Question 2 What is the maximum safe amount of refrigerant for a recovery cylinder with a water capacity of 50
lb, holding a refrigerant with a specific gravity of 0.9?
A. 50 lb x 0.9 = 45 lb
B. 50 lb x 0.8 = 40 lb
C. 50 lb x 0.8 x 0.9 = 36 lb
D. 50 lb

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.

Coiled springs ought to be very strong and stiff. si3n4 is a strong, stiff material. would you select this material for a spring? explain.

Burgers vector is generally parallel to the dislocation line. a)-true b)-false