Technician A says the addition or subtraction of shims is used to correct shaft end play. Technician B says end play is not a crucial measurement. Who is correct?

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

What is the heat treatment of metals? what is the benefit of it? why and how it's useful? answer in details, do not write by hand.

Plan an experiment to measure the surface tension of a liquid similar to water. if necessary, review the ncfmf video surface tension for ideas. which method would be most suitable for use in an undergraduate laboratory? what experimental precision could be expected?