Dairy Extension Officer Questions and Answers

Question1:-Sterilization of packaging film used for UHT milk can be done by use of

 A:-Hydrogen cyanide

 B:-Hypochlorite solution

 C:-Potassium permanganate

 D:-Hydrogen peroxide

 Correct Answer:- Option-D

Question2:-The purpose of Tri-purpose or Tri-process cream separator is

 A:-Separation of milk

 B:-Clarification of milk

 C:-Standardization of milk

 D:-All the above

 Correct Answer:- Option-D

Question3:-When milk is offered for sale without indication of any class, standards applied are that of

 A:-Cow milk

 B:-Buffalo milk

 C:-Std milk

 D:-Mixed milk

 Correct Answer:- Option-B

Dairy Extension Officer  Questions and Answers

Question4:-Human milk is devoid of the following constituent


 B:-Proteose peptone


 D:-κ- casein

 Correct Answer:- Option-C

Question5:-'Recknagel phenomena' is related to the following:

 A:-Increase in the density of milk upon warm storage

 B:-Increase in the oxidative reaction of milk upon warm storage

 C:-Increase in the density of raw milk upon cold storage

 D:-Increase in the viscosity of milk upon cold storage

 Correct Answer:- Option-C

Question6:-As compared to the pasteurized milk, the UHT milk would be





 Correct Answer:- Option-B

Question7:-Methylene blue reduction test measures

 A:-Bacterial load of milk

 B:-Sourness of milk

 C:-Alkalinity of milk

 D:-Minerals in milk

 Correct Answer:- Option-A

Question8:-The second stage of a two-stage homogenizer is used to:

 A:-Break down the fat globule size to < 2μm those which could not be broken by the first stage pressure

 B:-Separating out the clusters of fat globules that are created after the first stage of homogenizer

 C:-Break down the fat globule size still smaller size (<1 μm) than what was obtained through use of first stage pressure

 D:-Separating out the clusters of fat globules that are cretaed after the second stage of homogenizer

 Correct Answer:- Option-B

Question9:-A'Milk clarifier ‘does not remove the following from raw milk:




 D:-Dust and dirt

 Correct Answer:- Option-B

Question10:-A technique wherein commercially thermally sterilized milk is packaged into previously sterilized containers under sterile conditions to produce shelf-stable products that do not need refrigeration

 A:-Aseptic processing

 B:-Active packaging

 C:-Intelligent packaging

 D:-Edible packaging

 Correct Answer:- Option-A

Question11:-Test performed to check quality of milk on raw milk Reception Dock are termed as

 A:-Physical tests

 B:-Chemical tests

 C:-Platform tests

 D:-Physiochemical test

 Correct Answer:- Option-C

Question12:-A process of separation of microbes from milk by centrifugal action is





 Correct Answer:- Option-C

Question13:-The milk in which milk fat replace vegetable fat

 A:-Toned milk

 B:-Synthetic milk

 C:-Designer milk

 D:-Filled milk

 Correct Answer:- Option-D

Question14:-Cow milk fat appears yellow due to the presence of




 D:-Ascorbic acid

 Correct Answer:- Option-A

Question15:-The selection of detergents to be employed for cleaning of dairy plants would not be depended on Chlorine compound

 A:-Type of Soil

 B:-Type of the surface

 C:-Concentration of soil

 D:-None of the above

 Correct Answer:- Option-D

Question16:-Buffalo milk is found suitable for manufacture of following dairy products:

 A:-Rasogolla and Cheddar cheese

 B:-Evaporated milk and sterilized cream

 C:-Mozzarella cheese and paneer

 D:-All of the above

 Correct Answer:- Option-C

Question17:-Browning discolouration in evaporated milk may be due to

 A:-Excessively high heat treatment during sterilization

 B:-Storage at high temperature

 C:-Long storage

 D:-All of the above

 Correct Answer:- Option-D

Question18:-The major flavouring compound in yoghurt is




 D:-Acetyl Methyl Carbinol

 Correct Answer:- Option-C

Question19:-In a two-stage drying system, the moisture content of power leaving the spray dryer (first stage) is

 A:-2-3% higher than the final moisture content desired

 B:-Exactly the same moisture as desired in final product

 C:-6-7% higher than the final moisture content desire

 D:-None of the above

 Correct Answer:- Option-A

Question20:-A ghee sample testing positive Boudouin test might have been adulterated using the following


 B:-Palm oil

 C:-Argemone oil

 D:-Hydrogenated vegetable fat

 Correct Answer:- Option-D

Question21:-The overrun in ice cream is indicated by

 A:-Ammeter reading in the freezer

 B:-Weight/litre of ice cream

 C:-Whipping time in freezer

 D:-Weight/litre of ice cream mix

 Correct Answer:- Option-D

Question22:-Shrikhand is a milk product produced by:

 A:-Heat coagulation

 B:-Acid coagulation

 C:-Heat and acid coagulation

 D:-None from these

 Correct Answer:- Option-B

Question23:-Danedar Khoa is used for making




 D:-None of the above

 Correct Answer:- Option-C

Question24:-Which of the following product is made originally with khoa and maida


 B:-Gulab jamun



 Correct Answer:- Option-B

Question25:-The intermediate product for makkhan is





 Correct Answer:- Option-A

Question26:-Khurchan is

 A:-Heat desiccated product

 B:-Heat and acid coagulated product

 C:-Fermented product

 D:-Cereal based product

 Correct Answer:- Option-A

Question27:-The treatment that will not lead to improvement in the spreadability of resultant Table butter

 A:-Alnarp process

 B:-Reworking of butter

 C:-Use of fractionated milk fat having greater proportion of low and medium melting fats

 D:-Ripening of cream with starter culture

 Correct Answer:- Option-D

Question28:-Co-precipitates are normally prepared by combination of

 A:-Acid, Heat and calcium

 B:-Akali, Heat and Calcium

 C:-Acid, Cold and Calcium

 D:-Acid, Heat and Sodium

 Correct Answer:- Option-A

Question29:-Which of the following products is consider as both by-products as well as main products


 B:-Skim milk



 Correct Answer:- Option-B

Question30:-A delicious south Indian pudding made with vermicelli, sugar, ghee, milk, nuts and raisins vermicelli is known as


 B:-Channa podo



 Correct Answer:- Option-A

Question31:-Which of the following type of cream separator is called paring disc separator?

 A:-Open type

 B:-Semi-open type


 D:-All of above

 Correct Answer:- Option-B

Question32:-In milk pasteurization the segregation of pasteurized milk is ensured by

 A:-Holding tube

 B:-Re-generation - I

 C:-Flow diversion valve

 D:-None of above

 Correct Answer:- Option-C

Question33:-In which of the following refrigeration system, vapour alternately undergoes change of phase from vapour to liquid and liquid to vapour during completion of cycle

 A:-Vapour compression refrigeration


 C:-Air cycle refrigeration

 D:-Steam jet refrigeration

 Correct Answer:- Option-A

Question34:-If the total area of equipments to be installed in RMRD is 500 sqm, then the approximate area of RMRD section will be

 A:-2500 sqm

 B:-2000 sqm

 C:-1500 sqm

 D:-1000 sqm

 Correct Answer:- Option-A

Question35:-Circulation of acid must be included in the circuits of ____________ CIP

 A:-Cold surface

 B:-Hot surface

 C:-Both (1) and (2)

 D:-None of the above

 Correct Answer:- Option-B

Question36:-The objective of extension education is to raise the standard of living of ____________ people by helping them in using their natural resources



 C:-Urban and Rural

 D:-All of these

 Correct Answer:- Option-B

Question37:-Operation flood programme launched in the year ________





 Correct Answer:- Option-A

Question38:-___________ is the first step in extension teaching





 Correct Answer:- Option-A

Question39:-__________ is a way of showing people the value of improved practices by comparing the improved and old practices

 A:-Method demonstration

 B:-Result demonstration


 D:-None of these

 Correct Answer:- Option-B

Question40:-____________ are instructional devices which are used to communicate massage more effectively through sound and visuals

 A:-Audio aids

 B:-Visuals aids

 C:-Audio visuals aids

 D:-All of these

 Correct Answer:- Option-C

Question41:-______ is the process by which an innovation is communicated through certain channels over time among the members of a social system




 D:-All of these

 Correct Answer:- Option-B

Question42:-______ adapt a new idea much ahead of others members in the community


 B:-Early adapters


 D:-All of these

 Correct Answer:- Option-C

Question43:-Agricultural Technology Management Agency (ATMA) scheme was launched in __________





 Correct Answer:- Option-A

Question44:-________ is a specification of work to be done or procedures to be followed in order to accomplish a particular objectives



 C:-Plan of work


 Correct Answer:- Option-D

Question46:-Systematic name of lactose is __________

 A:-β-o-D-galactopyranosyl - (1-4)-α-D-glucopyranose(α-lactose)

 B:-β-o-D-galactopyranosyl - (1-4)-β-D-glucopyranose(β-lactose)


 D:-None of the above

 Correct Answer:- Option-C

Question47:-The last milk during milking contains the higher percentage of fat is also known as


 B:-Fore milk

 C:-Hind milk

 D:-None of these

 Correct Answer:- Option-A

Question48:-R.M. value is quite significant Since it is primarily a measure of

 A:-Butyric acid and Caproic acid

 B:-Caprylic acid and Caproic acid

 C:-Both of above

 D:-None of these

 Correct Answer:- Option-A

Question49:-Denaturation of whey protein plays important role in development of

 A:-Tallow flavour

 B:-Cooked flavour

 C:-Sour flavour

 D:-Bitter flavour

 Correct Answer:- Option-B

Question50:-Which of the following is not associated with Maillard browning

 A:-Schiff's base

 B:-Strecker degradation

 C:-Amadori compound


 Correct Answer:- Option-D

Question51:-Immunological and biochemical studies have shown that two of the principle proteins in the MFGM are__________

 A:-Butyrophilin, Xanthinexidase

 B:-Lipase, Plasmin

 C:-Alkaline phosphatase, Peroxidase

 D:-Acid Phosphatase, Catalase

 Correct Answer:- Option-A

Question52:-Heat coagulation of milk is caused chiefly by

 A:-De-stabilization of milk proteins

 B:-Denaturation of milk proteins

 C:-De-stabilization of milk lipids

 D:-Stabilization of milk proteins

 Correct Answer:- Option-A

Question53:-AGMARK standards for free fatty acid (% oteic acid) for special grade Agmark Red lebels and General grade Agmark green labels are

 A:-NMT 1.4 and NMT 2.5

 B:-NMT 1.8 and NMT 2.8

 C:-NMT 2.0 and NMT 3.0

 D:-None of above

 Correct Answer:- Option-A

Question54:-Diacetyl is obtained from its mother componant





 Correct Answer:- Option-B

Question55:-Which of the following process does not occur during ageing of ice-cream ________

 A:-De-sorption of proteins

 B:-Complete hydration

 C:-Crystallization of fat

 D:-Building of structure

 Correct Answer:- Option-D

Question56:-Solid chlorine available as bleaching powder, a chemical sanitizer in market is chemically

 A:-Sodium hypochlorite

 B:-Chlorine dioxide

 C:-Calcium Hypochlorite

 D:-Chloramine T

 Correct Answer:- Option-C

Question57:-The sterility of cans is assessed by the method called



 C:-Surface agar technique

 D:-Moseley test

 Correct Answer:- Option-B

Question58:-In order to assess the efficiency of Phenol disinfectants the test is called

 A:-Rideal Walker test

 B:-Suspension test

 C:-Capacity test

 D:-Surface method

 Correct Answer:- Option-A

Question59:-ISO22000:2015 is

 A:-Quality Management System

 B:-Food Safety Management System

 C:-Good Manufacturing Practices

 D:-Good Hygienic system

 Correct Answer:- Option-B

Question60:-BIS for milk and milk products is considered as

 A:-Mandatory Standard

 B:-Not required

 C:-Voluntary Standard

 D:-Not considered

 Correct Answer:- Option-C

Question61:-As per central pollution board of India, Biological oxygen Demand of treated sewage should be

 A:-Less than 35 mg/l

 B:-Less than 25 mg/l

 C:-Less than 20 mg/l

 D:-Less than 10 mg/l

 Correct Answer:- Option-D

Question62:-The Subsidiary of FAO and WHO is

 A:-Codex Alimentarias




 Correct Answer:- Option-A

Question63:-Expand MSDS in pest control

 A:-Matter Safety Determination Sheet

 B:-Material Safety Determination Space

 C:-Matter Safety Data Sheet

 D:-Material Safety Data Sheet

 Correct Answer:- Option-D

Question64:-Small 'm' in, microbiological standards in FSSAR for milk and milk products means



 C:-Acceptable level

 D:-Specified level

 Correct Answer:- Option-C

Question65:-The rapid test method to detect antibiotic and pesticide residues in milk is through

 A:-Disc assay method

 B:-Charm test

 C:-Diffusion assay method

 D:-Impedance method

 Correct Answer:- Option-B

Question66:-Major causative organism of mastitis in milch animal is

 A:-Staphylococcus epidermidis

 B:-Streptococcus agalactiae

 C:-Streptococcus uberis

 D:-Enterobacter aerogenes

 Correct Answer:- Option-B

Question67:-The acceptable limit of residual chlorine in potable water should be

 A:-0.2 mg/l

 B:-2 mg/l

 C:-20 mg/l

 D:-200 mg/l

 Correct Answer:- Option-A

Question68:-The most germicidal wave length of UV radiation used in water purification is

 A:-270 nm

 B:-268 nm

 C:-260 nm

 D:-254 nm

 Correct Answer:- Option-D

Question69:-Bitty cream is caused by the growth of

 A:-Bacillus subtilis

 B:-bacillus cereus

 C:-Escherichia coli

 D:-Streptococcus pyogenes

 Correct Answer:- Option-B

Question70:-Mastitic milk has predomination of enzyme





 Correct Answer:- Option-A

Question71:-Iron binding protein that acts as a natural antibacterial system in raw milk is


 B:-Lactoperoxidase system

 C:-Bifidus factor


 Correct Answer:- Option-D

Question72:-Early gas producer in milk is due to


 B:-Bacillus spp



 Correct Answer:- Option-A

Question73:-Extracellular hydrolytic proteinase is produced in refrigerated milk from major psychrotrophic bacterium





 Correct Answer:- Option-A

Question74:-The most heat resistant index organism of pasteurization is

 A:-Mycobacterium tuberculosis

 B:-Coxiella burnetii

 C:-Escherichia coli

 D:-Listeria Monocytogenes

 Correct Answer:- Option-B

Question75:-Bactofugation is combination of centrifugation and pasteurization to avoid

 A:-Bacterial count

 B:-Aerobic spore count

 C:-Anaerobic count

 D:-Coliform count

 Correct Answer:- Option-C

Question80:-The method of mating between individuals which are more closely related, such as brothers and sisters and of sires with daughters is called



 C:-Both 1 and 2


 Correct Answer:- Option-A

Question81:-Which of the following statement is/are correct about,

Statement : The limitations of individual selection of dairy animals are

a. Some important traits like milk production, maternal abilities in cows are expressed only in females

b. The performance records for milk and other maternal qualities are available only after sexual maturity of cows

 A:-Only a

 B:-Only b

 C:-Both a and b

 D:-None of these

 Correct Answer:- Option-C

Question82:-Chemicals like _________ is/are commonly used and available in form of sticks, paste

 A:-Caustic soda (NaoH)

 B:-Caustic potash (KoH)

 C:-Both 1 and 2

 D:-None of these

 Correct Answer:- Option-C

Question83:-Which method that the animals are passed through the weighing yard and weighing is carried out on the platform balances. Allow the animal to stand on the platform before recording the weight

 A:-Direct method

 B:-Indirect method

 C:-Both 1 and 2

 D:-None of these

 Correct Answer:- Option-A

Question84:-Which of the following statement is/are correct about,

Statement: The management of the dry cow is aimed at

a. To give rest to cow's udder and recoup its condition lost in previous lactation

b. Repair and regeneration of secretary cells of udder

 A:-Only a

 B:-Only b

 C:-Both a and b

 D:-None of these

 Correct Answer:- Option-C

Question85:-On the milking system structure of cows, the two rear quarters are larger and produce ___________ percent of the milk whereas the fore quarters produce about _______ percent of the milk

 A:-40 and 60 percent

 B:-50 and 50 percent

 C:-60 and 40 percent

 D:-30 and 70 percent

 Correct Answer:- Option-C

Question86:-Which of the following statement is/are correct about

Statement: The best method as it causes minimum injuries to the teats. In this method removes milk quicker than stripping

because of no loss of time in changing the position of the hand. Even by efficient method of milking only 85% of milk comes

out from udder and 15% still remains in udder which is called residual milk

a. Stripping method

b. Full hand method

c. Knuckling method

 A:-Only a

 B:-Only b

 C:-Only c

 D:-Only a and b

 Correct Answer:- Option-D

Question87:-Who is the Queen of forages?





 Correct Answer:- Option-B

Question88:-Which of the following statement is/are correct about

Statement: The right recommended stage of harvest of forage crops are

A. Forage Crop B. Stage of Harvest

i. Maize, Bajra, Sorghum Dough Stage

ii. Cowpea 70% flowering

iii. Oat Boot to dough stage

iv. Grasses early flowering

 A:-Only i, ii and iii

 B:-Only ii and iii

 C:-Only i, iii and iv

 D:-Only i, ii, iii and iv

 Correct Answer:- Option-C

Question93:-Which of the following statement is/are correct about,

Statement : The characteristics of fodder crops are ___________

a. Quick regrowth and short duration

b. Profuse foliage and heavy yield of fodders

c. Should have non-high palatability and non-nutritive value

 A:-Only a, b and c

 B:-Only a and b

 C:-Only a and c

 D:-Only c

 Correct Answer:- Option-B

Question94:-The superior hybrids varieties are Pusa Giant, NB 21, NB 37, IGFRI 5, IGFRI 7 and IGFRI 10 developed in which institute

 A:-Indian Grassland Research Institurte, Jhansi

 B:-Tamil Nadu Agricultural University, Coimbatore

 C:-Both 1 and 2

 D:-None of these

 Correct Answer:- Option-A

Question95:-Cowpea and maize are ___________ crop

 A:-Annual Crop


 C:-Perennial Crop

 D:-None of these

 Correct Answer:- Option-A

Question96:-Who is the fast-spreading fodder tree which produces enormous seeds?



 C:-Agathi (Sesbania)

 D:-All of these

 Correct Answer:- Option-B

Question97:-Who is adapted to tropical climates and tolerant to low fertility, drought, acidic soils and poor drainage? Also, drought-resistant legumes are coming up well in areas receiving a minimum rainfall of 450-840 mm annually


 B:-Desmanthus-hedge lucerne



 Correct Answer:- Option-D

Question98:-The preservation of conserving the seasonal excess of green fodder method is


 B:-Hay Making

 C:-Both 1 and 2

 D:-None of these

 Correct Answer:- Option-C

Question99:-Forces air batch type hay drier has a capacity of 1 ton/day and cost works out to Rs. 60 per tonne of dry hay, which is developed in this types of hey drier

 A:-Indian Grassland Research Institute, Jhansi

 B:-Tamil Nadu Agricultural University, Coimbatore

 C:-Central Institute of Agricultural Engineering, Bhopal

 D:-Indian Veterinary Research Institute, Bengaluru

 Correct Answer:- Option-A

Question100:-Which of the following statement is/are correct about,

Statement - The hay was depending on the various ways of processing. What are the right ways of hay making/processing into the following categories?

a. Jungle hay

b. Sundried hay

c. Barn dried hay

d. Dehydrated fodders

 A:-Only a and b

 B:-Only a, c and d

 C:-Only b and c

 D:-All a, b and c, d

 Correct Answer:- Option-D

Post a Comment

Previous Post Next Post