QCAA Agricultural Science Enterprise management

5 sample questions with marking guides and sample answers

Q9
2024
QCAA
Paper 1
1 mark
Q9
1 mark

An excerpt from a financial statement for a wheat crop grown on 500 ha is shown.

 $/ha
Income/ha704
Wheat (3.2 t/ha at $220/t)704
Total income ($/ha) 
Costs/ha 
Sowing58
Permanent wages40
Rates18
Fertiliser210
Herbicide42
Insecticide12
Contractors110
Fuel18
Total variable cost ($/ha) 
Total cost ($/ha) 
Gross margin ($/ha) 

Determine the total variable cost and gross margin for the crop.

 Total variable cost ($/ha)Gross margin ($/ha)
A508196
B468236
C450254
D472232
A

Row A

B

Row B

C

Row C

D

Row D

Q1
2024
QCAA
Paper 1
1 mark
Q1
1 mark

When using the PPRR model, restocking after a drought is an example of

A

preparedness.

B

prevention.

C

response.

D

recovery.

Q7
2024
QCAA
Paper 2
7 marks
Q7

The table shows the nutrient composition of four commercially available pig feeds.

NutrientFeed AFeed BFeed CFeed D
Crude protein (%)13.015.016.022.0
Crude fat (%)2.02.52.03.5
Crude fibre (%)6.08.55.03.3
Digestible energy (MJ/kg)12.613.513.515.0
Q7a
2 marks

Determine the most suitable feed for pigs at the end of their production cycle for the domestic market. Justify your decision using data from the table.

Q7b
3 marks

The table shows the average weight gain of two groups of pigs recorded over 25 days and the total feed consumed. There were 10 pigs in each group.

GroupTotal feed consumed (kg)Weight gained per pig (kg/day)Feed conversion ratio
A8303.0 
B7502.51.2

Calculate the feed conversion ratio for the pigs in group A. Show your working.

Q7c
2 marks

Draw a conclusion about which group of pigs is the most efficient at converting feed into meat. Justify your conclusion.

Q20
2024
QCAA
Paper 1
4 marks
Q20

The table shows the results of an experiment that investigated the effect of two different fertilisers on the nodulation and yield of chickpeas.

 Number of nodules per plantGrain yield (kg/pot)
Control015.26
Fertiliser A6217.47
Fertiliser B10619.16
Fertiliser A and B12219.16
Q20a
2 marks

Contrast the effects of each fertiliser, in isolation or in combination, on each of the measured variables.

Q20b
2 marks

Draw a conclusion about which fertiliser maximises yield most efficiently when producing chickpeas. Justify your conclusion using evidence from the table.

Q5
2024
QCAA
Paper 2
3 marks
Q5
3 marks

The table shows Australian Breeding Values (ABVs) for production traits for four bulls.

BullBirthweight (kg)200-day milk (L)200-day growth (kg)Mature cow weight (kg)
A1-1+10+10+11+11+54+54
B+5+55-5+10+10+61+61
C+5+5+10+10+10+10+35+35
D+1+1+6+6+14+14+23+23

Determine which bull should be purchased to improve milk production. Use evidence from the table to support your decision.

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