Engineering

Question 1

What are the three types of propulsion controls for controlling the speed of the engines and pitch of propellers?

Answer 1

Pilothouse Control, ECC Control, and Emergency Manual (EMC)

Question 2

Pilothouse Control (PHC)

Answer 2

Most common method, EOT in the pilothouse directly and automatically controls the CGMCS in ECC

Question 3

ECC Control

Answer 3

Used during initial response to casualties, EOT in ECC inputs directly and automatically to CGMCS

Question 4

Emergency Manual Control (EMC)

Answer 4

Independent from CGMCS, manually controls engine speed and pitch

Used during: Casualty to plant, Fueling at Sea, Single engine operations on idle shaft

Question 5

What are the clutch control modes?

Answer 5

Clutch Control Normal (CCN), Clutch Control Pilothouse (CCP), Emergency Manual Engage/Disengage

Question 6

Clutch Control Normal

Answer 6

ECC in control of engaging/disengaging clutches

Question 7

Clutch Control Pilothouse

Answer 7

From pilothouse, clutches will disengage when EOT is brought to HP 0 for more than 3 seconds, clutches will engage when engine is brought out of HP 0 within 350-500 RPM

Used when there’s an increased risk from the propellers: towing, MOB, small boat ops

Induces wear on clutches, not good for long-term use

Question 8

Emergency Manual Engage/Disengage

Answer 8

ECC can clutch/declutch without the protection of automatic permissive

Question 9

Modes of Single Shaft Operation

Answer 9

Freewheeling: Offline shaft spins due to the pitch and water moving through, reduces drag and increases fuel efficiency, max HP is 8

Dragging: Offline propellor at 0% pitch, preventing the shaft from rotating, increases drag and load on the online engine, ensures complete combustion and helps maintain temps, max HP 6

Locked: Shaft is locked, used during casualties to the shaft, shaft seal, clutch, or reduction gear, max HP is 4

Question 10

Restricted Maneuvering Doctrine plant requirement

Answer 10

Both SSDGs online and paralleled, both MDEs online in PHC ready to answer all bells, EDG in auto

Question 11

Reverse Osmosis (R/O) Unit

Answer 11

Shall not be operated within 12 NM from land, harbors, rivers, inlets, bays, and landlocked waters

Question 12

Sewage and gray water, and food discharge

Answer 12

Prohibited within 3 NM of land

Question 13

RMD

Answer 13

In effect when sudden or extreme maneuvering may be necessary for the safe navigation of the ship or to avoid collision

Evolutions where RMD is in effect: Special Sea Detail, Anchor Detail, Nav Detail, Mooring Stations, Low Visibility, Towing, Flight Quarters (I, III, IV, V), General Quarters, Small Boat Evolutions, LE Operations, Fueling at Sea and Replenishment at Sea, MOB

Question 14

Safe to Sail

Answer 14

GPS, eNAv System, Primary Heading Source, Surface Search Radar, Fathometer, Nav Lights/Ship’s Whistle, Anchor/Windlass/Ground Tackle

Question 15

NFU Alarm Meaning and Actions

Answer 15

Check for proper rudder response, means there is a misalignment between the rudder angle indicator and gyro?, send BMOW back to check steering system, call ECC

Question 16

Scenario: You’re on watch and the power goes out

Answer 16

Have QMOW break out loss of power checklist, slowly bring HP to 0

*Loss of power can lead to a crankcase explosion or damage to the shafts

Question 17

What does “ready to answer all bells” mean?

Answer 17

EOW is paying attention and, if needed, can use E-Man to respond to and EOT order from the pilothouse