Question 348Steam Plants - 1st Asst/Chief
70% to passPrior to rolling the main turbines in preparation for getting underway, you should _______________.
Acirculate the lube oil through the emergency lube oil cooler
Bsecure the gland sealing steam regulator
Copen the reduction gear casing access plates and inspect the lube oil spray pattern
Ddisengage the turning gear
AI Explanation
The correct answer is D) disengage the turning gear. Before starting the main propulsion turbines, the turning gear must be disengaged. The turning gear is used to slowly rotate the main shafts when the ship is not underway, to prevent sagging or distortion of the bearings and gears. Engaging the turning gear while the turbines are running would cause damage to the turning gear mechanism. The other options are not directly related to preparing the propulsion system for getting underway.
Related Questions
Q129:Coast Guard Regulations, 46 CFR Part 54, require steam safety and relief valves ... Q282:When the steam pressure drops below a set value on an automatically fired auxili... Q294:When a boiler economizer is fitted with a valved bypass, Coast Guard Regulations... Q58:During initial starting of the standby turbine-driven boiler feed pump, which of... Q270:Which action should be taken if the water level in the boiler gage glass drops o...
Ready to test your knowledge?
Take a Steam Plants - 1st Asst/Chief Practice ExamOfficial Resources