OCTCO 3

CO2 IS A NON-TOXIC GAS.

• TRUE

• FALSE

CO2 BOTTLE BURSTING DISC BURSTS AT A NOMINAL PRESSURE OF ____

• 100 BAR

• 10 BAR

• 40 BAR

• 190 BAR

TIME DELAY UNIT IS PROVIDED IN THE CO2 EXTINGUISHING SYSTEM SO THAT

• MASTER VALVE OPENS FIRST AND THEN THE CO2 CYLINDER OPENS

• CO2 CYLINDER OPENS FIRST AND THEN THE MASTER VALVE

• MASTER VALVE DOES NOT OPEN AT ALL

• NONE ARE CORRECT

POLYMERIC MEMBRANE FORMATION ON POLAR FUELS BY AR-AFF FOAM IS SELF HEALING.

• TRUE

• FALSE

LOW EXPANSION FOAM EXPANSION RATIO IS _______

• BETWEEN 20 TO 1 AND 200 TO 1

• BETWEEN 2 TO 1 AND 20 TO 1

• >200 TO 1

• ALL ARE CORRECT

WHICH ONE OF THE BELOW IS THE DISADVANTAGE OF A DCP EXTINGUISHER?

• CAKING CAN HAPPEN

• IT DOES NOT COOL THE FIRE

• POWDER CLEANING OF THE ELECTRICAL EQUIPMENT AFTER THE FIRE EXTINGUISHING IS VERY DIFFICULT

• ALL ARE CORRECT.

WHAT IS THE CHEMICAL COMPOUND USED IN THE DCP EXTINGUISHER?

• POTASSIUM BICARBONATE

• HYDROGEN SULPHIDE

• CARBON MONOXIDE

• ALL ARE USED

HOW MANY SECTIONS ARE THERE IN MSDS?

• 15

• 10

• 18

• 16

WHAT IS THE FULL FORM OF ALARP?

• AS LOW AS REASONABLY POSSIBLE

• AS LOW AS RESISTIVELY PRACTICABLE

• AS LOW AS REASONABLY PRACTICABLE

• NONE ARE CORRECT

SAFETY ON-BOARD IS THE RESPONSIBILITY OF

• THE MASTER

• THE CHIEF OFFICER

• EACH AND EVERYONE

• THE DECK CADET