When external appearances have little overall significance, they are termed When external appearances have little overall significance, they are termed what?

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

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

Burgers vector is generally parallel to the dislocation line. a)-true b)-false