CFS Quality Control & Process Improvement 3

Question 1

A CFS project manager wants to reduce the cycle time for processing Elevation Certificate (EC) data. Using a Lean process improvement approach, what is the first analytical step?

Accepted Answer

Map the current-state value stream to identify waste and bottlenecks

Answer

Lean methodology begins with current-state value stream mapping to visualize process flow, identify non-value-added steps, and locate bottlenecks before implementing changes.

Question 2

Which condition would trigger a mandatory QC re-survey of floodplain cross-sections according to standard surveying practice?

Accepted Answer

Closure error on a level loop exceeds the allowable tolerance

Answer

A level loop closure error exceeding allowable tolerance is an objective, measurable trigger that invalidates the vertical control and requires re-survey.

Question 3

During a PDCA (Plan-Do-Check-Act) cycle applied to LOMR preparation quality, the 'Check' phase specifically involves:

Accepted Answer

Comparing pilot results against predefined success metrics

Answer

The 'Check' phase of PDCA involves analyzing pilot results against the success criteria established in the 'Plan' phase to determine if the change achieved the intended improvement.

Question 4

What is the purpose of a calibration log maintained for total station instruments used in floodplain surveys?

Accepted Answer

To provide traceability of instrument accuracy to a recognized measurement standard over time

Answer

A calibration log provides a traceable record demonstrating that instrument accuracy has been verified against a recognized standard, supporting the defensibility of survey results.

Question 5

A quality review of SFHA boundary delineation finds that a floodway encroachment analysis used an incorrect Manning's n value for a reach. Which process improvement action best prevents recurrence?

Accepted Answer

Add a mandatory field in the project database requiring supervisory sign-off on roughness coefficients

Answer

Adding a mandatory supervisory sign-off field creates a process control that makes it structurally impossible to advance the project without verifying the critical parameter.

(CFS) Certified Floodplain Surveyor Practice Test

(CFS) Certified Floodplain Surveyor Practice Test

CFS Quality Control & Process Improvement 3