WorksheetsTLP TLP an ajee
Total questions: 50
Worksheet time: 25mins
Which layout best matches high product variety and low volume with many alternative routings?
Process (functional) layout
Product (line) layout
Fixed-position layout
Cellular layout with dedicated families
A product with stable, repeatable routing at high volume is most suited to:
Process layout
Product (line) layout
Random storage layout
Project layout
A central aim of facilities planning is to:
Cut labor cost only
Reduce capital cost only
Reduce material handling distance/time while meeting quality and safety
Reduce vendor lead time only
Which sequence reflects Systematic Layout Planning (SLP) from data to evaluated alternatives?
Data → Space → ARD → REL → Alternatives → Evaluation
REL → Data → Space → ARD → Alternatives → Evaluation
Data → ARD → REL → Alternatives → Space → Evaluation
Data → REL chart → ARD → Space relationships → Alternatives → Evaluation
In SLP, the REL chart encodes:
Machine horsepower by department
Desired closeness ratings with reasons (flow, safety, supervision, etc.)
Actual distances between areas
Maintenance intervals
The Activity Relationship Diagram (ARD) is mainly used to:
Compute handling tariffs
Balance a paced assembly line
Visualize connectivity implied by closeness ratings before assigning space
Design racking details
When closeness increases (e.g., I→A) but area is tight, a practical action is to:
Remove aisles to force adjacency
Ignore the REL chart
Relocate both to the roof
Use a shared boundary or corner adjacency without expanding footprint
For travel along orthogonal aisles, the distance metric typically used in load–distance models is:
Manhattan (rectilinear)
Euclidean
Great-circle
Chebyshev
The classic load–distance objective seeks to minimize:
Weighted sum of flow × distance (× tariff)
Sum of idle times
Number of operators
Square footage only
A from–to chart primarily captures:
Theoretical machine speeds
Quantities of moves from i to j per period (can be asymmetric)
Depreciation schedules
Lighting levels
A swap-based improvement method like CRAFT is best described as:
Exact global optimizer
Ergonomics audit
Local search exchanging departments to reduce total LD cost
Queuing model
If the material handling tariff increases across the board, the first distances to shorten are usually those for:
Pairs with the smallest flows
Any random pair
Pairs with no moves
Pairs with the largest flows
A complete space estimate for a department includes:
Machine footprints only
Machines + service clearance + internal circulation + aisles (+ WIP/stock if relevant)
WIP only
Aisles only
The dominant determinant of minimum aisle width is:
Supervisor count
Corporate color palette
Vehicle class & turning radius (with load), plus clearances
Floor coating
When Paint/Solvent must be near Welding for flow economy, the correct decision is to:
Keep direct adjacency for lowest LD cost
Merge both areas
Only add fans
Prioritize safety: separation by fire-rated barrier, dedicated ventilation, segregated routes
Adding a cross-aisle in a long corridor will primarily:
Reduce average travel for pickers/vehicles
Increase average travel
Reduce demand variability
Change takt time
For receiving design, the most layout-sensitive KPI is commonly:
Dock-to-stock time
Supplier lead time
Purchase price variance
Scrap rate
Takt time is defined as:
Sum of task times divided by stations
Available production time per period divided by required output
Fastest station time
Cycle time plus setup
Given total work content of 468 s/unit and cycle time target 78 s, the theoretical minimum number of stations is:
5
7
6
8
Line efficiency equals:
(Stations × Cycle) / Total work
Total idle / Total work
1 – Balance delay (%)
Total work / (Stations × Cycle)
A frequent cause of balance delay even with good assignments is:
All tasks have identical times
Precedence constraints force unavoidable idle time in some stations
Cycle equals shortest task
No parallel branches exist
In mixed-model assembly under a common takt, the single most important lever is:
Separate lines for every variant
Eliminate all testing
Workload smoothing with standardized work across variants
Inflate WIP buffers indiscriminately
Cellular layout formation primarily relies on:
Color coding of floors
ISO audit tables
Random clustering
Part–machine incidence analysis to identify families and group machines
An 'exceptional element' in a cell is:
A part that must visit machines outside its assigned cell
Any part completed within the cell
A task longer than cycle
A machine with high uptime
Fixed-position layout success depends most on:
JIT arrival of subassemblies/specialists at the workface with kitted logistics
Shortest Euclidean distances building-wide
Maximizing stationary buffers
Eliminating inspections entirely
ABC slotting policy implies that Class-A items are typically stored:
Farthest from the dock
Closest to the dock/pick face
Randomly
In deep reserve only
To validate two-way aisle capacity at peak, the preferred method is:
Static width tables only
One-time visual inspection
Discrete-event simulation or queuing with realistic arrivals & turning dynamics
Ignore pedestrians
Centers A(12, 8) and B(36, 10). The Manhattan distance between A and B is:
24 m
22 m
20 m
26 m
Centers H(14, 42) and J(58, 10). The Manhattan distance is:
A. 82 m
B. 76 m
C. 72 m
D. 68 m
Given A→B = 80 u/h, distance 22 m, tariff Rp12/m/unit, the hourly MH cost for A→B is:
Rp19,200
Rp22,880
Rp21,120
Rp20,240
Two plans with flows/hour A→B=70, B→C=50, C→A=40 and tariff Rp10. Plan X distances (m): AB=20, BC=16, CA=30. Plan Y: AB=24, BC=12, CA=28. Which is lower cost?
Layout X cheaper by Rp1,200
Layout Y cheaper by Rp1,200
Layout X cheaper by Rp800
They tie (no cost difference)
Available time 7.5 h/shift; required output 400 units. Takt (rounded to a whole second) is:
68 s
67 s
70 s
75 s
With cycle time 68 s and total work 476 s, the theoretical minimum number of stations is:
7
8
6
9
An 8-station line at C = 68 s has total idle 60 s/cycle. Approximate line efficiency is:
≈86%
≈89%
≈92%
≈84%
Receiving best practice emphasizes:
One narrow door for control
Locating receiving far from storage
Clear staging lanes, near-dock inspection as required, safe vehicle turning radii
Mix inbound and outbound staging
The unit load principle suggests you should:
Move items one-by-one
Always use the largest forklift
Prefer manual handling
Aggregate items into standardized containers to reduce handling frequency
In MH equipment justification, a common target is:
Ignore safety benefits
Payback within ~2 years via labor/overhead savings and safety benefits
Only tax effects matter
Depreciation is irrelevant
The classic quadratic assignment problem (QAP) models:
Operator scheduling
Warehouse ABC grouping
Assigning departments to locations to minimize flow–distance cost
Racking design
Simulated annealing in layout design is useful because it can:
Guarantee the global optimum instantly
Replace safety review
Be expressed as simple linear programming
Escape local minima probabilistically and improve over simple swaps
A robust evaluation of two block layouts includes:
Safety compliance, expandability, REL satisfaction, and quantitative LD cost
LD cost only
Supervisor preference
Number of corners
Main/mail aisles in a block plan are primarily for:
Structuring wide primary corridors to organize traffic and adjacency blocks
Randomizing travel
Removing signage needs
Automatically reducing dock count
Before adding a shipping lane to handle peaks, you should primarily use:
REL chart
Queuing/Discrete-Event Simulation to estimate queues and congestion
A static sketch
A color heatmap only
Facilities planning integrates material and information flow with the goal of:
Maximizing any single department’s metric
Eliminating flexibility
Improving overall system performance and customer service
Increasing WIP intentionally
In SLP, reasons behind closeness ratings most often include:
Branding rules
Tax policy
Wallpaper color
Flow volume, safety, supervision, shared resources, noise/contamination
From–to data combined with rectilinear distances provide the basis to estimate:
Ergonomic risk
Material handling cost via load–distance
Depreciation
Lighting placement
When space is evaluated, which constraint category often dominates feasibility?
Corporate logo placement
Paint color
Columns/shafts/utilities and egress that shape block geometry and aisles
Canteen menu
Under mixed-model production, standardized work primarily serves to:
Freeze flexibility
Increase rework
Eliminate training needs
Stabilize task content across variants for smoother flow at a common takt
In forming cells, the main design objective is to:
Minimize exceptional elements while maintaining capacity and flow
Maximize cross-cell travel
Randomize routing
Eliminate all buffers
For receiving-to-storage flow, a near-dock slotting policy supports:
Shorter put-away and quicker availability (dock-to-stock)
Longer travel paths
Random replenishment
Wider aisles only
Continuous improvement in facility layout means you should:
Freeze the layout after commissioning
Periodically reassess flows, safety, and cost; iterate alternatives
Ignore tariff/distance changes
Avoid data collection
