Competency_2
Maritime Knowledge Quiz
Test your maritime knowledge with our comprehensive quiz designed for professionals and enthusiasts alike. This quiz consists of 76 questions that explore various aspects of maritime operations, safety protocols, and vessel management.
Enhance your understanding of:
- Fuel oil management
- Cargo handling and safety
- Marine equipment operations
- Fire safety regulations
A chain bridle is used when towing astern because it?
Makes rigging a swivel necessary
Is easy to connect
Provides an effective catenary and absorbs shock due to its weight
Prevents the tow from yawing by the drag of the chains in a seaway
You are requisitioning stores for your tank vessel. What type of matches are permitted aboard?
Phosphorous
Wooden
Self-extinguishing
Safety
How should you signal the crane operator to lower the boom?
With hands clasped in front of your body.
With arm extended downwards and forefinger pointing down, move hand in small horizontal circles
Extend arm with the palm down, and hold this position rigidly.
With arm extended and fingers closed, point thumb downward.
The best way to lift many articles aboard your vessel is to use with a ?
Snotter
Barrel hook
Spreader
Pallet
Why is it necessary to transfer fuel oil to the settling tanks, for what purposes?
Purge any air in the fuel
Heat the fuel to proper temperature for atomization
Filter and purify it before being pumped to the boiler burners
Allow the sediments and water to settle
To avoid shock pressures in the fuel oil filling hoses while you are topping off tanks, the _________.
Tank vent valves should be clear
Hoses should be looped
Loading rate should be decreased
Oiler should sound all tanks continuously
The driving force of heat transfer by conduction is best described by the _______________.
Conductivity of heat transfer
Temperature difference between hot and cold regions
Size of the heat sink
Amount of heat available in the heat source
If a leak is suspected un a tube heat exchanger, what would be the first to be checked?
Tubes plates for cracking
Tightness of flared tube end
Fixed tube end for security in tube plate
Tubes for damage
When a fuel oil tank is being topped off during bunkering operations, the tank valve should be closed ___________________.
Slowly to prevent surge stresses
Rapidly to prevent overflow
To prevent gas from escaping through the pressure-vacuum relief valves
After the shore pumps are stopped
You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. The center of pressure of the shores on the bulkhead should be located ________________.
Evenly over the surface of the bulkhead
At the bottom of the bulkhead
Approximately halfway up the bulkhead
Approximately two-thirds of the way up the bulkhead
What would be prima facie evidence of unseaworthiness?
Overstowage
Overloading
Overbooking
Overcarriage
Certain cargoes must be segregated because of their _____________.
Danger to humans
Destination
Weight
Inherent characteristics
When fueling, it is important to ground the ship with regard to static electricity. Therefore, you must connect the?
Fuel hose before bonding cable
Bonding cable before the fuel hose has been connected
Bonding cable through a ground fault circuit breaker
Bonding cable only if sparks are seen
Routine maintenance on a Central Control Room hermitically sealed air conditioning unit should include ________.
Changing the air filter
Recharging the system
Power supply failure
Changing compressor lubricant renewing container vacuum
Which of the following is a block having two sheaves of different diameters, placed in the same plane one above the other?
Block Snatch
Block cheek
Block Fiddle
Bobstay
Before doing any work on a hydraulic system equipped with accumulators, you should _________.
Completely charge the accumulators to prevent system energy loss
Bleed of all stored energy from the accumulators
Pump the hydraulic fluid into the accumulators to prevent fluid loss
Drain the accumulators and purged with oxt
In preparation for receiving chilled reefer cargo, the reefer space has been cooled to a temperature between __________________.
42°F (6°C) and 55°F (13°C)
-10°F (-23°C) and +10°F (-12°C)
12°F (-11°C) and 20°F (-7°C)
28°F (-2°C) and 40°F (4°C)
Pedestal cranes have limit switches to restrict the movement of which function?
Slew rate limits
Slew travel limits
Luff rate limits
Swivel power limits
According to the regulations, what fire safety control feature is required in quick-closing shut off valves?
Manual cut off switch
Electrical cut off switch
A fusible link
A water spray actuator
Which if the following is a structure built up around a mast from the deck to support the heel bearings of booms and to provide proper working clearances when a number of booms are installed on or around one mast?
Bolster plate
Boom table
Boot topping
Boom topping
Which space(s) is (are) NOT exempt when measuring gross tonnage?
Galley in a deckhouse
Auxiliary machinery spaces above the deck
Steering gear room
Cargo holds
Corrosive liquids and acids should have which kind of label?
Yellow and white
Skull and crossbones
Red and White
White and black
How can the error be corrected when writing in the official log book?
Remove this page of the log book and rewrite all entries on a clean page
Blot out the error completely and rewrite the entry correctly
Cross out the error with a single line and rewrite the entry correctly
Carefully and neatly erase the entry and rewrite it correctly
The maximum theoretical stress that can be developed on a guy in a yard and stay rig is limited by the?
Weight of the load
Location of the boom
Position of the guy
Lifting capacity of the winch
The most important rule for the safe operation of boiler is to _____________.
Clean the strainer
Clean the burner
Check for the quality of fire
Maintain the proper water level at all times
Which one of the following method of unloading a low pressure air compressor at start-up is accomplished by?
Temporarily discgharging to the air receiver
The use of a precharged accumulator
Holding the L.P. Discharge valve open
Using a temporarily opened cylinder clearance pocket
How is the minimum bursting pressure for each cargo hose assembly determine
Twice the sum of the relief valve setting and static head
3 times the sum of the relief valve setting and the static head
4 times the sum of the relief valve setting and the static head
The sum of the relief valve setting and the static head
Containers of flammable solid should be conspicuously labeled by the shipper with a __________.
Orange label
Green label
Red and White label
Yellow label
How should you signal the crane operator to move slowly?
First tap your elbow with one hand and then proceed to use regular signals
Use one hand to give any motion signal and place the other hand motionless in front of the hand giving the motion signal
Extend arm with the thumb pointing up and flex the fingers in and out for as long as the movement is desired.
First tap the top of your head with your fist and then proceed to use regular signals
On a vessel proceeding from a very cold to a warm climate with a cargo of a non-hygroscopic nature in the holds, which is TRUE?
Danger of heavy ship sweat exists; constant and vigorous ventilation is required.
There is danger of heavy cargo sweat if outside air is introduced by ventilation.
The possibility of any sweat problem, either cargo or ship, is remote.
There is little danger of ship's sweat, slight possibility of cargo sweat; moderate ventilation is needed.
The process that occurs when hear is generated by a chemical reaction with a substance and continues to a point of ignition is know as _____________.
Chemical combustion
Radiation ignition
Spontaneous combustion
Chemical combustion
A package contains nitric acid solution and is radioactive. The radiation level at the package surface is .36 millirems per hour. How should this package be labeled?
Radioactive II and poison
Fissile class I
Radioactive II and oxidizer
Radioactive I and corrosive
The normal and safest for a sailor to be lowered in a bosun's chair when descending vertically is?
By taking several turns of the gantline on a winch drum and then lower the sailor by backing off the winch
For the sailor to feed the hauling part through a bosuns chair hitch
To lead the hauling part to a cleat on a mast and slacking the sailor down
By leading the bight of the hauling part to a rail and taking several turns, then slacking away with the bight
What is a joint formed when two steel plates are placed end to end?
Butt
Bevel
Bond
Seam
The process of using zinc, a metal that is resistant to atmospheric corrosion when using as coating for protecting steel is called?
Dezincification
Erosion
Corrosion
Galvanizing
The midship house of your break bulk ship is constructed with an interior stair tower from the main deck to the bridge. Under what circumstance may the doors from deck to the stair tower be kept open when underway?
They are to be kept close at all times
They can be kept open when the muster list (\"station bill\") has personnel designated to close them incase of fire
They may kept open if they may be automatically closed from the bridge.
They may be kept open if the ventilation or air conditioning system is shut down
Which of the ff. States that the energy existing in a system as a result of relative forces of two or more objects?
Pressure energy
Kinetic energy
Potential energy
Relative energy
How should you signal the crane operator to lower the boom and raise the load?
Extend arm with thumb pointing downward and flex fingers in and out
Extend arm and point finger in the direction to move the boom
With forearm vertical and forefinger pointing up, move hand in small horizontal circle
With arm extended downwards and forefinger pointing down, move hand in small horizontal circle
When required to work in an area where explosive gasses may accumulate, you should use hand tools which are ?
Nonferrous
High carbon steel
Approved by the coast guard
Fixed with ferrous cover
Which part of a conventional cargo gear rig provides for the vertical control and positioning of a boom?
Spider band
Cargo whip
Gooseneck fitting
Topping lift
What is the curve representing vertical sections parallel to the central longitudinal vertical plane of the bow end of a ship?
Breast hook
Brace
Bow sprit
Bow lines
Which actions are included in crane operations?
Pre-operation of the anchor and windlass
All of the above
PREPAIRING steam on deck
Luff, slew, and hoist operations
To ensure proper seating when closing a valve on a tank, what position should the valve be in?
Close against the stop and the locking pin inserted
Close, opened a half turn, and then close again
Set up as tight as possible by hand
Set up as tight as possible by valve wrench
Which of the ff. Statements is/are false regarding a twin pedestal crane set?
All of the above
The cranes are powered by independent internal combustion power units
The cranes may be interconnected for twin operation
The cranes may be operated independently
Which of the ff. Statement is true regarding crane operation?
The aft cranes can be operated from the aft steering stations
The forward cranes can be operated from the bridge
The crane operators and the signal man must be familiar with the correct hand signals
Radio communications allow the crane operator to disregard the use of hand signals
Which of the ff. Is the outside area of a vessel's hull from bow to stern between certain wireless to which special air, water, and grease-resisting paint is applied?
Boom topping
Boom table
Bosom plate
Boot topping
What should be done if localized scoring is discovered on the pump shaft sleeve during routine maintenance inspection?
Reassemble the pump set the governor to obtain a slower speed
Reassemble the pump and provide more water leak off for lubrication
Correct the cause of scoring and install a new shaft sleeve
Check for parallel alignment of the sleeve radial faces
What is an accidental grounding of a vessel?
Squating
Grounding
Stranding
Breaching
Why does many micrometers are equipped with a rachet stop at the end of the timble?
Stop the spindle from sliding out of the barrel
Prevent the user from closing the tool with too much force
Click at the increment of measure
Eliminate rachet movement
Who should be notified prior starting up a crane?
The stevedore foreman
The engine room
All of the above
The pumpman
What guide the information on the treatment of illness, which are of a general nature and not predominantly concerned with chemical poisoning may be found?
MFAG
CHEMICAL TABLES
UN NO.
EmS NO.
What part of the ground tackle is the most likely to develop fractures due to extensive anchor use?
Jews\' harp
Swivel
Anchor shank
Fluke
Which statement about the ventilation of bulk coal is true?
Coal should be through-ventilated to remove methane and reduce the heat of spontaneous combustion
Coal should be ventilated only if tempt. In the center of the cargo exceeds 125*F
Coal should surface ventilated only
Coal should not be ventilated; all oxygen should be excluded from the cargo
Which can be prevented only by segregating two lots of cargo into separate holds?
Overcarriage, overstowage, and short landing
Contamination of dry cargo by a dirty cargo
Contamination of a clean cargo by a dirty cargo
Contamination of a food by an odorous cargo
Which statement concerning the lashing of cotainers with solid bar or wire rope lashing is true?
Stack heights should be reduce when using a solid bar lashing
Stack heights may be increase when using a solid bar lashing
Solid bars should be used for lashing the first tier only. With wire lashing on the higher tier
Stack weights should be less when using a solid bar lashing as compared to a wire lashing
What is the term applied where one flange of a bar is bent to form an obtuse angle with the other flange?
Bevel open
Angle bar
Bevbel close
Bight
What is the term applied where one flange of a bar is bent to form an acute angle with the other flange?
Bevel open
Bevel closed
Bight
Bar angle
Which cargoes require strips of common building lathe as dunnage in order to carry away heat generated by the cargo?
Cardboards cartons of shoes
Canned soups package in crates
Refrigerated fruit that is ripening
Paper products packaged in rolls
After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?
The filter and strainers should be check frequently
All system pressure should be readjusted
The relief valve in the system should be readjusted
The system should be drained and renewed with a fluid of different operating characteristics
Which is characterestics of special cargo?
It must be stowed on deck tube
The cargo gives off toxic gasses when heated
It is high value or easily pilferable
Periodic inspection is required while in transit to prevent spoilage
In order to prevent overheating of the packing in the stern tube stuffing box, what should you do?
The gland is properly adjusted to permit a slight leakage of the sea water
The gland nuts must be tightly taken up to prevent any water leakage
Stave-type rubber seals are used
Cooling water is supplied from the fresh water cooling system
Which of the ff. Statements is true regarding crane operations?
The crane operator and the signalman should be familiar with hand signals
The crane can be operated in shore side
The crane can be operated from the bridge
All of the above
Which is a black tarlike' composition largely asphalt containing such other ingredients as rosin, portland cement, slake lime, petrolume that is used as a protective coating in ballast and triming tanks, chain lockers, shaft alley, etc.?
Bitumastic
Base petroleum primer
Base asphalt primer
Base primer
Which of the ff. Is a hatchway or opening in a deck provided with a set of steps or ladders leading from one deck level to another for the use of personnel?
Counter
Companionway
Cordage
Cradle
When must the master of a vessel log the position of loadline marks in relation to the surface of the water in the official logbook?
Only when in fresh or brackish water
Prior to getting underway
At the change of every watch
Once a day
Which is a roof like canopy of canvas suspended above a vessel decks, bridges, etc., for protection againts the sun and weather?
Sun roof
Back stay
Canvas roof
Awning
When you are securing a steam - reciprocating pump, which valves should you leave open?
Water cylinder drain valve
Steam supply valve
Steam exhaust valve
Steam cylinder drain valve
Which safety prcaution should be obsreved during crane operations?
Checking proper lifting from beneath the load during cargo operation
Relaying communication to port agents on the pier during the cargo hoist
All of the above
Using the proper slings and other lifting devices during cargo operations
When there is excessive formation of frost in the evaporator coils, what should happen?
Keep compartment cooler
Lessen load on compressor
Reduce efficiency of refrigerating plant
System in normal condition
A kind of non metallic minerals that can withstand very high temp. And unaffected by steam, petrol paraffin, fuel oil and lubricants, is the _____?
Lignum vitae
Polyvinlyn chloride (PVC)
Asbestos
Steel
Which is a piece of plate adjoining the hawse hole, to prevent the chafing of the hawser againts the cheek of the ship's bow?
Bosom plate
Bobstay plate
Bolster plate
Bolting plate
What is a smooth, tapered pin, usually of wood, used to open up the strands of a rope for splicing?
Fid
Bench hook
Batten
Awl
If the water level cannot be seen in the lower part of the boiler gage glass, which of the ff. Actions must be carried out immediately?
Blowdown the boiler
Increase the feed water going to the boiler
Check dc water level
Secure the boiler fires
Which is an inclined platform fitted at the intersection of the forward weather deck and the shell, for stowing an anchor?
Poop deck
Billboard
Forecastle
orlop deck
Which piece of equipment is required to twin up 30 ton pedestal cranes aboard a crane vessel?
Equalizing beam
All of the above
Portable power swivel
20 foot container spreader
Before the longitudinal carriage feed of lathe is engage, you must be certain the ______?
Carriage stop clamp is tightened
Carriage clamp screw is loosened
Thread dial indicator is zeroed
Spindle clutch is disengage
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