BA Oral Assessment Questions

Question 1

State the Minimum pressure for first use of BA set

Answer 1

250 bar (200 re-entry)

Question 2

State the flow capacity of the pressure reducer

Answer 2

700 L/min at max flow

Question 3

What is the preferred minimum pressure the provider must have to enact the buddy breather procedure?

Answer 3

Recommended 150 Bar

Question 4

Name the disinfectant, the amount (ratio to water) and submersion time required to disinfect face mask

Answer 4

Bio guard 1:80 , Pre diluted 1:20, 10 min submerged

Question 5

State the pressure at the
A) electronic low pressure warning alarm will sound
B) mechanical low pressure warning whistle will sound

Answer 5

A) 99 bar
B) 55 bar + or - 5

Question 6

When should you change the battery?

Answer 6

At 1 red segment (19% or less)

Question 7

State the 4 HUD air cylinder pressure indicator levels and the corresponding pressure ranges in BAR

Answer 7

4 Green : 300-271Bar
3 Green : 270-181 Bar
2 Green : 180-100 Bar
1 Yellow : 99-60 bar
1 Red : 59-0 bar

Question 8

State what the solid red triangle indicates in the HUD

Answer 8

Level 4 motion alarm or manual duress

Question 9

State your actions in an incident should your BA lose all power or electronic function

Answer 9

Attempt to use the purge button in the event of an airflow restriction

Communicate with team member and exit immediately to BA entry.
Emergency radio may be required depending on situation

Question 10

Explain the PACT check

Answer 10

PPE/PPC worn correctly
Air
Communication
Tally tag / Task

Question 11

What do you do if you become entrapped (4 points)

Answer 11

• manually activate the alarm control module then make way to closest entry point
• the team should sit down and remain together with BA sets on
• use hose line to safeguard
• notify BA entry and IC using radio