****Please Draw Casf flow and other Diagrams with your answers where necessary. Failure to do so will result in a negative review.****

A mechanical engineer is considering two types of pressure sensors for the low-pressure steam lines in several of the company plants. Piezoresistive sensors use the change in conductivity of seiconductors to measure the pressure. Fiber optic sensors use the properties of fiber optic interferometers to sense naometer scale placement of membranes. Tho costs for each system are shown below. Which should be selected based on a present worth comparison at a interest rate of one percent per month?

Piezo resistive Fiber Optic 13,650 22,900 Purchase Cost-$ Maintenance Cost - $/month Salvage Value -$ Life - Years 200 -50 0 2,000 2 4