While a vessel is underway the low pressure turbine high-speed pinion is damaged. The pinion is then removed from the gear train. Under these circumstances, the main unit is capable of which speed and direction?

Correct Answer: Option A — Reduced speed ahead only

Removing the high-speed pinion from the low-pressure turbine isolates that turbine element from the reduction gear. The high-pressure turbine remains fully operational, permitting reduced-speed ahead propulsion utilizing steam through the cross-compound high-pressure line.