruginosa and coliform bacteria
D. Klebsiella and actinomycetes
Answer» B. Streptococcus uberis and Streptococcus dysgapactiae
87.

Which of the following is not an important reason for a five day-seven degree shelf life test?

A. Psychotropic bacteria reproduce at this temperature
B. Data made available for control application in a reasonable time
C. It lowers variability among cartons of milk
D. The Temperature is at or near the maximum at which milk will be stored
Answer» D. The Temperature is at or near the maximum at which milk will be stored
88.

A milk order, including pricing and other provisions, becomes effective only after approval by ____________

A. Consumers
B. Dairy farmers
C. Milk processors
D. Secretary of Agriculture
Answer» C. Milk processors
89.

Specific gravity of milk at 60°F is __________

A. 1.022
B. 1.032
C. 1.033
D. 1.042
Answer» C. 1.033
90.

Most farm bulk milk tanks are designed for every-other-day (EOD) pickup and must cool 25 percent of the volume of the tank to ___ degrees F within two hours after milking.

A. 25
B. 45
C. 60
D. 70
Answer» C. 60
91.

A cryoscopy is an important tool that test for __________ in milk.

A. Butterfat
B. Antibiotics
C. Pesticides
D. Added water
Answer» E.
92.

One objective of a federal order is to _______________

A. Assure all dairy farmers an adequate income
B. Assure consumers that an adequate supply of pure, wholesome milk
C. Assure that all dairy plants receive an adequate supply of milk
D. Prevent surpluses of milk in the marketplace
Answer» C. Assure that all dairy plants receive an adequate supply of milk
93.

Milk found in cows with a high somatic cell count would result in a decrease in __________

A. Butterfat
B. Whey protein
C. Casein
D. Trace minerals
Answer» D. Trace minerals
94.

The largest percentage of the U.S. milk supply is utilized in the production of ______

A. Cream and specialty sales
B. Cheese
C. Frozen dairy desserts
D. Evaporated, condensed and dry products
Answer» C. Frozen dairy desserts
95.

___________ is a test for rancidity.

A. Acid degree value
B. Cryoscope
C. Disc assay
D. Titratable acidity
Answer» B. Cryoscope
96.

The increased use of bulk cooling and storage equipment has made _____ bacteria the primary organisms in raw milk.

A. Psychrophilic
B. Coliform
C. Staphylococcus
D. Streptococcus
Answer» B. Coliform
97.

When cows have mastitis, the protein content of milk may be higher, but the cheese yield is lower because of a decrease in _______ protein.

A. Lysine
B. Casein
C. Tryptophan
D. Whey
Answer» C. Tryptophan
98.

To reduce the feed flavor in milk to acceptable levels, cows should be removed from offending feeds _____ hours before milking.

A. 1-2
B. 2-4
C. 4-6
D. 6-8
Answer» C. 4-6
99.

According to the Food & Nutrition Board of the National Academy of Sciences, all people need at least _________ milligrams of calcium per day.

A. 100
B. 1000
C. 10,000
D. 100,000
Answer» C. 10,000
100.

One type of test for antibiotics, common adulterants of milk, is based upon the principle that the growth of bacteria is __________ by them.

A. Stimulated
B. Enhanced
C. Magnified
D. Inhibited
Answer» E.