LNG Operations - Engine

ExProof Equipment Knowledge

Understanding explosion-proof equipment means the difference between routine ops and total disaster. Faulty exposed sensor or wrong tools? Boom - lives lost, ecosystems poisoned, billions in damage.

Questions 18

Time Limit 9 min

Language English

Sample Questions

Here are some example questions from this quiz. Download the GYRO app to take the full test.

Question 1

Why must Exproof personal flashlights be used in enclosed spaces classified as hazardous?

A The flashlight could generate sparks or heat, igniting the explosive atmosphere in the Zone 0, 1.

B The flashlight will drain its battery faster.

C The flashlight will not work properly.

D The flashlight will malfunction.

Question 2

What does "Gc" mean?

A Equipment Protection Level for gases, mists, vapors in Zone II.

B Gas Zone I, II

C Equipment Protection Level for dusts in Zone I, II.

D Equipment Protection Level for gases, mists, vapors in Zone 0.

Question 3

What does the "T" rating (T1, T2, T3, T4) on Exproof equipment signify?

A The maximum surface temperature the equipment can reach without igniting surrounding gases.

B The type of material used for the enclosure.

C The weight of the equipment.

D The operational voltage range.

Question 4

What is Gas sampling system principal?

A It takes probes from different hazardous zones, runs them through main cabinet detectors.

B It measures atmosphere in hazardous zones by local gas detectors.

C It measures atmosphere in hazardous zone 1 by gas detectors.

D It takes probes from liquid line as LNG samples, during cargo operations.

Question 5

What is correct "encapsulated equipment" - "moulding" marking?

A Ex m

B Ex n

C Ex t

D Ex e

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