What is the main difference between a thermoset (ts) and a thermoplastic (tp) polymer? a thermoset polymer can be recycled whereas a thermoplastic polymer cannot. thermoplastic polymers generally have a stiffness 2-3 times higher than thermosets. thermoplastic polymers are generally used for fabrics whereas thermosets are not. a thermoset polymer chemically degrades when heated excessively whereas a thermoplastic polymer does not. none of the above

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

Aloaded platform of total mass 500 kg is supported by a dashpot and by a set of springs of effective stiffness 72 kn/m. it is observed that when the platform is depressed through a distance x = 12.5 cm below its equilibrium position and then released without any initial velocity; it reaches its equilibrium position in the shortest possible time without overshoot. find the position and velocity of the loaded platform 0.10 sec. after its release. if a further load of 400 kg is added to the platform, find, i) the frequency of damped vibrations, and i) the amplitude of vibration after 2 complete oscillations, given that the initial amplitude is 15 cm.

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