Technician A says that steel bumpers are commonly used on trucks. Technician B says that steel bumper covers may be painted to match the body color.
Who is right?

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet