Olete.in
Articles
Mock Tests
🧪 Agricultural Engineering MCQ Quiz Hub
Dairy Engineering MCQs Set-3
Choose a topic to test your knowledge and improve your Agricultural Engineering skills
1. Which of the following is/are whey protein?
α – lactalbumin
β – lactoglobulin
κ- lactis
α – lactalbumin and β – lactoglobulin
2. Which of the following fat-soluble vitamins are present in milk?
A
D
A & D
B
3. Combination of glucose (C6H12O6) and galactose (C6H12O6) molecules result in:
Maltose
Galactose
Lactose
Sucrose
4. Which of the following does not accelerate the rate of oxidation of fat?
Presence of iron and copper salts
Presence of dissolved oxygen
Exposure to light
Presence of water
5. _______ is the principal contributor to sunlight flavor.
Methional
Ethane
Heptanes
Acid
6. What is the process of breakdown of fat into glycerol and free fatty acid called?
Addition
Reduction
Oxidation
Lipolysis
7. Enzyme responsible for Lipolysis is ____________
Pepsin
Pectinase
Lipases
Rennin
8. The purpose of heat treatment on milk is ___________
Kill pathogenic microorganism
Heat milk
Evaporation
Taste enhancement
9. The fat globules in milk when heated to 74℃ show which of the following phenomenon?
Frothing
Evaporation
Cream plug formation
Condensation
10. ________ is recommended in order to avoid cream plug formation.
Cooling
Freezing
Churning
Homogenization
11. What is the result of heat treatment on proteins?
Denaturation
Blanching
Spore formation
Froth formation
12. Denature Protein contributes to an improvement in the quality of which of the following products?
Cultured milk product
Milk
Ice cream
Cream
13. Effect of Heat treatment (Temperature above 100℃) on Lactose:
Greenish color
Bluish color
Brownish color
Reddish color
14. The lactulose content ______ with increased intensity of the heat treatment.
Decrease
Increase
Remains same
First increase and then decrease
15. Most Heat sensitive vitamin in milk is?
Vitamin A
Vitamin B
Vitamin C
Vitamin D
16. Effect of Pasteurization on Vitamins in Milk ___________
Great loss
Little or no loss
Denature
Sublime
17. Which of the following mineral is affected by heat treatment in milk?
Calcium
Potassium
Hydroxyphosphate
Zinc
18. Heat treatment on minerals results leads to ___________
Clumps formation
Bubble formation
Foul smell
Loss of cheese making characteristics
19. The only persons regulated by federal orders are _____
Farmers
Truckers
Handlers
Retail store owners
20. The increased use of bulk cooling and storage equipment has made _____ bacteria the primary organisms in raw milk.
Psychrophilic
Coliform
Staphylococcus
Streptococcus
21. _____ is the cause of the rancid flavor in milk.
Feeding high moisture corn
Feeding haylage
Storing milk in the sunlight
Extreme agitation of raw milk
22. Which of the following does not promote metallic/oxidized off flavor in milk?
Hypochlorite sanitizer
Sunlight
Fluorescent light
Copper
23. Whole milk contains _____ percent protein.
1.5-2.5
2.5-3.5
3.5-4.0
4.0-4.5
24. Which of the following is not an objective of milk evaluation?
Determining the presence of desirable characteristics
Determining one brand of milk from another
Determining if one sample differs from another
Determining the presence and magnitude of undesirable characteristics
25. Mastitis infecting microorganisms almost invariably gain entrance to the mammary gland via the _____
Caudal base
Blind quarter
Streak canal
Feed
26. A _____ cup is a cup with fine wire mesh on top used to detect the presence of abnormal milk.
Striated
Mesh
Streak
Strip
27. A _____ needs to be applied to the teat end in order for a milking machine to remove milk.
Massaging action
Pulsation
Vacuum
Pressure
28. Which of the following four primary taste sensations is correctly matched with the causal agent?
Salty-sugar
Bitter-quinine
Sweet-lactic acid
Sour-table salt
29. Some streptococci that produce lactic acid also produce certain aldehydes, which impart a _____ flavor.
Malty
Bitter
Salty
Metallic
30. By using a _____ with plastic beads of varying density, nonfat solids in milk can be rapidly estimated.
Lactometer
Hydrometer
Humidoscope
Polyscope
31. The two main proteins in milk are ____ and ____
Lactose, Lactalbumin
Casein, Lactalbumin
Ascorbic, Thiamin
Colgate, Casein
32. Vitamin _____ was first discovered in milk fat and is important to eyesight.
A
B
C
D
33. Milk contains all the known vitamins and is an especially good source of ___
Cyanocobalmin
Riboflavin
Ascorbic Acid
Thiamine
34. Farm marketing cooperatives have been in existence since the early?
1800’s
1900’s
1700’s
1920’s
35. Federal Milk Marketing Orders affect prices consumers pay for fresh milk in grocery stores by?
Adjusting them according to demand
Adjusting them according to supply
Leaving them to be determined in the marketplace
Setting them only once yearly
36. What percent of exported U.S. dairy products are sold without a subsidy?
0 %
50 %
80 %
95 %
37. Dairy farmers receive what percent of the sale of a half-gallon of milk?
46 %
15 %
26 %
96 %
38. Demand for dairy products is typically the lowest in?
Spring
Summer
Fall
Winter
39. What percent of today’s youth consume the recommended amount of dairy products?
10%
30%
50%
75%
40. Milk that is used to make butter is classified as which class in Federal Orders?
Class I
Class II
Class III
Class IV
41. Milk prices on average are the lowest in?
Summer
Fall
Spring
Winter
42. The Federal Orders of today are based on the Agricultural Agreement Act of?
1927
1947
1937
1966
43. The practice that distributes payments for milk among the producers within a specific Federal Milk Marketing Order is called?
Pool pricing
Classified pricing
Support pricing
Differential pricing
44. What piece of legislation made farmer cooperatives legal?
Sherman Act
Capper-Volstead Act
Farm Bill
Barkley Act
45. To be labeled made with organic ingredients a dairy product must contain _________ percent or more organic ingredients.
100
90
80
70
46. The reason that testing of milk is done in laboratories of the USDA Milk Market Orders is?
To assure safety of the supply
To provide an accurate accounting for amounts of milk solids sold in the order
To make sure food and drug law is followed
To provide data for the US Statistical Reporting Service
47. Milk traits, i.e. fat, protein, SNF, and etc), tend to have a heritability of about __________
Less than 10%
20-30%
40-50%
More than 50%
48. Cows treated with BST typically show an increase of __________ in daily milk production.
2%
10%
20%
30%
49. What is the accepted standard length for a lactation record for dairy cattle?
200 days
305 days
365 days
100 days
50. What can heart girth measurements of cows be used to estimate?
Age
Milk production
Calving date
Body weight
Submit