What do Engineer do answer th question​

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false

What is a monomer? how do they form a ploymer from the view point of chemical bonding?