問題一覧
1
The maximum theoretical stress that can be developed on a guy in a yard in a stay rig is limited by the?
lifting capacity of the winch
2
Why does many of the micrometers are equipped with a rachet stop at the end of the nimble?
prevent the user from closing the tool with too much force
3
After installing the hydraulic pump in a system,what special attention should be given to the hydraulic system?
The filters and strainers should be checked frequently.
4
Before the longitudinal carriage feed of lathe is engaged ,you must be certain the _____.
carriage clamp screw is loosened.
5
How is the minimum bursting pressure for each cargo hose assembly determined?
four times the sum of the relief valve setting and the static head
6
How should you signal the crane operator to lower the boom?
With arm extended and fingers closed, point thumb downward.
7
Which safety precaution(s) should be observed during crane operation?
Using the proper slings or other lifting devices during cargo operations
8
Which cargoes require strips of common building lathe as dunnage in order to carry away heat generated by the cargo?
Refrigerated fruits that is ripening
9
The most important rule for the safe operation of boiler is to ____.
Maintain the proper water level at all times.
10
The best way to lift many small articles aboard your vessel is to use with a?
pallet
11
What is a joint formed when two steel plates are placed end-to-end?
butt
12
You are requisitioning tools for your vessel. What time of matches are permitted on board?
Safety
13
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
14
If the water level cannot be seen in the lower part of the boiler gauge glass, which of the following actions should be carried out immediately?
Secure the boiler fires
15
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
16
Which statement concerning the lashings of containers with solid bar or wire rope lashing is TRUE?
Stack weights should be less when using a solid bar lashing as compared to a wire lashing.
17
When a fuel oil tank is being topped off during bunkering operation, the tank valve should be closed _____.
after the shore pumps are stopped.
18
Which of the following is block having two sheaves of different diameters, placed in the same plane one above the other?
Block fiddle
19
Which characteristic of a "special cargo"?
It is high value or easily pilferable.
20
Which can be segregated only by segragating two lots of cargo into separate holds?
Contamination of a food cargo by an odourous cargo.
21
A kind of non-metallic minerals that can withstand very high temperatures and unaffected by steam, petrol parrafin, and fuel oil and lubricants, is the _____.
Asbestos
22
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.
23
When there is excessive formation of frost in the evaporator coils, what should happen?
reduce efficiency of the refrigerating plant
24
What is the term applied where one flange of a bar is bent to form an acute angle with the other flange?
Bevel closed
25
Which of the following statements is TRUE refarding crane operations?
The crane operators and signalman must be familiar with correct hand signals.
26
Which is a roof like canopy of canvas suspended above a vessel's deck, bridges,etc., for protection against sun and weather?
Awning
27
A chain bridle is used when towing astern because it?
provides an effective catenary and absorbs shock due to its weight.
28
Which is a bar tarlike' composition largely asphalt containing such other ingredients as rosin, portland cement, slaked lime, petroleum that is used as a protective coating in ballast and trimming tanks, chain lockers, shaft alley, etc.?
Bitumastic
29
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 _______.
approximately halfway up the bulkhead.
30
Which statement about the ventilation of bulk coal is TRUE?
Coal should be surface ventilated only.
31
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
32
What is the curve representing vertical sections parallel to the central longitudinal verictal plane of the bow end of a ship?
Bow lines
33
Why is it necessary to transfer fuel oil to the settling tanks, for what purpose?
allow the sediments and water to settle
34
Which of the following is an outside area on a vessel's hull from bow to stern between certain waterlines to which special air, water and grease-resisting paint is applied?
Boot topping
35
The driving force of heat transfer by conduction is best described by the _______.
temperature difference between hot and cold regions
36
When you are securing a steam- reciprocating pump, which valve should you leave open?
Steam cylinder drain valve
37
Certain cargo must be segragated because of their _______.
inherent characteristics
38
Which is an inclined platform, fitted at the intersection of the forward weather deck and the shell for stowing an anchor?
Billboard
39
Which of the following is a structure built up around a mast from the deck to support the heel bearings of booms and provide proper working clearances when a number of booms are installed on or around one mast?
Boom table
40
Which space(s) is(are) NOT exempt when measuring gross tonnage?
Cargo holds
41
On a vessel proceeding from a very cold to a earm climate with a cargo of a nonhygroscopic nature in the holds, which is TRUE?
There is danger of heavy cargo sweat if outside air is introduced by ventilation.
42
Pedestal cranes have limit switches to restrict the movement of which functions?
Slew travel limits
43
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 sea water.
44
Which one of the following method of unloading a low pressure air compressor at start-up is accomplished by?
using a temporarily opened cylinder clearance pocket
45
In preparation for receiving chilled reefer cargo, the reefer space has been precooled over twenty-four hours. Loading may begin when the space has been cooled to a temperature betwen _______.
28 °F(-2°C) and 40 °F(4 °C)
46
Which is a piece of plate adjoining the hawse hole, to prevent the chafing of the hawser against the cheek of ship's bow?
Bolster plate
47
Before doing any work on a hydraulic system equipped with accumulators, you should _______.
bleed of all stored energy from the accumulators.
48
Which part of a conventional cargo gear rig provides for vertical control and positioning of a boom?
Topping lift
49
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
50
What would be prima facie evidence of unseaworthiness?
Overloading
51
How can the error be corrected when writing in the official log book?
Cross out the error with a single line and rewrite the entry correctly.
52
If a leak is suspected in a tube heat exchanger, what would be the first thing to checked?
Tightness of flared tubeend
53
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
54
Containers of flammable solids should be conspicuously labelled by the shipper with a ______.
red and white label
55
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
56
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 to another for the use of personnel?
Companionway
57
What is the term applied where one flange of a bar is bent to form an obtuse angle with the other flange?
Bevel open
58
What part of the ground tackle is the most likely to develop fractures due to extensive anchor use?
Jews/' harp
59
What is an accidental grounding of a ship?
stranding
60
The process of using zinc, a metal that is resistant to atmospheric corrosion when using as coating for protecting is called _____.
Galvanizing
61
Which of the following statements is TRUE refarding crane operations?
The crane operators and signalman must be familiar with hand signals.
62
When fueling, it is important to ground the ship with regard to static electricity. Therefore, you must connect the?
bonding cable before the fuel hose has been connected.
63
Which of the following statement(s) is/are FALSE refarding a twin pedestal set?
The cranes are powered by independent internal combustion power units.
64
Which piece(s) of equipment is/are required to "twin-up" 30-ton pedestal cranes aboard a crane vessel?
Equalizing beam
65
The normal and a safest way for a sailor to be lowered in a bosun's chair when descending vertically is?
for that sailor to feed the hauling part through a bosun's chair hitch
66
Who should be inform prior to starting up a crane?
The engine room
67
To avoid shock pressures in the fuel oil filling hoses while you are topping off tanks, the _______.
loading rate should be decreased.
68
When required to work in an area where explosive gases may accumulate,you should hand tools which are?
nonferrous
69
When must the Master of a vessel log the position of load line marks in a relation to the surface of the water in the Official Logbook?
Prior to getting underway
70
The midships house of break bulk ship is constructed with an interior stair tower from the main deck to the bridge.Under what circumstances may the 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.
71
Corrosive liquids and acids should have which kind of label?
White and black
72
Routine maintenance on a Central Control Room hermitcally sealed air conditioning unit should be ______.
changing the air filter.
73
According to the regulations, what fire safety control feature is required in quick-closing shut off valves?
A fusible link
74
Which action(s) are included in crane operations?
Luff, slew and hoist operations
75
To ensure a proper seating when closing a valve on a tank, what position should be the valve be in?
closed, opened a half turn, and then closed again
76
What is a smooth, tapered pin, usually a wood, used to open up the strands of a rope for splicing?
fid