FST Inspection Procedures 5

Question 1

During inspection of a clean agent suppression system, the technician finds the agent cylinder weight is 5% below the listed weight. What action is required?

Accepted Answer

Recharge or replace the cylinder immediately

Answer

NFPA 2001 requires cylinders with agent loss exceeding 5% of net weight or a pressure loss of more than 10% to be recharged or replaced.

Question 2

What is a 'four-year internal inspection' requirement under NFPA 25, and to which system does it primarily apply?

Accepted Answer

Internal pipe inspection of dry and preaction systems for microbiologically influenced corrosion

Answer

NFPA 25 requires internal inspection of dry and preaction system piping every 4 years to check for corrosion, scale, and microbiologically influenced corrosion (MIC).

Question 3

A technician performing a semi-annual fire pump test records a churn (no-flow) pressure reading. What is the acceptable variance from the original acceptance test data?

Accepted Answer

Up to 10% variation is acceptable

Answer

NFPA 25 allows up to a 10% decrease in pump pressure from the original acceptance test before requiring corrective action.

Question 4

When is a 'witnessed test' by the AHJ typically required for a fire protection system?

Accepted Answer

During installation acceptance testing and after major modifications

Answer

The AHJ typically witnesses acceptance tests after new installation or major modifications to verify the system meets code requirements before occupancy.

Question 5

A technician inspects a fire department connection (FDC) and finds the swivel coupling is seized and will not rotate. What is the correct action?

Accepted Answer

Tag the FDC out of service and arrange for repair

Answer

A seized FDC swivel prevents firefighters from quickly connecting their hose, making it a critical deficiency requiring immediate repair.

(FST) Fire Safety Technician Certification Practice Test

(FST) Fire Safety Technician Certification Practice Test

FST Inspection Procedures 5