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

What could cause Ex d equipment to fail in containing an internal explosion in a Zone 1 environment?

A Bad flamepaths or inadequate sealing.

B Insufficient power supply.

C Short circuit failure.

D Improper wiring.

Question 2

What is the primary function of IS cable glands in hazardous zones?

A To protect the IS circuit by preventing sparks and heat from escaping the connecting site.

B To reduce signal interference.

C To provide additional electrical conductivity.

D To improve grounding efficiency.

Question 3

What means High EPL of the device?

A That device is safe even with one fault during operation in Hazardous Zones.

B That device is safe without any faults during operation in Hazardous Zones.

C That device is safe even after three faults during operation in Hazardous Zones.

Question 4

Describe "Zone 2" onboard Gas Carrier?

A Zone 2 - is an area where an explosive atmosphere is not often and only for short periods of time.

B Zone 2 - is an area where there is no explosive atmosphere and it's safe.

C Zone 2 - is an area where an explosive atmosphere is present continuously, for long periods or frequently.

Question 5

What means Very High EPL of the device?

A That device is unlikely to ignite in regular operation, predicted malfunctions, uncommon failures, or when kept off during a gas breakout. Even if there are two or more failures.

B Ensures the device is unlikely to ignite in breakdown operation, or when kept off during a gas breakout. Even if there are three or more failures.

C Ensures that device fits all ExProof Standards and certifications.

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