ICAR AIEEA-PG: Dairy Science (group 16) and Dairy Technology (group 17) · India · NTA for ICAR
Original practice questions written to the published syllabus · not past papersPlanning a dairy plant from product mix to building: location, layout, equipment sizing, pressure vessels, costing and commissioning.
In the exams: ICAR AIEEA-PG group 17 Unit II (dairy plant layout and design, functional design, space requirement); ICAR AICE subject 38 Unit 5
ICAR AIEEA-PG — Dairy Technology (group 17), Unit II
Dairy plant layout and design, functional design and space requirement, sanitary equipment and plant hygiene. Expect questions on layout principles and flow patterns, location factors, the sequence of operations in milk and product sections, functional areas and their adjacencies, holding tube and regeneration, and simple capacity and tank-sizing calculations.
How our questions for ICAR AIEEA-PG spread across the units of Dairy Plant Design, Layout & Project Engineering. Difficulty: 25 easy, 35 medium, 8 hard.
| Process flow diagrams and mass balances | 8 | |
| Functional design and space requirements | 8 | |
| Layout of reception, processing, packing and storage areas | 8 | |
| Hygienic zoning and personnel flow | 8 | |
| Equipment sizing and selection | 8 | |
| Building, floors, drains and services | 8 | |
| Installation, commissioning and validation | 8 | |
| Plant location and site selection | 6 | |
| Product mix and capacity planning | 6 |
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
A plant must pasteurise 200,000 litres a day in 16 productive hours, and the designers add a 10 percent margin for growth. What pasteuriser capacity should be specified?
B. 13,750 litres per hour
Required rate = 200,000 ÷ 16 = 12,500 L/h; with a 10% margin, 12,500 × 1.1 = 13,750 L/h. 12,500 omits the margin; 8,333 divides by 24 hours instead of the productive hours; 11,250 subtracts the margin instead of adding it.
In steady continuous processing with no reaction, which statement of the mass balance is correct?
C. In equals out, in total and for each component
At steady state nothing accumulates, so inputs equal outputs both in total and component by component (fat, SNF, water) when no reaction creates or destroys them. Water lost in evaporation is itself an output stream.
What is a schedule of accommodation in functional design?
B. A list of every room with its area and needs
The schedule of accommodation lists each functional area with its floor area, height, environment, hygiene level, drainage and services. It is the brief for the architect and engineers, not a staffing or cleaning timetable.
Which pair of areas should a relationship chart mark as needing to be close in a liquid milk plant?
C. Filling room and cold store
Packed product should move directly from filling into the cold store. Chemicals must be kept away from exposed product, toilets must not open into production, and raw reception must be kept apart from filling to protect processed product.
Why must clear height be considered as carefully as floor area in a dairy processing hall?
B. Tall equipment, bowl removal and overhead pipe racks need vertical space
Silos, separators that need head room to lift the bowl, and pipe racks set the height, and powder plants need very tall buildings for driers. Higher ceilings usually increase the air volume to condition, and height rules vary by country.
Where should the milk testing laboratory be placed in relation to reception?
C. Next to it, so samples are tested before milk is accepted
Testing incoming milk before it is pumped into silos lets the plant reject unacceptable milk. A laboratory inside the filling room would bring raw samples into a high-hygiene area.
Which item is part of a tanker reception bay in a modern dairy plant?
B. A tanker cleaning station
Tankers are cleaned at the plant after unloading so they return clean to collection routes. Can tipping belongs to can reception, and churns and cold stores belong to other sections. The station cleans tankers after unloading so they leave clean.
Why should packaging materials be de-boxed in a separate area before entering production rooms?
D. Outer cartons carry dust and pests and should not enter clean areas
Outer cartons travel through warehouses and trucks and bring dust, insects and microorganisms. Removing them outside production protects clean areas. Legal weighing and warming are not the reason.
Why is a holding tube sized on the fastest particle rather than the mean velocity?
A. Every particle must be held for at least the full time
Flow is faster at the centre of the tube, so sizing on the mean would let the fastest milk pass in less than the required time. The design uses the maximum velocity, about 1.2 times the mean in turbulent flow and 2 times in laminar flow.
Which attack must a dairy processing floor resist that is less important in a dry warehouse?
A. Lactic acid from spilled milk, plus cleaning acids and alkalis
Spilled milk sours to lactic acid, and cleaning uses hot acids and alkalis with thermal shock, so floors need acid-resistant tiles or resistant resin systems.
Ten here, 68 in the app. The Laisha app has every practice question we have written to ICAR AIEEA-PG in this subject, marked as you go, with timed papers, a jump-to-unanswered list and a certificate when you pass at 70 per cent.
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