a) Dimensional metrology has evolved to ensure productivity and profitability in the smart factory concept. List TWO (2) growing trends in metrology technique in adopting industrial 4.0. (CO1/PO1/C1) (4 marks) b) Propose and explain an appropriate method to measure rake angle in single point cutting tool in lathe tooling. You may provide schematic diagram to support your explanation. (CO2/PO2/C4) (10 marks) c) A shaft is to be fitted into a hole of basic size 80 mm in diameter and the designation of fit used is H8g5. Base on the Hole Basis System, the tolerance limits for hole is (+0.046, 0.0) mm and for shaft is (-0.1, -0.23) mm. Determine the type of fit. (CO2/PO2/C3) (6 marks)