3.A 150 mm diameter cast iron (E = 99 GPa, ν = 0.211) wheel, 50 mm wide, rolls on a flat steel plate (E = 207 GPa, ν = 0.292), and carries a load of 3.6 kN. Determine the maximum shear stress at a depth of 0.38 mm in the wheel

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

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way

Vibration monitoring this technique uses the noise or vibration created by mechanical equipment and in seme cases by plant systems to detemine their actual condtion. a)- true b)- false