Dairy Extension Officer – Dairy Development Department
PROVISIONAL ANSWER KEY
Question Paper Code: 18/2023/OL
Category Code: 008/2021
Exam: Dairy Extension Officer
Medium of Question: English
Date of Test 31-01-2023
Department Dairy Development
Alphacode A
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
Question4:-Human milk is devoid of the following constituent
A:-α-lactalbumin
B:-Proteose peptone
C:-β-lactoglobulin
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
A:-Brownish
B:-Whiter
C:-Darker
D:-Yellowish
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:
A:-Leucocyte
B:-Fiber
C:-Bacteria
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
A:-Clarification
B:-Filtration
C:-Bactofugation
D:-Separation
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
A:-Carotene
B:-Annatto
C:-Riboflavin
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
A:-Diacetyl
B:-Acetoin
C:-Acetaldehyde
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
A:-Lard
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
A:-Peda
B:-Gulabjamun
C:-Kalakand
D:-None of the above
Correct Answer:- Option-C
Question24:-Which of the following product is made originally with khoa and maida
A:-Sandesh
B:-Gulab jamun
C:-Rasmalai
D:-Rasogolla
Correct Answer:- Option-B
Question25:-The intermediate product for makkhan is
A:-Curd
B:-Cream
C:-Ghee
D:-Khoa
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
A:-Paneer
B:-Skim milk
C:-Cream
D:-Butter
Correct Answer:- Option-B
Question30:-A delicious south Indian pudding made with vermicelli, sugar, ghee, milk, nuts and raisins vermicelli is known as
A:-Payasam
B:-Channa podo
C:-Karahi
D:-Kunda
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
C:-Hermetic
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
B:-Ice-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
A:-Urban
B:-Rural
C:-Urban and Rural
D:-All of these
Correct Answer:- Option-B
Question37:-Operation flood programme launched in the year ________
A:-1970
B:-1972
C:-1975
D:-1977
Correct Answer:- Option-A
Question38:-___________ is the first step in extension teaching
A:-Attention
B:-Interest
C:-Conviction
D:-Action
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
C:-Planning
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
A:-Innovation
B:-Diffusion
C:-Adaption
D:-All of these
Correct Answer:- Option-B
Question42:-______ adapt a new idea much ahead of others members in the community
A:-Laggards
B:-Early adapters
C:-Innovators
D:-All of these
Correct Answer:- Option-C
Question43:-Agricultural Technology Management Agency (ATMA) scheme was launched in __________
A:-2005
B:-2006
C:-2007
D:-2008
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
A:-Plan
B:-Solution
C:-Plan of work
D:-Project
Correct Answer:- Option-D
Question45:-Milk production of Kerala state for the year 2020-21 was _______ Lakh Metric Tonnes
A:-20.45
B:-23.89
C:-25.42
D:-30.67
Correct Answer:- Option-C
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)
C:-Both
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
A:-Strippings
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
D:-Gelation
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
A:-Propane
B:-Citrate
C:-Acetate
D:-Lactate
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
A:-Swabbing
B:-Rinsing
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
B:-UNO
C:-UNICEF
D:-IDF
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
A:-Minimum
B:-Maximum
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
A:-catalase
B:-Proteinase
C:-Lipase
D:-Phospholipase
Correct Answer:- Option-A
Question71:-Iron binding protein that acts as a natural antibacterial system in raw milk is
A:-Lactanin
B:-Lactoperoxidase system
C:-Bifidus factor
D:-Lactoferrin
Correct Answer:- Option-D
Question72:-Early gas producer in milk is due to
A:-Coliforms
B:-Bacillus spp
C:-Streptococci
D:-Staphylococci
Correct Answer:- Option-A
Question73:-Extracellular hydrolytic proteinase is produced in refrigerated milk from major psychrotrophic bacterium
A:-Paseudomonas
B:-Lactococci
C:-Enterobacter
D:-Citrobacter
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
Question76:-The Kerala Co-operative societies Act came into existence on
A:-15th May 1996
B:-15th May 1966
C:-15th May 1969
D:-15th May 1960
Correct Answer:- Option-C
Question77:-According to Livestock census: 2019, the two-third of dairy animals are available in ________ districts in Kerala state.
A:-Available in 6 districts
B:-Available in 7 districts
C:-Available in 8 districts
D:-Available in 9 districts
Correct Answer:- Option-B
Question78:-The total requirement of milk in Kerala in 2019-20 was 33.22 lakh MT, but
a. The supply was only 25.42 lakh MT
b. The supply was only 30.42 lakh MT
c. A deficiency of 4.65 lakh MT milk
d. A deficiency of 5.65 lakh MT milk
A:-Only a
B:-Only a and c
C:-Only b and c
D:-Only b and d
Correct Answer:- Option-B
Question79:-For the year 2021-22, as per the Kerala State Budget Provisions, it has been proposed to undertake fodder development activities for Rs. ___________ Lakh in the state
A:-Rs. 460 lakh
B:-Rs. 560 lakh
C:-Rs. 660 lakh
D:-Rs. 760 lakh
Correct Answer:- Option-D
Question80:-The method of mating between individuals which are more closely related, such as brothers and sisters and of sires with daughters is called
A:-Inbreeding
B:-Outbreeding
C:-Both 1 and 2
D:-Crossbreeding
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?
A:-Stylo
B:-Lucerne
C:-Cowpea/Lobia
D:-Desmanthus
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
Question89:-The ______________ committee constituted to Review the Arrangements for Institutional credit for Agriculture and Rural Development in 1981, recommended the establishment of NABARD.
A:-Sivaraman
B:-Sir Maclagan
C:-Khusro
D:-Brahm Prakash
Correct Answer:- Option-A
Question90:-NCUI is
A:-National Cooperative Union of India
B:-Natural Coir Union of India
C:-National Coir Union of India
D:-National Commission for Universities in India
Correct Answer:- Option-A
Question91:-MATSYAFED refers to
A:-Kerala State Cooperative Federation for Fisheries Development Ltd
B:-Agency for Development of Aquaculture, Kerala
C:-Kerala Fishermen’s Welfare Fund
D:-Fish Farmers Development Agency
Correct Answer:- Option-A
Question92:-Kerala Co-operative Milk Marketing Federation (KCMMF), popularly called ‘MILMA’ was established in _________
A:-January, 1950
B:-April, 1970
C:-April, 1980
D:-November, 1980
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
B:-Biennials
C:-Perennial Crop
D:-None of these
Correct Answer:- Option-A
Question96:-Who is the fast-spreading fodder tree which produces enormous seeds?
A:-Glyricidia
B:-Subabul
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
A:-Cowpea/Lobia
B:-Desmanthus-hedge lucerne
C:-Lucerne
D:-Stylo
Correct Answer:- Option-D
Question98:-The preservation of conserving the seasonal excess of green fodder method is
A:-Silage/Ensiling
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
