Flare Package System Design and Application

A: A lines up with field reality. Internals and arrestor orientation are mechanical barriers; you don't bury those after introducing fuel. Electrical continuity comes before lighting anything. B jumps to ignition with no mechanical sign-off. C mixes pressure testing with live pilots; that's a bad day during turnaround. D assumes drawings protect you from a misinstalled vortex breaker.

A: A matches the chemistry and temperature window. Sulfur plus heat eats carbon steel fast. B sounds scary but needs wet chlorides and tensile stress at lower temps. C needs decades and different alloy history. D applies to syngas heaters, not open flare tips.

A: A shows the right chain: flow to heat, knock out combustion losses, then a realistic radiative fraction. B forgets flame emerges above the enclosure. C drops physics and treats convection as radiation. D stacks minor effects to scare yourself.

A: A is physical and fast. Misalignment kills UV detection. B hides the symptom and risks SIL. C may be right later but not as a first move. D breaks the protection layer during testing.