Pressure Regulator Stations — Practice Quiz

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These are practice questions reworded from course material — they are not the actual examination questions.

Tool 1 Pressure diagram — setpoint check

Checks that the tolerance bands of the active regulator, monitor regulator and slam-shut valve (SSV) are correctly staggered (Active < Monitor < SSV, no overlap), per EN 334 / EN 12186.

Tool 2 Safety-device count (EN 12186)

Determines the minimum number of safety devices a pressure-regulating station requires, from the upstream and downstream pressure levels.

Tool 3 Cg — regulator flow coefficient (EN 334)

Computes the flow coefficient Cg of a gas pressure regulator and identifies the flow regime (critical vs sub-critical). Pressures are absolute.

Engineering tools based on the CH4 Engineering course sheets (EN 334 / EN 12186).