Iso-Octane is supplied to a four-cylinder 2.4L displacement SI engine at 2g/s while operating at 1500rpm. Calculate: a. The air flow rate for stoichiometric combustion b. The mass of fuel and air entering each cylinder per cycle c. The volumetric efficiency of the engine

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)