smoke detection, fire detection and protection

#17. When air is pressurised the % of oxygen:

• Aincreases.
• Bdecreases.
• Cremains the same.
• Dnil.

#23. A Flow Indicator fitted to an Oxygen regulator indicates:

• Athat exactly the correct amount of oxygen is being used by the crew member.
• Bthat oxygen is flowing through the regulator.
• Cthat the crew member is correctly connected to the regulator.
• Dthat the system pressure reducing valve is supplying the correct pressure to the regulator.

#10. The colour of American oxygen cylinders is:

• Ared.
• Bblue
• Cgreen
• Dbrown