Which stroke in the four stroke cycle begins as the piston reaches BDC after combustion takes place a. intake stroke
b. compression stroke
c. power stroke
d. exhaust stroke

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 higher the astm grain-size number, the coarser the grain is. a)-true b)-false

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