BSIE Bachelor of Science in Industrial Engineering MCQ 2

Question 1

In a single-server queuing system (M/M/1), what happens to the average waiting time as the traffic intensity (ρ) approaches 1?

Accepted Answer

It approaches infinity

Answer

As ρ → 1, the queue length and waiting time grow without bound, making the system unstable.

Question 2

Which ergonomic principle states that workstations should be designed to fit the 5th to 95th percentile of the user population?

Accepted Answer

Design for adjustability

Answer

Designing for adjustability accommodates the broadest range of users by allowing the workstation to be modified to fit individual needs.

Question 3

In Six Sigma methodology, a process operating at 6 sigma quality level produces approximately how many defects per million opportunities (DPMO)?

Accepted Answer

3.4

Answer

A Six Sigma process, with a 1.5 sigma shift, yields approximately 3.4 DPMO.

Question 4

The Wagner-Whitin algorithm is used to solve which type of inventory problem?

Accepted Answer

Dynamic lot sizing with time-varying demand

Answer

The Wagner-Whitin algorithm finds the optimal lot-sizing policy when demand varies across planning periods.

Question 5

Which simulation technique is most appropriate for modeling systems where state changes occur at discrete points in time?

Accepted Answer

Discrete-event simulation

Answer

Discrete-event simulation tracks system state changes that occur at specific event times, making it ideal for queuing and manufacturing systems.

BSIE - Bachelor of Science in Industrial Engineering Practice Test