WorksheetsDECK MACHINERIES
Total questions: 20
Worksheet time: 10mins
The main purpose of the slewing system in a deck crane is to:
Shift load sideways
Raise boom angle
Hold brake force
Limit drive speed
A windlass gypsy wheel is primarily used to:
Grip anchor chain
Rotate lifting drum
Cool motor windings
Support hull plating
A winch drum controls rope movement mainly by:
Winding and unwinding
Heating the gearbox
Venting air pockets
Centering load path
Hydraulic systems in deck cranes operate by:
Pressurized oil flow
Stored tank water
Cooled exhaust gas
Static deck air
During anchor heaving, the windlass prevents overload by:
Using torque limits
Adding fuel mix
Heating chain line
By-passing sea flow
A rising oil temperature in a crane hydraulic tank usually indicates:
Low fluid cooling
Tight wire socket
Wet drum surface
Loose boom pins
Irregular windlass chain movement is commonly due to:
Jammed gypsy pawl
Wide deck vent
Soft hull frame
Short cable ties
Slow winch hoisting speed is often caused by:
Low system pressure
Clean brake pads
Warm rope guide
Wide drum flanges
A deck crane with drifting load after stopping usually has:
Faulty check valve
Dry boom paint
Clean wire tail
New limit pins
Excessive vibration during windlass operation may indicate:
Worn chain pockets
Light deck paint
Soft stern light
Short deck pins
The first stage of an OWS mainly works by:
Using gravity split
Heating tank air
Cooling pump oil
Drying pipe seams
The coalescer unit inside the OWS helps by:
Joining small droplets
Wiping tank walls
Mixing clean water
Venting deck fumes
The OCM (oil content monitor) function is to:
Measure discharge level
Track tank repainting
Count pipe supports
Test deck lighting
Sudden high oil reading in the OCM is often caused by:
Worn coalescer pads
Bright tank lights
Clean drain lids
Fresh hull paint
Abnormal OWS pressure rise typically means:
Blocked internal path
Loose deck ladders
New cabin carpet
Warm galley tiles
Overheating inside the OWS chamber usually indicates:
Low internal flow
Clean drain screens
Fresh pipe clamps
Wide gauge panel
The stripping pump in a ballast system is used to:
Remove final residues
Boost deck bilges
Vent galley drains
Seal cargo vents
The ballast control valve mainly regulates:
Tank fill direction
Breezeways lighting
Floorboard fitting
Hatch cover paint
A drop in pump discharge rate usually points to:
Blocked suction path
Wide deck railing
Thick cabin doors
Loud bridge horn
The manifold arrangement in a ballast system allows:
Selective tank routing
Heating cargo coils
Washing funnel soot
Draining deck drains
