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DAIRY ENGINEERING

 

DAIRY PLANT DESIGN AND LAYOUT

Compiled By: - Mr. Shubham Kapoor

 

Q.1: Ideally at what temperature, the milk should be chilled within two hours of milking?

A:     Below 4°C

 

Q.2: In feeder dairies the milk is received usually in?

A:both cans as well as in tankers

 

Q.3: The capacity of the medium sized dairy plant ranges from

A:  20,000 lit to 1, 00,000 liters of milk handling per day

 

Q.4: Where does the fluid milk plant should be located?

A:   close to milk consumption area

 

Q.5 Which type of pipelines are used for distribution of water in dairy plant?

A: Galvanized iron

 

Q6: Horizontal milk storage tank having 20,000 lit. Capacity requires approx. area of -----?

A: 3.5 m x 7 m

 

Q7: The hardness of the water used in the dairy plant should be maintained below

A: 35ppm

 

Q8: How much steam a powder plant requires approx. per kg powder?

A: 5 kg steam per kg powder

 

Q9: How much % (approx.) of the electricity load does refrigeration plant of dairy contributes?

A:  40 to 50 % of total electricity load

 

Q.10: What is the usage ratio of milk: water for mutli-product dairy plant ?

A:    1: 1.5

 

Q.11: For long distance transportation of milk, which mode of transportation is cheaper?

A: Rail Tankers

 

Q: 12 For Small dairy plants, how many storey building is preferable ?

A:     Single storey

 

Q: 13 what is the capacity of the small sized dairy plant?

A:< 10,000 LITRES/DAY

 

Q.14: Ice bank tank is which type of refrigeration system (Direct/Indirect)?

A:      Indirect refrigeration system

 

Q.15 what does the Primary sections in a dairy plant means?

A:      Milk reception and milk treatment

 

Q.16:   what does the secondary sections in a dairy plant means?

A:      Sections not directly connected with milk

 

Q.17:  In dairy plant, safe materials are colored with?

A.   Green Colour

 

Q.18:   With what color, Insulated steam pipelines in the dairy plant are painted with?

A:    yellow Colour

 

Q.19:   Location where can washer must be installed in dairy plant?

A.   Raw milk reception dock (RMRD)

 

Q.20 which is the most widely used conveyor in the dairy plant?

A.     chain conveyor

 

Q.21 ______ is used for large storage of milk?

A. Silos are used

 

Q.22   Which shaped layout should be preferred in a single storey dairy building?

A.       L- shape layout

 

Q.23 What should be the approx. area for the process room?

A.       It should be 5 times the area of equipments.

 

Q.24 for Small Creamery dairies, which type of layout, is preferred?

A.   Straight line layout is preferred

 

Q.25 _______concept which  allows easy future expansion of dairy building?

A.  Single storey plant with super structure

 

Q26. What is the Full form of IPEM?

A.       Integrated Project Engineering Methods

B.         

Q.27 The Gujarat based dairy major “Anand pattern follows ____ system?

A.  Three tier system

 

Q.28 The optimum distance for which rail tankers are preferred?

A.    1000 Km or more

 

Q.29 What should be the height suitable for RMRD to receive milk?

A.   Usually 1.5 m above the ground

 

Q.30   Capacity of weigh bowl should be able to weigh at least how much cans?

A.At least 4 cans

 

Q.31   _______ is the first decision in the implementation of a project of a dairy plant?

A.  Determination of Location

 

Q.32 ________ is the place, within a selected location, where building is to be constructed.

A. Site

 

Q.33 The term implied to Area, Region or Territory for a dairy plant?

A. Location

 

Q.34    ___ Type chiller is usually used for chilling milk to 4C?

A.Plate chiller

 

Q.35 Where space is available, _____ storey building is mostly suited?

A.Single storey

 

Q.36 The process of reducing the moisture of wood is called?

A.  Seasoning

 

Q.37 Boiler section comes under which section in a dairy plant?

A.   Utility Section

 

Q.38 In a large cheese processing plant it is advisable to have ____ type of arrangement?

A. vertical

 

Q.39 For concrete specification, 1:2:3 means?

A.Cement:sand: gravel

 

Q.40 Services of a plant includes _____ section?

A. Administrative section

 

Q.41 Keeping in view the highway-widening project, plant building should be recommended to be located _____ m away from the highway?

A. about 45 m back from highway

 

Q.42 Estimated _____ % of the milk produced in India is being processed by organized dairy plants?

A. 20-25 %

 

Q.43 ________ is the way of proceeding or scheme of arrangement for executing any work or project?

A. Planning

 

Q.44  ______ is one of the important activity of planning, before diverting milk to different section for product manufacturing?

A.  Process schedule

 

Q.45 Ideally, the milk should be chilled to 4°C within ____ hours after milking?

A. 2-3 hours

 

Q.46 If plant is generating electricity, the power house should then be located close to ___ for supervisory reasons.

A.  Boiler house

 

Q.47 Three main sections of Workshops, which will carry out routine repair and maintenance work of dairy plant are?

A. Electrical, Mechanical and Civil work section

 

Q.48 The term used for proper placing of service sections providing auxiliary services such as steam, refrigeration and electricity to the dairy plant is?

A. Siting of auxiliary services

 

Q.49 Requirement to study the layouts carefully and then add missing sections linking them logically, keeping in view planning and principles of dairy layout for ____ problem?

A.Missing-view problems

 

Q.50 Colour code used for fire controlled equipments in a dairy industry?

A. Red colour

 

Q. 51 Colour code used for protective material piped through the plant to minimize hazards of dangerous material in a dairy industry?

A. Blue colour

 

Q.52 Piping supports in plant should be placed at a distance of about ?

A.     3 meters or about 10 ft.

 

Q.53 _____ are those equipment which are not directly related to milk such as boilers, compressors, condensers and workshop equipment.

A. Secondary equipment

 

Q.54 A minimum clearance of ______ above the highest milk tanker should be allowed for cleaning spray head and balancer.

A. 5 ft (152 cm)

 

Q.55 For fast/quick drainage, the floor at rear of the truck should slope _____ ?

A.   ¾” per ft (1.9cm/30cm)

 

Q.56 ______ is used so that any droplet left from the can again goes back to weight tank?

A.  Drip saver

 

Q.57 Tank trucks which are to be spray cleaned should be pitched at _____from front to rear to provide for efficient high speed unloading and cleaning operations.

A. ¼ inch per foot

 

Q.58 Curing period for Portland cement is in the range of

A. 7 to 14 days

 

Q.59  In cement concrete the water to cement ratio should be

A. 0.45 to 0.55

 

Q.60 Mortar made using normal cement should be used within

A. 30 min.

 

Q.61 The major constituent of Portland cement is

A. Lime

 

Q.62 Teak wood is an example of (hard/soft wood)?

A. Hard wood

 

Q.63 The specific gravity of good stone should not be less than

A. 2.7

 

Q.64  In which of the  section, the use of metal grill tiles is recommended?

A. Reception dock

 

Q.65 The ratio of cement: sand used for bedding mortar for flooring is

A. 1:3

 

Q.66 The thickness of the plate used for metal tiles on RMRD of dairies is

A. 10 gauge

 

Q.67 High alumina cement concrete resists acid solutionupto:

A.Above pH 5.0

 

Q.68 The floating coat of the plaster on wall is of ___ thickness?

A. 1.5 to 2.0 cm thick

 

Q.69 Total window area should be allocated

A. 20-25% of floor area

 

Q.70 ____ has degree of density, which permits moisture absorption of 0.5 to 3.0 % ?

A. Vitreous tiles

 

Q.71 The recommended slopes in floor towards drain for processing room is

A. 0.25 inch per foot

 

Q.72 ____ types of pipes should be used for  underground severs ?

A.  Cast iron pipe should be used

 

Q.73 The minimum reflectance of ceiling should be

A. 75%

 

Q.74 Illumination refers to energy radiated in the visible spectrum from _____ micron wave length?

A. 0.38 to 0.70

 

Q.75 ______ number of air changes when ventilation is used

A.   10-15

 

Q.76 For human comfort, _____ R.H/Temp combination is recommended?

A. 60-65% RH at 20-22°C is suitable

 

Q.77 Amount of fresh air per minute required for each individual for optimum wellbeingis?

A. 0.5-0.75 m3

 

Q.78 MCC stands for

A. Motor control circuit

 

Q.79 Colour coding guidelines given by?

A.  ASME (American society for mechanical engineers

 

Q.80 Minimum requirement of linear velocity for just proper CIP to take place?

A. 1.5 m/s

 

Q.81 Ordinary Cement was invented by?

A. Joseph Aspdin in England (1824)

 

Q.82 As per BIS, minimum crushing strength of brick is

A. 3.50 N/mm2

 

Q.83 Major Constituent of a fire brick is?

A. Silica

 

Q.84 · ______ sand should pass through 7.62 mm opening (suitable for concrete work)

A. Graveled Sand

 

Q.85 Course sand should pass through _____ mm opening

A. 3.18 mm

 

Q.86 Addition of ____% of gypsum is added to the ordinary cement just to retard the setting action.

A. 3 to 4 %

 

Q.87 The paste prepared by adding required quantity of water to a mixture of binding material like cement and sand is known as ___?

A. Mortar

 

Q. 88 ______ is obtained from inferior quality wood after some processing, and it is used for making furniture

A.  Plywood

 

Q. 89 The alloy of steel containing iron-chromium-nickel is known as ______ ?

A.   Stainless steel

 

Q.90 _______ is a composite material, poured in place or precast, which is used for floor and wall treatments?

A. Terrazzo floor

 

Q.91 Plastering using cement to sand ratio of ______is used for surface finish of walls.

A. 1:2 or 1:3

 

 

 

 

References:

 1.  ICAR E-course 

 2. Previous year question papers

 3. NDRI class notes

 4. Wikipedia

 5. Agrimoon Quiz

 

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