A product (that has not been yet invented) that involves lighting up when something happens?

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.

Inspection for bearing condition will include: (clo4) a)-color b)-smell c)-size d)-none of the above