Question

Find the suction capacity of a power sprayer if diameter is 25 m, speed is 1100 rev/min length of stroke is 22 mm, number of plunger is 3.

(a) 35.61 l/min

(b) 23.90 l/min

(c) 56.89 l/min

(d) 35.47 l/min

I got this question at a job interview.

Origin of the question is Plant Protection Equipments topic in chapter Plant Protection Equipments of Farm Machinery

Answer 1

Correct answer is (a) 35.61 l/min

The explanation: Q = \(\frac{π}{4}\)*D^2*L*n*10^-6 = \(\frac{π}{4}\)*(25)^2*22*1100*10^-6 = 11.87 l/min

Total suction capacity = 11.87 * 3

= 35.61 l/min