BSIE Production Management 5

Question 1

A facility produces three products with contribution margins of $30, $50, and $45 per unit and machine-hour requirements of 3, 5, and 3 hours respectively. If machine hours are the binding constraint, which product should be prioritized?

Accepted Answer

Product 3 ($45/unit)

Answer

Product 3 yields $45 ÷ 3 = $15/machine-hour, higher than Product 1 ($10/hr) and Product 2 ($10/hr), so it should be prioritized.

Question 2

The average waiting time in an M/M/1 queue increases dramatically as server utilization (ρ) approaches:

Accepted Answer

1.0 (100%)

Answer

As ρ → 1, the queue length and waiting time grow toward infinity; the system becomes unstable at full utilization.

Question 3

In lean manufacturing, 'Jidoka' (autonomation) refers to:

Accepted Answer

The authority and mechanism to stop production when a defect is detected

Answer

Jidoka gives machines and workers the ability to detect abnormalities and stop the line, preventing defects from passing downstream.

Question 4

Which forecasting method uses a weighted average of past observations where more recent data receives exponentially greater weight?

Accepted Answer

Exponential smoothing

Answer

Exponential smoothing assigns geometrically declining weights to older observations, with α controlling the decay rate.

Question 5

Total Productive Maintenance (TPM) aims to maximize equipment effectiveness by involving:

Accepted Answer

Equipment operators in routine maintenance tasks

Answer

TPM empowers production operators to perform basic maintenance, cleaning, and inspections to prevent equipment deterioration.

BSIE - Bachelor of Science in Industrial Engineering Practice Test

BSIE - Bachelor of Science in Industrial Engineering Practice Test

BSIE Production Management 5