Acompound gear train is composed of four
gears: a, b, c, and d. gear a has 120 teeth. gear
b has 12 teeth and shares a shaft with gear c,
which has 24 teeth. gear c is meshed with gear
d, the output gear. power is supplied at gear a
with 200 ft. ib of torque and is traveling at 400
rpm. with a system output of 400 ft lb, how
many teeth should gear d have?
a.720
b.900
c.480
d.256

What difference(s) did you notice using a pneumatic circuit over hydraulic circuit.explain why the pneumatic piston stumbles when it hits an obstacle.

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

During a steady flow process, the change of energy with respect to time is zero. a)- true b)- false