STCW Firefighting Techniques 3

Question 1

Which SCBA (Self-Contained Breathing Apparatus) cylinder pressure is typically considered the minimum safe working pressure before a firefighter must exit?

Accepted Answer

25 bar

Answer

Most shipboard SCBA protocols require exit when pressure drops to 25 bar (approximately 1/4 tank) to allow safe egress time.

Question 2

A 'backdraft' explosion occurs when:

Accepted Answer

Fresh oxygen is suddenly introduced into a smoldering, oxygen-depleted fire compartment

Answer

Backdraft occurs when a compartment's fire has consumed available oxygen but unburned gases ignite explosively when fresh air enters.

Question 3

What is the correct procedure when a fire hose nozzle team encounters heavy smoke at a cabin doorway?

Accepted Answer

Stay low, feel the door for heat, crack it slowly while ready with the hose

Answer

Feeling the door for heat and opening slowly prevents backdraft and allows the team to apply water before advancing.

Question 4

Foam concentrate is mixed with water to produce foam. A typical 3% AFFF concentrate means:

Accepted Answer

3 parts concentrate to 97 parts water

Answer

3% AFFF means 3 parts concentrate mixed with 97 parts water to create the foam solution.

Question 5

Under STCW, what minimum firefighting training must an officer of the watch possess?

Accepted Answer

Basic firefighting (proficiency in firefighting and fire prevention)

Answer

STCW requires all seafarers to hold proficiency in basic firefighting, which includes fire prevention and firefighting fundamentals.

(STCW) Standards Certification and Watchkeeping for Seafarers Practice Test

(STCW) Standards Certification and Watchkeeping for Seafarers Practice Test

STCW Firefighting Techniques 3