An LTI system has zeros [3, 4] and poles 1,2]. The transfer function H (z) has H(0)-6. Compute the following: (a) The transfer function H(z) (b) The response to [n]- (1, -3,2]. (c) The impulse response h[n] (d) The difference equation.

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

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero

Apressure vessel with an r/t 20 cannot be treated as thin walled vessel. a)-trune b)- false