Competence 2

76問 • 1年前

問題一覧

Which of the following is a block having two sheaves of different diameters, placed in the same plane one above the other ?

Block Fiddle

A chain bridle is used when towing astern because it?

provides an effective catenary and absorbs shock dute to its weight

Pedestal cranes have limit switches to restrict the movement of which function?

Slew travel limits

When required to work in an area where explosive gases may accumulate, you should use hand tools which are ?

nonferrous

How should you signal the crane operator to lower the boom and reaise the load ?

Extend arm with thumb pointing downward and flex fingersin and out

Which of the following statements is/are TRUE regarding crane operations?

The crane operator and signalman muste be familiar with hand signals

In perpartaion for receiving chilled reefer cargo, the reefer space has been precooled for over twentyfour hours. Loading may begin when the space has been cooled to a temperature between

28°F (-2À°C) and 40À°F(4À°C)

After installing a new hydraulic pump in a system, what special attention should be given to the hydraulic system?

The filters and strainers be check frequently

The midships house of your break bulk ship is constructed with an interior stair tower from the main deck to the bridge. Under what circumtances may the doors from each doors from each deck to the stair tower be kept open when underway?

They may be kept open if they can be automatically closed from the bridge

How can the error be corrected when writing in the official log book?

Cross out the error with single line and rewrite the entry correctly.

What is the curve representing vertical sections parallel to the cental longitudinal vertical plane of the bow end of a ship

Bow lines

Which of the following statement(s) is / are FALSE a twin pedetal crane set

The cranes are powered by independent internal combustion power units.

Which space(s) is (are) NOT exempt when measuring gross tonnage?

Cargo holds

if a leak is suspected in a tube heat exchanger, what would be the first to checked?

Tightness of flared tube end

Which statement concerning the lashings of containers with solid bar or wire rope lashings is TRUE ?

Stack weights should be less when a solid bar lashing as compared to a wire lashing

On a vessel proceeding from a very cold to a warm climate with a cargo of non-hygroscopic nature in the holds, which is TRUE?

There is danger of heavy cargo sweat if outside air in introduced by ventilation

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 I and corrosive

Who should be notified prior to starting up a crane?

The engine room

Certain cargoes must be segragated because of their

Inherent characteristics

Which of the following is an outside are on a vessle's hull from bow stern between certain waterlines to which special air, water, and grease-resisting paint applied?

Boot topping

Routine maintenance on a Central Control Room hermitically sealed air conditioning unit should include

Changing the air filter

Which of the following statements is TRUE regarding crane operations?

The crane operators and signal ma nmust be familiar with the correct hand signals

The best way to lift many small articles aboard your vessel is to use with a?

pallet

Which cargoes require strips of common building lathe as dunnage in order to carry away heat generated by the cargo?

Refrigerated fruit that is ripening

Which is black tarlike' composition largely asphalt containing such other ingredients as rosin, portland, cement, slaked lime, petroleum that is used as protective coating in ballast and trimming tanks, chain lockers, shaft alleys, etc?

Bitumastic

Which of the following is a hatchway or opening in a deck provided with a set of steps or ladders leading from one deck level another for the use of personnel?

Companionway

Before doing any work on a hydraulic system equipped with accumulators, you should

Bleed of all stored energy from the accumulators

The most important rule for the safe operation of boiler is to

Maintain the proper water level at all times

You must shore up the collision bulkhead due to solid flooding forward. The bulkhead approximates an inverted triangle. The center of pressure of the shore on the bulkhead should be located

approximately halfway up the bulkhead

You are requisitioning stores for your tank vessel. What type of matches are permitted aboard?

Safety

Why does many of the micrometers are equipped with a racket stop at the end of the timble?

prevent the user from closing the tool with too much force

What should be done if localized scoring is discovered on the pump shaft sleeve during routine maintenance inspection ?

Correct the cause of the scoring and install a new shaft sleeve

Which part of conventional cargo gear rig provides for vertical control and positioning of a boom?

Topping lift

Which is a piece of plate adjoining the hawse hole, prevent the chafing of the hawser against the cheek of a ship's bow?

Bolster plate

To insure proper seating when closing a valve on a tank, what position should the valve be in?

closed, opened a falf turn, and then closed again

A kind of non-mettalic minerals that can withstand very high temperature and unaffected by steam, petrol paraffin, fuel oil lubricants, is the

Asbestos

When must be the master of a vessel log the position of load line marks in realtion to the surface of the water in the offcial log book?

Prior to getting underway

The process of using zinc, a metal that is resistant to atmospheric corrosion when using a coating for protecting steel is called

Galvanizing

When fueling, it is important to ground the ship with reagard to static electricity, Therefore, you must connect the ?

bonding cable before the fuel hose has been connected

What is smooth, tapered pin, usually of wood, used to open up the strands of a rope for spicing?

fid

Which pieces(s) of equipment is/are required to "twin-up" 30-ton pedestal cranes aboard a crane vessel ?

Equalizing beam

What would be prima facie evidence of unseaworthiness?

Overloading

Which of the following states that the energy existing in a system as a result of relative forces of two or more objects?

Kinetic energy

To avoid shock pressures in the fuel oil filling hoses while you are topping off tanks, the

loading rate should be decreased

The normal and safest way for a s sailor to be lowered in a bosun's chair when descending vertically is ?

for that sailor to feed the hauling part a bosun/s chair hitch

Which is a roof like canopy canvas suspended above a vessel's decks, bridges, etc., for protection against sun and weather ?

Awning

What part of the ground tacke is the most likely to develop fractures due to extensive anchor use ?

Jews/'harp

Which actions(s) are included in crane operation?

Luff, slew, and hoist operations

How should you signal the crane operator to move slowly?

Use one hand to give any motion signal, and place the other hand motionless in front of the hand giving the motion signal

The driving forces of heat transfer by conduction is best described by the

Temperature difference hot and cold regions

When your are securing a steam- reciprocating pump, which valves should you leave open?

steam cylinder drain valve

Which can be prevented only by segregating two lots of cargo into separate holds?

Contamination of a food cargo by an odorous cargo

Which is an inclined platform, fitted at the intersection of the forward weather deck and the shell, for stowing an anchor?

Billboard

Containers of flmmable solids should be conspicuously labeled by the shipper with a

red and white label

How should you signal the crane operator to lower the boom?

With arm extended and finger closed, point thumb downward.

What is the term applied where one flange of a bar is bent from an obtuse angle with the other flange?

Bevel open

Accordi8ng to the regulations, what fire safety control feature is required in quick closing shut off valves?

A fusible link

The maximum theoritical stress that can be developed on a guy in a yard and stay rig is limited by the?

lifting capacity of the of the winch

If the water level cannot be seen in the lower part of the boiler gage glass, which of the following action must be carried out immediately?

Secure boiler fires

Which of the following is a structure built up around amust from the deck to support the heel bearing booms and and to provide proper working clearances when a number of booms are installed on or around one mast?

Boom table

What is the term applied where one flange of a bar is bent to form a acute angle with the other falnge?

bevel closed

When there is excessive formatin of frost in the evaporator coils, what should happen?

reduce efficiency of refrigerating plant

Why is it necessary to transfer fuel oil to the settling tanks, for what purposes?

allow the sediments and water to settle

Which statement about the ventilation of bulk coal is TRUE?

Coal should be surface ventilated only.

Which is characteristic of a "special cargo"

it is of high value or easy pilferable

Which safety precaution(s) should be observed during crane operation?

Using the proper slings or other lifting devices during cargo operations

What is an electrical grounding of a vessel?

stranding

When a fuel oil tank is being topped off during bunkering operation, the tank valve should be closed

after the shore pumps are stopped

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 seawater

Which one of the following mehtod of unloading a low pressure air compressor at start-up is accomplished by?

using temporarily opened cylinder clearance pocket

Corrosive liquids and acids should have which kind of label?

White and black

How is the maximum bursting presure for each cargo hose assembly determined?

four times the sum of the relief valve setting and the static head

Before teh longitudinal carriage feed of lathe is engaged, you must be certain the

carriage clamp screw is loosened

What guide the information on the treatment of illness, which are of a general nature and not predomiinantly concerned with chemical poisoning may be found?

MFAG

The process that occurs when heat is generated by a chemical reaction within a substance and continues to a point of ignition is known as

spontaneous combustion

What is a joint formed when two steel plates are placed end-to-end?

butt

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