In thermoplastic polymers, the fracture mode under loading select one: a. is exclusively brittle b. is exclusively ductile c. can be both ductile and brittle d. who knows, who cares

If you were designing a bumper for a car, would you prefer it to exhibit elastic or plastic deformation? why? consider the functions of a bumper in both a minor "fender-bender" and a major collision.

Two technicians are discussing the intake air temperature (iat) sensor. technician a says that the computer uses the iat sensor as a backup to the engine coolant temperature (ect) sensor. technician b says that the powertrain control module (pcm) will subtract the calculated amount of fuel if the air measures hot. who is correct

Draw the engineering stress-strain curve for (a) bcc; (b) fcc metals and mark important points.