Question

Calculate the time required for sowing 1.6 hectares of land by five furrows seed drill going 12.5 cm deep. The speed of seed drill is 3.2 km/hr and pressure exerted by the soil on the seed drill is 0.42 kg/cm^2. The space between furrow openers is 10 cm and loss in turning is 10%.

(a) 21.07 hrs

(b) 9.87 hrs

(c) 2.34 hrs

(d) 11.11 hrs

The question was asked in class test.

I would like to ask this question from Sowing Equipments topic in section Sowing Equipments of Farm Machinery

Answer 1

Right choice is (d) 11.11 hrs

For explanation: Total width of seed drill = 5*10 = 50 cm

Theoretical area/hr = \(\frac{50}{100}*\frac{3.2*1000}{10000}\) = 0.16 ha

Actual area/hr = \(\frac{0.16*90}{100}\) = 0.144 ha

Time for sowing 1.6 ha = \(\frac{160}{0.144}\) = 11.11 hrs