ME or MEng Master of Engineering Master of Engineering Computer-Aided Manufacturing 5

Question 1

Which scheduling algorithm minimizes the maximum lateness of jobs in a single-machine manufacturing environment?

Accepted Answer

Earliest Due Date (EDD)

Answer

The Earliest Due Date (EDD) rule minimizes maximum lateness by sequencing jobs in order of their due dates.

Question 2

In the context of machine tool metrology, what is the Abbe principle (Abbe error)?

Accepted Answer

Error amplification when the measurement axis is offset from the reference axis

Answer

Abbe's principle states that angular errors are amplified into linear errors proportional to the offset distance between the measured and reference axes.

Question 3

What is the primary function of a Manufacturing Execution System (MES) in a smart factory?

Accepted Answer

Bridging ERP business planning with real-time shop floor control and data collection

Answer

MES sits between ERP systems and machine-level controls, tracking WIP, enforcing schedules, and collecting real-time production data.

Question 4

In EDM (Electrical Discharge Machining), material removal occurs through which mechanism?

Accepted Answer

Thermal erosion by repeated electrical sparks in a dielectric fluid

Answer

EDM removes material through controlled electrical discharges that locally melt and vaporize the workpiece in a dielectric fluid.

Question 5

Which topology optimization method is most commonly integrated with CAD/CAM software to reduce part weight while maintaining structural performance?

Accepted Answer

Solid Isotropic Material with Penalization (SIMP)

Answer

SIMP iteratively redistributes material density within a design space, penalizing intermediate densities to produce distinct solid/void regions.

ME or MEng Master of Engineering Practice Test

ME or MEng Master of Engineering Practice Test

ME or MEng Master of Engineering Master of Engineering Computer-Aided Manufacturing 5