Neco Model Questions Vol1 2021 Agricultural Science Question 4

Practice practical question 4 from the 2021 Neco Model Questions Vol1 Agricultural Science examination. This question covers Farm Machinery, Power transmission, Fuel consumption, Safety .

Neco Model Questions Vol1 2021 Agricultural Science Practical
Topics: Farm Machinery Power transmission Fuel consumption Safety
Question 4 NECO_MODEL_QUESTIONS_VOL1 • 2021 • AGRICULTURAL_SCIENCE • practical

A 45 kW diesel tractor is to be used to operate a rotary harvester that requires 20 kW at a PTO speed of 540 rpm. The tractor’s transmission efficiency is 85 %. The specific fuel consumption of the tractor engine is 210 g kWh⁻¹. The harvester will be operated for 2 hours on a field. Answer the following questions:

Question Parts

( a )
Determine whether the tractor can supply the required power to the harvester at the specified PTO speed.
( b )
Calculate the torque available at the PTO (in N·m) when the tractor is delivering its maximum usable power.
( c )
Estimate the amount of fuel (in kilograms) that will be consumed by the tractor during the 2‑hour operation, assuming the harvester actually uses its rated 20 kW throughout.
( d )
List two essential safety precautions that must be observed when operating the tractor‑harvester combination.

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About This Question

This is Neco Model Questions Vol1 2021 Agricultural Science Question 4. It is one of the practical questions from the 2021 Neco Model Questions Vol1 Agricultural Science examination.

The question covers Farm Machinery, Power transmission, Fuel consumption, Safety .

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