Which option identifies the type of engineer described in the following scenario? A team of engineers is working on a project to design a new medical drink to fight the AIDS epidemic in Africa.

electrical
mechanical
chemical
agricultural

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Journeyman training is usually related (clo2) a)-to specific tasks b)-to cost analysis of maintenance task c)-to control process to ensure quality d)-to installation of machinery

Ahe-xe mixture containing a 0.75 mole fraction of helium is used for cooling electronics in an avionics application. at a temperature of 300 k and atmospheric pressure, calculate the mass fraction of helium and the mass density, molar concentration and molecular weight of the mixture. if the cooling capacity is 10 l, what is the mass of the coolant?