AIGF

In type B & membrane tanks, safety valve will lift at ____.

• 700 bar

• 0.7 Mpa

• 700 mbar

• 7 bar

A .............. is required for immediate inerting because deliveries are in liquid form

• o2 vaporizer

• Nitrogen Vaporizer

• co2 vap

• all are correct

2 All LNG lines should be fitted with ----------- to prevent liquid spill

• safety valve

• crock

• square steel

3. Green house gas effects global warming, identify an incorrect statement

• About 40% man made global warming is caused by methane

• Major content of LNG is methane

• Roll over occurs when LNG ageing occurs

Which of the below is the heaviest of all?

• Air

• Ammonia

• Methane

• LPG

5. As per IGF code - gas pressure is defined as

• more than 300 bar

• less than 10 bar

• more than 10 bar

7. What is the critical temperature of Butane?

• 0.2221 deg C

• 135 deg C

• 33300 deg C

8. The maximum allowable working pressure ( MAWP) of gas gas fuel tank shall not exceed_______________ of MARVS.

• 100%

• 50%

• 10%

• 90%

12. In thermodynamics terms identity which one is a real fluid

• steam

• air

• flue gas

• all are correct

At what temperature of the tank, LNG bunkering shall be started?

• -40 deg C

• 130 deg C

• -10 deg C

• -130 deg C