Which of the following equations that we learned in the clas
     Which of the following equations that we learned in the class is used to describe volumetric displacement q of an axial piston pump?_______q = pi/2 d^2eN  q=pi/4d^2 DN tan Y  q=pi/2(d + D) ew  q=2kpi NwM^2 q = 2kpiNwm^2  where d represents diameter of a piston, or a rotor, N represents number of pistons or gear teeth,  D represents diameter of piston distribution circle or cam ring diameter, w is for rotor width or gear face width, and e is eccentricity, y represents Swash plate angle and m is for gear modulus. 
  
  Solution
option b is the correct answer

