The engine revs but the powerboat is not moving — the propeller is suspected to have fouled on a lobster pot line. What is the procedure?

A. The engine will overheat and burn through the line automatically — maintain revs

B. Stop engine immediately (prevent rope wrapping further); do not restart until the rope is cleared; anchor if in tide or near hazards; assess the foul from above water if visible; dive to clear if trained and conditions allow with engine OFF and kill cord confirmed disconnected; use a sharp knife; call Coastguard if unable to clear or in a dangerous position

C. Run the engine alternately in forward and reverse at full throttle — this unwinds the line

D. Lean over the stern and pull the line by hand while the engine is running in reverse

A. The kill cord is only required when travelling above 15 knots

B. If the driver is thrown from the helm, the cord pulls the kill switch stopping the engine — preventing the vessel continuing at speed unmanned (a "circle of death" where an uncontrolled powerboat circles at full throttle striking the crew in the water)

C. The kill cord prevents fuel surging at high speed

D. Kill cords are advisory only — they are not required by law for leisure powerboats

A. Check fuel and kill cord only — all other checks are annual service items

B. Fuel (level, no leaks, correct mix if 2-stroke); oil (4-stroke: check dipstick); engine mounting bolts tight; kill cord condition and function; propeller (no damage, cotter pin present); safety equipment (lifejackets, flares, VHF, bailer, paddle); kill cord attached before starting

C. Run the engine in the water for 10 minutes before departure — no pre-launch checks needed

D. Only check fuel level — outboard engines are self-maintaining