Sohar LNG Engineering Quizz

comment allez vous?

• Bien

• Tres bien

• endormi(e)

• en vacance

Are you ready ?

• Yes

• No

• I don t know

• what am I doing here ?!?

SAF - How many EP SAF General

Specifications are applicable to the project?

• 1

• 8

• 15

• 22

SAF_LNG vapours are:

• Lighter than air

• Heavier than air

• Both

• Who cares

SAF_In 1944, the largest accident involving LNG occurred in Cleveland, USA. The explosion was estimated to equal a 2.43 kt TNT explosion or 1/6 of the Hiroshima atomic bomb.

How many people were killed?

• 15

• 150

• 850

• 1500

SAF_Which international standard

does not deal with LNG?

• EN 1473

• EN 14620

• NFPA 59

• NFPA 59A

• ISO 2021-05 rev 19

SAF_In 2015, a serious cracking failure occurred on one LNG tank outer wall in this Indonesian terminal where TOTAL is shareholder.

What is the name of the LNG terminal?

• Bontang LNG

• Peciko LNG

• Mahakam LNG

• Sisi Nubi LNG

• Tangguh LNG

PVV_According to TOTAL referential, for new installations, which type of tank shall be selected for the storage of LNG (multiple answers possible)?

• Single containment tank

• Double containment tank

• Full containment tank

• Membrane tank

PVV_Which of the following material is suitable for LNG cryogenic services (multiple answers possible)?

• Austenitic stainless steel type 304L (e.g. PMC B46)

• Duplex stainless steel type UNS S31803 (e.g. PMC B70)

• Low Temperature Carbon Steel type ASTM A333 Gr. 6 (e.g. PMC B21)

• Aluminum type alloy A5083

PVV_Valves in cryogenic services shall be provided with bonnet/stem extension; for which purpose (multiple answers possible)?

• To keep the operator away from the cryogenic fluid

• LNG operators are generally tall. Bonnet/stem extension provides them a better ergonomic,

• To maintain the stem packing material within a normal temperature range,

• Bonnet/stem extension improves the valve’s obturator tightness