Explore topic-wise InterviewSolutions in .

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

1.

What is a calf over six months of age called?(a) adult(b) mature(c) heifer(d) bullI got this question during an interview.Question is from Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Correct answer is (c) heifer

The EXPLANATION is: Heifer is a young cow over one year old that has not produced a calf.Heifers are FEMALE cows that have not YET given birth to a calf. Farmers can RAISE heifers for DAIRY or for meat.

2.

When showing calves and heifers where should the hind foot nearest the judge be when the animal is posed?(a) one half step back(b) no space(c) 2 steps back(d) 3 steps backI had been asked this question at a job interview.Asked question is from Cows in Dairy in division Building Blocks of Dairy Processing of Dairy Engineering

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The correct option is (a) one half step BACK

The best EXPLANATION: When POSING and showing a dairy animal, stay on the animal’s left side and stand. For cows and springing heifers, the HIND leg nearest the judge should be. Hind foot MUST be one and a half foot back.

3.

What is the most common of all dairy foods?(a) Butter(b) Curd(c) Cheese(d) MilkI have been asked this question during an interview.This key question is from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

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Correct OPTION is (d) Milk

The best I can explain: Milk is the most common dairy food. It is the BASIC raw MATERIAL of SEVERAL other dairy products.

4.

How many months prior to breeding a heifer should both leptospirosis and vibriosis vaccinations be given?(a) 1-2prior to breeding(b) 3-4prior to breeding(c) 4-5prior to breeding(d) 6-7prior to breedingI had been asked this question in my homework.This intriguing question originated from Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

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The correct answer is (a) 1-2prior to breeding

To explain: Vibriosis vaccine is often combined with LEPTOSPIROSIS in ONE vaccine.The use of artificial insemination is also VALUABLE in limiting disease spread.It should be administered 1-2 months PRIOR to breeding a heifer.

5.

How long the cherry hot electric dehorning iron should be applied to each horn button on a calf?(a) 10-15 sec(b) 15-20 sec(c) 1 min(d) 2 minThe question was asked in semester exam.I need to ask this question from Cows in Dairy in portion Building Blocks of Dairy Processing of Dairy Engineering

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Right option is (a) 10-15 sec

The best EXPLANATION: CHERRY hot electric DEHORNING iron is used to remove horns from CATTLE using the hot-iron method. It should not be applied for more than 10-15 sec.

6.

How should all movements and positioning of a dairy animal and her feet be accomplished?(a) halter command(b) feet pushing(c) body pushing(d) hand pushingThis question was addressed to me by my college director while I was bunking the class.This intriguing question comes from Cows in Dairy topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

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The correct choice is (a) halter command

Easiest EXPLANATION: Training an animal to LEAD by halter, this is required at shows and fairs. The latter involves unspoken and verbal COMMANDS between your animal and the MASTER.

7.

What nutrient acts as a lubricant and regulates body heat?(a) Vitamin A(b) Protein(c) Water(d) MineralsI had been asked this question at a job interview.Question is taken from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

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Correct option is (c) WATER

To elaborate: Water is the best LUBRICANT in a human BODY, It also acts as an EXCELLENT heat regulator in the body.

8.

Who calculates the official USDA DHIA Sire Summary?(a) USDA(b) UFSA(c) UUA(d) WHOI had been asked this question during an internship interview.The above asked question is from Cows in Dairy topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

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The correct ANSWER is (a) USDA

Explanation: USDA-DHIA SIRE SUMMARIES are PUBLISHED semiannually and provide the dairy industry with an accurate evaluation of the transmitting ability of bulls for MILK and milk components. It is calculated by the USDA.

9.

What is a baby dairy cow called?(a) baby(b) cochon(c) calf(d) shampI got this question in my homework.My question is based upon Cows in Dairy topic in portion Building Blocks of Dairy Processing of Dairy Engineering

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Correct OPTION is (c) calf

To explain I would say: A calf (PLURAL, calves) is the young of domestic cattle. Calves are reared to BECOME ADULT cattle or are slaughtered for their MEAT, called veal, and for their calf skin.

10.

When posing a dairy cow, why are the back legs set up so the one nearest the judge is one half steps forward?(a) rear and fore udder attachment(b) torso(c) calf(d) limbsThis question was addressed to me by my school principal while I was bunking the class.Enquiry is from Cows in Dairy in division Building Blocks of Dairy Processing of Dairy Engineering

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The correct option is (a) rear and fore udder attachment

To explain: When posing and showing a dairy animal, stay on the animal’s left side and STAND. For cows and springing heifers, the hind leg nearest the judge should be. Hind foot MUST be one and half foot BACK.

11.

An IBR-PI, pneumonia vaccination should first be given to a calf at what month of age?(a) 3months(b) 4 months(c) A year(d) 8 monthsThe question was posed to me in an interview for job.My enquiry is from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

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The correct option is (b) 4 months

To explain I would say: – Mostly a DISEASE of OLDER cattle but MAY contribute to calf PNEUMONIA on IBR positive farms. All cattle and calves can be given a live vaccine in the face of an outbreak. The vaccine should be administered 4 months after BIRTH.

12.

What are two important sire selection tools?(a) Predicted Difference and repeatability(b) Predicted life(c) Predicted death(d) Predicted ageThis question was addressed to me in homework.This interesting question is from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

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Correct choice is (a) Predicted DIFFERENCE and repeatability

To explain I WOULD say: Bull selection presents an IMPORTANT opportunity to enhance PROFITABILITY. Predicted difference and repeatability are two very important sire selection TOOLS.

13.

What is the largest single part of all living things?(a) protein(b) nutrients(c) water(d) skinThe question was posed to me in a job interview.This is a very interesting question from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

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The CORRECT answer is (c) WATER

To explain I WOULD SAY: Body is made up of approximately 80% water. It is the largest portion of any living body.

14.

What is a group of dairy cattle called?(a) flock(b) troop(c) group(d) herdI had been asked this question in an international level competition.I would like to ask this question from Cows in Dairy in portion Building Blocks of Dairy Processing of Dairy Engineering

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The correct OPTION is (d) herd

Easiest EXPLANATION: Herd is a large group of ANIMALS, especially HOOFED mammals that live together or are kept together as livestock.

15.

At what age should a brucellosis vaccination be given to a calf?(a) 2-6 months(b) 3 months(c) 12months(d) 8 monthsThe question was asked in homework.The question is from Cows in Dairy in division Building Blocks of Dairy Processing of Dairy Engineering

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Correct option is (a) 2-6 months

For explanation: For active immunization of FEMALE cattle calves and BUFFALO’s calves against BRUCELLA abortus infection brucellosis VACCINATION should be administered. It should be administered at the age of 2-6 months.

16.

When showing cows, where should the hind foot nearest the judge be when the animal is posed?(a) two steps back(b) one half step forward(c) three step back(d) lying downThis question was posed to me in an international level competition.This intriguing question comes from Cows in Dairy topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer» RIGHT option is (b) one half STEP forward

To explain I would say: The hind leg NEAREST the JUDGE is posed slightly behind the other about the distance of one half steps forward. Animal should be trained so the exhibitor can MOVE quickly and easily into the correct pose. Face animal uphill, if possible, with her front feet on a slight incline.
17.

What is the condition called which results from a lack of Vitamin E in the diet?(a) black muscle disease(b) grey muscle disease(c) white muscle disease(d) brown muscle diseaseThis question was posed to me by my school teacher while I was bunking the class.Enquiry is from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

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The correct option is (C) white muscle disease

The explanation: Nutritional MUSCULAR DYSTROPHY (NMD) or white muscle disease is caused by a deficiency of vitamin E, SELENIUM.

18.

What management practice helps prevent navel ill in newborn calves?(a) dipping foot(b) dipping navel in iodine(c) ethylene treatment(d) milkingI had been asked this question in an international level competition.I would like to ask this question from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

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The correct answer is (b) dipping navel in iodine

The best I can explain: – Consistent use of navel DIP for newborn heifer CALVES using a RECOMMENDED protocol. This PRACTICE helps preventing infection in the newborn.

19.

When considering sire selection, what does repeatability measure?(a) accuracy of sire’s Predicted Difference(P.D.)(b) efficiency(c) totality(d) resultI had been asked this question in a national level competition.This intriguing question originated from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

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Correct option is (a) ACCURACY of SIRE’s Predicted Difference(P.D.)

To EXPLAIN: Accuracy of sire’s PD plays an important ROLE during sire selection. It measures REPEATABILITY.

20.

The lack of which vitamin causes rickets?(a) vitamin A(b) Vitamin E(c) Vitamin D(d) Vitamin KThis question was addressed to me in an interview.I'm obligated to ask this question of Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

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Correct answer is (c) Vitamin D

Explanation: Lack of vitamin D RESULTS in reduced absorption of calcium and phosphorus. Difficulty maintaining PROPER calcium and phosphorus levels in bones can cause rickets. Symptoms include delayed growth, bow legs, WEAKNESS and PAIN in the spine, pelvis and legs.

21.

What hormone is important in the milking process?(a) Oxytocin(b) Thryoxine(c) Tri-iodothyronine(d) Parathyroid hormoneThe question was posed to me during an online exam.My doubt stems from Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

Answer» CORRECT choice is (a) Oxytocin

Easy explanation: Before milking, less than 20% of the milk yielded by dairy cows is STORED within the cistern, where it is immediately available for removal. Most of the milk is available for the milking MACHINE only after milk ejection, which occurs in RESPONSE to tactile teat stimulation and oxytocin release.
22.

The choice of animals to be parents of each new generation. Involves culling cows and selecting bulls is called?(a) classification(b) selection(c) mixing(d) breedingI have been asked this question in homework.This interesting question is from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

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Correct CHOICE is (B) SELECTION

To elaborate: Classification is the PRACTICE which involves culling and selection of bulls. It HELPS in the choice of parents of each new generation.

23.

The Ayrshire breed of dairy cow first came from what country?(a) Netherlands(b) New Zealand(c) USA(d) ScotlandThis question was addressed to me in a job interview.I want to ask this question from Cows in Dairy topic in portion Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right OPTION is (d) Scotland

Explanation: The Ayrshire BREED is originally from County Ayr, Scotland, before 1800.The ADULT Ayrshire cow weighs more than 450 to 600 KILOGRAMS (990–1,320 LB).

24.

What is the weight of a newborn calf?(a) 70-100 pounds(b) 120 pounds(c) 50-60 pounds(d) 20 poundsI have been asked this question in class test.This intriguing question comes from Cows in Dairy in division Building Blocks of Dairy Processing of Dairy Engineering

Answer»
25.

Which direction should the show person walk in relation to the cow?(a) forward(b) parallel(c) backward(d) frontThe question was posed to me in a job interview.My question is taken from Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

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Correct option is (c) BACKWARD

To elaborate: The person should WALK in a clockwise DIRECTION in the ring. It is advised to walk backward as compared to COW during the show.

26.

What is another name for Vitamin C?(a) tartaric acid(b) ascorbic acid(c) tannins(d) malic acidI got this question during an online exam.This interesting question is from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer» RIGHT CHOICE is (b) ascorbic acid

To explain I would say: Vitamin C is ALSO known as ascorbic acid. It is present in citrus FRUITS.
27.

What are the tiny cells in a cows udder called?(a) Alveoli(b) Hind(c) Leg(d) NippleThis question was addressed to me during an online interview.This question is from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer»

The correct CHOICE is (a) Alveoli

The best I can explain: An ALVEOLUS is composed of a single layer of EPITHELIAL cells SURROUNDING a lumen, ANOTHER section of lactating mammary tissue from a cow. They are tiny cells in cow udder.

28.

What is the father of a calf called?(a) bull(b) cow(c) calf(d) vacheThe question was asked at a job interview.I need to ask this question from Cows in Dairy topic in portion Building Blocks of Dairy Processing of Dairy Engineering

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Correct ANSWER is (a) bull

Explanation: The mature MALE of the SPECIES is CALLED a ‘bull’. It is the father of CALF.

29.

Switzerland is the origin of what dairy breed?(a) Holstein(b) Jersey(c) Brown Swiss(d) GuernseyI have been asked this question in quiz.My question is taken from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer»

The correct answer is (C) Brown Swiss

For explanation I WOULD SAY: Perhaps the OLDEST of all dairy breeds, Brown Swiss originated in the valleys and mountain slopes of Switzerland around 4000 B.C. Switzerland, the native home of the Brown Swiss is a rough and mountain trail country with a total area of about 15,940 square MILES.

30.

What is the process called when the egg from the cow and the sperm from the bull are joined?(a) milking(b) making(c) healing(d) fertilizationThis question was posed to me in unit test.This question is from Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

Answer» CORRECT choice is (d) fertilization

To explain: Fertilization is the fusion of haploid GAMETES, egg and sperm, to FORM the diploid ZYGOTE.
31.

Which direction should the cow be led in the ring?(a) clockwise(b) anticlockwise(c) parallel(d) horizontalThe question was asked in final exam.The question is from Cows in Dairy in section Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right CHOICE is (a) CLOCKWISE

Explanation: The lead strap should be looped loosely in the right hand. During the show inside the ring, the master will almost always be WALKING in a clockwise direction, so this is how master should practice when preparing for the round robin. When DISPLAYING, always STAY on the cows left side.

32.

What is a good source of carotene to provide Vitamin A to cattle?(a) Green leafy grass and yellow corn(b) Wheat(c) Maize(d) MilletI got this question in an interview for internship.My question is based upon Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right option is (a) Green leafy GRASS and yellow corn

BEST explanation: While grazing green grass, CATTLE get plenty of vitamin A but during the winter. The best source of this vitamin is beta-carotene, a pigment in green plants.

33.

In dairy cattle what is the mother called?(a) Sam(b) Ram(c) Dam(d) TamThe question was asked during an internship interview.My question is taken from Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

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34.

Cows of what breed are known for their yellow milk?(a) Holstein(b) Jersey(c) Brown Swiss(d) GuernseyThis question was addressed to me in homework.This key question is from Cows in Dairy in section Building Blocks of Dairy Processing of Dairy Engineering

Answer»

The correct answer is (d) Guernsey

To explain: Guernsey is a BREED of dairy cattle from the island of Guernsey in the CHANNEL ISLANDS. It is fawn or red and white in color and is hardy and docile. Its milk is rich in flavor, high in fat and protein, and has golden-yellow TINGE.

35.

What breed is the smallest of all the dairy breeds?(a) Holstein(b) Jersey(c) Brown Swiss(d) GuernseyI had been asked this question in semester exam.My question is taken from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right option is (B) Jersey

Explanation: Jersey is the smallest of the dairy BREEDS, WEIGHING in at 800 to 1,200 pounds, while the average cow WEIGHS about 1,500 pounds.

36.

What should be dipped in iodine after the birth of a calf?(a) calf’s leg(b) calf’s navel(c) calf’s foot(d) calf’s headThis question was addressed to me by my college professor while I was bunking the class.This interesting question is from Cows in Dairy topic in portion Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right choice is (B) calf’s navel

The best explanation: Remove any debris or straw on the navel CORD and dip it immediately, once the calf’s breathing well on its own. TINCTURE of iodine (at least seven percent iodine) should be used for dipping. The alcohol in the solution will HELP dry out the cord.

37.

What is the process called wherein the fat in milk is broken into small parts so it will not float to the top layer of milk?(a) Pasteurization(b) Thermalization(c) Homogenization(d) UHTThe question was asked in unit test.The above asked question is from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right CHOICE is (C) Homogenization

The best I can EXPLAIN: Homogenization is the process of breaking down the fat molecules in milk so that they STAY integrated rather than separating as cream. Homogenization is a purely PHYSICAL process; nothing is added to the milk.

38.

The lack of which vitamin causes night blindness in cattle?(a) vitamin K(b) vitamin B(c) vitamin A(d) vitamin CI have been asked this question by my college professor while I was bunking the class.The query is from Cows in Dairy topic in division Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Correct option is (C) vitamin A

For explanation I would SAY: Vitamin A deficiency (VAD) or HYPOVITAMINOSIS A is a lack of vitamin A in BLOOD and tissues. It is common in poorer countries but RARELY seen in more developed countries. Nyctalopia (night blindness) is one of the first signs of VAD.

39.

What breed of the dairy cow was first raised on the Island of Guernsey in the English Channel?(a) Guernsey(b) Holstein(c) Jersey(d) Brown SwissI got this question by my college director while I was bunking the class.This interesting question is from Cows in Dairy topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer» CORRECT option is (a) Guernsey

The explanation is: The Guernsey CATTLE BREED came first into being in the CHANNEL Islands between France and England and is named for the Isle of Guernsey, which is the most western of the group.
40.

What is an excellent point to blend into on the rear legs when clipping?(a) blood view in the hock region(b) udder(c) skin(d) eyesThe question was posed to me during an interview.Question is taken from Cows in Dairy in division Building Blocks of Dairy Processing of Dairy Engineering

Answer»

The correct answer is (a) BLOOD view in the hock region

For explanation: To assess the efficiency of grooming the following parts of the body should be EXAMINED carefully (1) poll region (2) INSIDE the ears (3) BEND of the knees and hocks (4) under the belly (5) and between the fore legs and thighs. Blood view in the hock region should be bend into the rear leg while CLIPPING.

41.

How long is a dairy cow’s gestation period?(a) approximately 50 days(b) approximately 100 days(c) approximately 250 days(d) approximately 280 daysThe question was asked in examination.My question is based upon Cows in Dairy in portion Building Blocks of Dairy Processing of Dairy Engineering

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42.

Which vitamin keeps eye and body cell linings healthy and working?(a) vitamin D(b) vitamin C(c) vitamin K(d) vitamin AThis question was addressed to me during an interview.I'm obligated to ask this question of Cows in Dairy in division Building Blocks of Dairy Processing of Dairy Engineering

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The CORRECT choice is (d) vitamin A

Easiest explanation: Vitamin A helps form and maintains healthy skin, teeth, skeletal and soft TISSUE, mucus membranes, and skin. It is also known as RETINOL because it PRODUCES the pigments in the retina of the eye. Vitamin A promotes good vision, especially in low light.

43.

What is the process called whereby milk is heated to a high temperature?(a) freezing(b) chilling(c) pasteurization(d) vacuum treatmentThis question was addressed to me by my school principal while I was bunking the class.I need to ask this question from Cows in Dairy in division Building Blocks of Dairy Processing of Dairy Engineering

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44.

What two colors is the Holstein breed?(a) grey and white(b) brown and black(c) black and white(d) white and brownThis question was addressed to me at a job interview.I'm obligated to ask this question of Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right answer is (C) black and white

For explanation: Holsteins are big, stylish ANIMALS with color patterns of black and white. A healthy Holstein calf weighs 90 pounds or more at BIRTH. A MATURE Holstein cow weighs about 1500 pounds and STANDS 58 inches tall at the shoulder.

45.

What breed of dairy cow came to the United States from Holland?(a) Holstein(b) Brown Swiss(c) Arya(d) jerseyThis question was posed to me in an online quiz.Asked question is from Cows in Dairy in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer»

The correct answer is (a) Holstein

Explanation: The Holstein COW originated in Europe. The major historical development of this breed occurred in what is now the Netherlands and more specifically in the two northern provinces of North Holland and Friesland which LAY on EITHER side of the Zuider ZEE.

46.

The time between conception and parturition is called ______(a) reproduction period(b) gestation period(c) feed period(d) pregnancyThis question was addressed to me in exam.I need to ask this question from Cows in Dairy topic in section Building Blocks of Dairy Processing of Dairy Engineering

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Correct option is (b) GESTATION period

For explanation: Gestation length varies by age of dam, breed, and sex of the calf. Gestation length RANGES from 279 to 287 days. For most breeds, 283 days is COMMON. Cows having bull calves tend to have a slightly LONGER gestation compared to cows having heifer calves.

47.

What is the nutrient that eventually becomes part of muscle, bone and blood?(a) protein(b) carbohydrate(c) mineral(d) antibodiesThis question was posed to me by my college professor while I was bunking the class.This intriguing question originated from Cows in Dairy topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer» RIGHT option is (a) protein

To elaborate: Proteins are the building BLOCKS of a body. Protein consumption end up being a PART of MUSCLE, bone and blood.
48.

One group of mammals eats meat and are called carnivores. What is the group that eats grass and grains called?(a) omnivore(b) autotrophs(c) carnivore(d) herbivoreThis question was posed to me in an interview for job.The query is from Cows in Dairy in section Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Correct answer is (d) herbivore

Explanation: cows are animal which doesn’t EAT meat. They SURVIVE on GRASS and feed. They are CALLED HERBIVORES.

49.

What special ingredient in colostrums helps fight infection and disease in the newborn calf?(a) protein(b) carbohydrate(c) ammonia(d) antibodiesI got this question in a job interview.The origin of the question is Cows in Dairy topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer»

Right option is (d) antibodies

To explain I would say: Most species will generate colostrum just prior to giving BIRTH. Colostrum contains antibodies to PROTECT the NEWBORN against DISEASE.

50.

What is a male dairy animal called?(a) cow(b) vache(c) moose(d) bullThis question was posed to me in a national level competition.The question is from Cows in Dairy topic in chapter Building Blocks of Dairy Processing of Dairy Engineering

Answer» RIGHT option is (d) bull

For explanation I would SAY: A bull is an intact (i.e., not castrated) adult male of the species BOS taurus (cattle). It is the male DAIRY animal.