Question

Must answer all 5 questions for thumbs up.

The system whose block diagram is shown is governed by the following differential equation What is the transfer fiunction, G(s) -CGVRCS), for the system? o(A) (C 10s+16 (D Which statement is true? O (A) A solid-solution alloy is produced by melting together two metals that don't mix in the solid state (B) A solid-solution alloy is an alloy of two solid phases (C) A solid-solution alloy is 0 (D) A sold-solution alloy is quickly attacked by an acid Which ofthe following would most likely require a steel containing 0.6% carbon that has been spheroidized, cold-drawn, and slightly tempered? O (A) atridge beam (B) awater pipe (C) a cutting tool o (D) aball bearing Steel containing less than what percent carbon is considered low-carbon steel? O (A) (B) (C) (D) 0.30% 0 1.0% 3.5% O 5.0% Which of the following statements is FALSE? (A) High-strength, low-alloy steels are not as strong as nonalloy, low-carbon steels. Small amounts of copper increase the tensile strength of steels. O (C) Small amounts of silicon in steels have little influence on toughness or fabricability O (D) Addition of small amounts of silicon to steel can cause a marked decrease in yield strength of the steel.

Answer 1

Option B C (t) + 16 C (t) = 10 r (t) Take Laplace (S + 16) C (s) = 10 R (s) = > C (s)/R (s) = 10/s + 16 option c it is homogenous and Can exist in single phase which is definition of the solid solution alloy option B A water pipe has 0.6% carbon content where other give more than 1% of carbon option A , Generally low carbon steels are from 0 - 0.3% option D: silicon increases the strength and hardness