Theory question 102
Farm Machinery and MechanisationWrite short notes on each of the following:
(a) tractors
(b) incubators
(c) sprayers
(d) shellers.
Show the model answer
(a) Tractor: self-propelled machine (diesel/petrol) that pulls and powers implements (plough, harrow, ridger, trailer) through drawbar, hydraulics and power take-off; maintenance – check oil, water, tyres, grease
(b) Incubator: box/cabinet that hatches fertile eggs by keeping temperature (about 37.5 °C), humidity and ventilation right, with egg turning; kerosene or electric
(c) Sprayer: equipment (knapsack, motorised, boom) that applies liquid chemicals – pesticides, herbicides, foliar fertilizers – as fine droplets; wash after use
(d) Sheller: hand or power machine that removes grains from maize cobs or shells groundnuts
For each give what it is, its use and one care point.