ASRB NET and ARS / SMS / STO recruitment · India · Agricultural Scientists Recruitment Board (ICAR)
Original practice questions written to the published syllabus · not past papersASRB NET and ARS / SMS / STO recruitment is a professional certification run by Agricultural Scientists Recruitment Board (ICAR), for candidates in India. NET: one paper of 150 objective questions at 1 mark each, 2 hours, -1/3 negative, online, English or Hindi, Master's level. ARS: qualifying prelims, then mains 240 and interview 60.
Official site: pw.live.
We have not been able to confirm these details against the exam body's own specification, so fees, dates and pass marks are left out on purpose. Check the current format, eligibility, fees and dates on the official site.
Making the best use of land, labour, capital and machinery on a farm: measuring efficiency, costing, planning and budgeting, and keeping records.
Our 20 ASRB NET and ARS / SMS / STO recruitment questions in this subject: 3 easy, 7 medium, 10 hard, across 13 units.
Choose an answer, then open the working. Each explanation says why the right answer is right and why the others are not.
These 10 were written to ASRB NET and ARS / SMS / STO recruitment and are not shown on any other exam's page.
The yield response of wheat to nitrogen is Y = 2000 + 30N − 0.1N² (Y in kg/ha, N in kg/ha). Nitrogen costs 18 currency units per kg and wheat sells at 20 per kg. What is the economic optimum dose of nitrogen?
D. 145.5 kg/ha
Set MPP = dY/dN = 30 − 0.2N equal to the price ratio Pn/Py = 18/20 = 0.9. So 0.2N = 30 − 0.9 = 29.1, N = 145.5 kg/ha. 150 kg/ha is the technical optimum (MPP = 0), which ignores the cost of nitrogen; 144.4 comes from inverting the price ratio (Py/Pn). 291 kg/ha drops the 2 from the derivative (29.1/0.1).
A Cobb-Douglas production function for a crop has input elasticities of 0.45 (land), 0.3 (labour) and 0.15 (fertiliser). The function shows
D. decreasing returns to scale, since the elasticities sum to 0.90
In a Cobb-Douglas function the sum of the output elasticities measures returns to scale: 0.45 + 0.3 + 0.15 = 0.90 < 1, so a proportional increase in all inputs raises output less than proportionately. Individual elasticities below 1 show diminishing returns to each input, which is a different concept.
Net returns (thousand currency units per ha) for three crops in good, normal and poor seasons are — Paddy: 120, 70, 20; Maize: 100, 65, 40; Pulses: 60, 50, 45. Probabilities are unknown. Which crop does the maximin (Wald) criterion select?
B. Pulses
Maximin takes each crop's worst outcome — paddy 20, maize 40, pulses 45 — and picks the best of these: pulses (45). Paddy has the best single outcome, which is what maximax would pick.
Beyond the net money change, a well-prepared partial budget should also record
B. non-monetary effects such as extra risk, labour peaks and fit with the rotation
A partial budget answers one question with the items that change, then notes considerations it cannot price: risk, timing of labour, rotation effects, skills needed and family preferences. Net worth, whole-farm cash flow and all enterprise margins belong to balance sheets and whole-farm budgets.
The main purpose of a monthly cash flow budget in whole-farm planning is to show
C. when the farm will need to borrow and when it will repay
A cash flow budget spreads expected receipts and payments over months, revealing cash deficits (when a loan is needed) and surpluses (when it can be repaid). Net worth comes from the balance sheet, enterprise profitability from enterprise budgets, and depreciation is a non-cash cost that does not appear in cash flow.
Which of the following is NOT an assumption of linear programming?
D. Increasing returns to scale in each activity
LP assumes linearity (proportionality), which rules out increasing or decreasing returns to scale; additivity; divisibility; finiteness; and certainty of coefficients. Increasing returns would make the objective or constraints non-linear.
In the programme 'maximise 25000X1 + 15000X2 subject to X1 + X2 ≤ 8 (land, ha) and 30X1 + 10X2 ≤ 180 (labour, days)', both constraints bind at the optimum. The shadow prices of land and labour are
D. 10,000 currency units per ha and 500 per labour day
For activities in the basis, imputed resource cost equals gross margin: y1 + 30y2 = 25000 and y1 + 10y2 = 15000. Subtracting, 20y2 = 10000, y2 = 500; y1 = 15000 − 10×500 = 10,000. Check: 8×10000 + 180×500 = 170,000 = primal Z. Gross margin per hectare or per labour day of one crop is not a shadow price.
The simplex method of solving linear programmes was developed by
D. George Dantzig
Dantzig developed the simplex method in 1947. Heady (with Candler) applied LP to farm planning; Markowitz developed mean-variance portfolio theory; Farrell (1957) proposed the decomposition of productive efficiency.
A lender asks a farmer for records. Which of these is the most useful single record for judging whether a term loan can be repaid on schedule?
B. A cash flow statement showing the timing of receipts and payments
Repayment depends on when cash is available. A cash flow statement (or budget) shows surpluses and deficits by month or season, so instalments can be matched to harvest sales. The other records are useful for production planning but say little about repayment timing.
A new high-yielding short-duration rice variety raises grain yield on station but farmers in a mixed crop-livestock area adopt it slowly. The best farming-systems explanation is that
C. its lower straw yield or quality cuts fodder for the farmers' livestock, so whole-farm returns need not rise
In a mixed system straw is fodder, so a variety chosen on grain yield alone can lower whole-farm returns once the livestock subsystem is counted. Diagnosis in FSR is meant to catch such interactions before technology is designed. The other options are unfounded generalisations.
This plan follows where our questions actually fall, so the time goes where the marks are likely to be. It is our reading of the syllabus, not the exam body's weighting.
Read the manual chapters for these first and do every worked question you can find on them.
Aim for one sitting per unit, then mixed questions across them.
Learn the definitions, classifications and standard numbers; these units are more often recalled than worked.
Come back to these after a first pass, untimed, and read every explanation, including for the options you rejected.
Do these early in revision so they are fast on the day.
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