(30) a crc is constructed to generate a 4-bit fcs for a 9-bit message. the generator polynomial is x4 +x3 +1. a) draw the shift-register circuit that would perform this task. b) encode the data bit sequence 111011001 using the generator polynomial and give the codeword t(x). c) now assume that the 7th bit (counting from the left side) in the codeword is in error and show that the detection algorithm detects the error.

An open feedwater heater operates at steady state with liquid entering at inlet 1 with t? = 40°c and pl = 1 .2 mpa. water vapor att2-200°c and p2 = 1.2 mpa enters at inlet 2. saturated liquid water exits with a pressure of pa 1.2 mpa. neglect heat transfer with the surroundings and all kinetic and potential energy effects, determine the mass flow rate of steam at inlet 2 if the mass flow rate of liquid water at inlet 1 is given as 2 kg/s.