Program MAIN {var a, c, d : integer; procedure SUB(w : integer) { var c: integer; c++; c := a + 7; a++; d := c + w; a++; } (end SUB) a := 2; c := 35; d := 70; call SUB(a); print (a, c, d); } (end MAIN)

Fluids at rest possess no flow energy. a)- true b)- false

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

An air compression refrigeration system is to have an air pressure of 100 psia in the brine tank and an allowable air temperature increase of 60°f for standard vapor compression cycle temperatures of 77 f entering the expansion cylinder and 14 f entering the compression cylinder, calculate the coefficient of performance a. 2.5 b 3.3 c. 4.0 d. 5.0