The test consisted of 80 random questions. Total questions on this topic: 135
Your result: 40%
Right answers:
1
What do the intersecting horizontal lines signify in the diagram?
Correct answer:
They show the actual angle of trim.
Your Answer:
The change of draft after trimming.
2
What is initial stability?
Your answer is correct:
It is the stability of the vessel in her initial position, and is expressed by metacentric height.
3
You are underway on a power driven vessel in open water, when you see another power driven vessel approximately five miles straight ahead on an opposite course. What action do you take?
Your answer is correct:
Make a bold alternation to starboard and pass on his port side.
4
Name the two (2) different lubrication oil circuits of a steam turbine:
Your answer is correct:
The bearing and gear oil circuit/the governor oil circuit.
5
What is the main advantage of plate heat exchangers?
Your answer is correct:
More efficient and take up less space.
6
Boiler feed water is water:
Correct answer:
Taken from the condenser and fed back to the boiler.
Your Answer:
Used to cool steam back into water.
7
In which way make intake of poisonous material occur?
Your answer is correct:
All mentioned.
8
Which way does the steam pass through in the system?
Correct answer:
From the high pressure turbine to the low pressure turbine.
Your Answer:
From the supply valve to the high pressure turbine.
9
You are to release the towing wire with forerunner. You have 3 men with you to do the work. How do you do it in a safe way?
Your answer is correct:
Use the winch. Forerunner and wire stopper to pick up the slack and stop the wire. One man operating each. Make the forerunner fast on the bit, releasing the eye of wire and the stopper, lower the wire easy by forerunner.
10
What is prismatic co-efficient?
Your answer is correct:
Volume of displacement / (midship area × LBP). Also = cb / cm.
11
How often shall each member of the crew participate in an abandon ship drill?
Your answer is correct:
Once every month.
12
What is a “Rescue Unit” (RU)?
Correct answer:
A unit composed of trained personnel suitability equipped for expeditious search and rescue.
Your Answer:
A unit ready for search and rescue operations at sea any time of the day.
13
If you have to carry out hot work close to a smoke detector in the engine room, what precautions should be taken?
Correct answer:
Notify master, deck officer and engineers in charge. The loop for this special senseor to be switched off and take normal precautions for hot work.
Your Answer:
Notify Deck officer in charge that a fire alarm may occur.
14
The muster list shall show the duties assigned to the different members of the crew. Which of the given duties do not necessarily have to be included in the muster list?
Correct answer:
Clearing escape routes.
Your Answer:
Preparation and launching of survival crafts.
15
How do you consider the indicated speed for berthing?
Correct answer:
Too fast.
Your Answer:
It is up to the pilot to decide.
16
Your vessel is to unmoor. Two tugs will assist at the unmooring. Which position and how do you want to use the tugs?
Your answer is correct:
Fast FWD and AFT in centre lead to pull the vessel out from the jetty and make it in position for voyage.
17
Anyone of the crew who is assigned to watch duties in ports has a number of important tasks to carry out. Which one of the listed tasks has to be included in the watchman’s duties?
Correct answer:
Checking the moorings for tightness/slack.
Your Answer:
Checking the number of persons entering/leaving the vessel.
18
What is the formula to calculate the volume of displacement?
Correct answer:
B by Km by d by cb.
Your Answer:
L by B by d by cb.
19
The vessel will anchor with pilot onboard. You are the duty officer on the bridge. What is your main duty?
Correct answer:
Check the position only.
Your Answer:
Follow the master’s order.
20
What is the reason for too rising cooling water temperature at outlet of individual cylinders?
Correct answer:
Cooling water spaces insufficiently vented.
Your Answer:
Compression pressure too low.
21
On a steamship at sea, electricity is supplied by:
Correct answer:
Turbo alternators.
Your Answer:
The main engine.
22
What is a pro-metacenter?
Correct answer:
This expresses KM as moving away off the centreline at large angles of heel.
Your Answer:
It is the ability of a vessel to return to an upright position.
23
Which one of the listed fire extinguishing medium is most effective against an open oil fire?
Correct answer:
Foam.
Your Answer:
Powder.
24
Which of these requirements regarding lifebuoys corresponds to the SOLAS regulations?
Correct answer:
It must be constructed of inherently buoyant material.
Your Answer:
If fitted with light or smoke signal, it must have a mass less than 4 kgs.
25
Which alarm and shut-down device is fitted on the thrust bearing assembly?
Your answer is correct:
The axial clearance alarm.
26
Why is the maximum pressure in a plate heat exchanger usually limited to about 10 bar?
Correct answer:
Difficult to seal plates above this pressure.
Your Answer:
Pump capacity.
27
Which of the following is true when comparing plate type with shell and tube type heat exchangers?
Correct answer:
All of the above.
Your Answer:
The capacity can easily be changed.
28
In case of a fire inside the acetylene-line in the AC/OX gas welding equipment, what action is deemed necessary?
Your answer is correct:
Close the valves on both acetylene and the oxygen bottles.
29
On the air compressor crankcase, there is a small valve that let’s off pressure. What should be done if oil is present with air?
Correct answer:
Overhaul the compressor unit.
Your Answer:
Block off the valve.
30
The condenser in a steam plant is where:
Correct answer:
Steam is turned back into water.
Your Answer:
Low pressure steam is produced.
31
Your vessel is to turn in a narrow canal by use of one tug (turn to port with the bow). In which position and how would you use the tug? Vessels engine will be used as well.
Correct answer:
Make the tug fast on port shoulder to pull.
Your Answer:
Make the tug fast on starboard shoulder to push.
32
When you join a new ship, how are you informed about safety rules, alarm instructions and your own duties in case of an emergency?
Your answer is correct:
By muster lists exhibited in conspicuous places.
33
Which part in this diagram is the high pressure turbine?
Your answer is correct:
2.
34
Modern high pressure boilers produce which of the following?
Your answer is correct:
Superheated steam.
35
Which of the following statements regarding steam turbines is NOT true?
Correct answer:
From the HP turbine, the steam then goes to the condenser.
Your Answer:
The HP turbine is smaller than the LP turbine.
36
Self-igniting lights on lifebuoys must either burn continuously or flash at a specified rate for a period of at least:
Correct answer:
2 hours.
Your Answer:
90 minutes.
37
How is bank effect felt in a vessel?
Correct answer:
The vessel’s bow is pushed away from the nearest bank.
Your Answer:
The whole vessel is drawn in parallel to the nearest bank.
38
Which position is the best to stop bleeding from the nose?
Correct answer:
Sitting on a chair, leaning forward with two fingers pressing the nose together.
Your Answer:
Laying on the back, leaning the head as much as possible.
39
What is the reason for the effect we call squat?
Correct answer:
Increased velocity and decreased water pressure around the ship’s hull.
Your Answer:
Decreased velocity and increased water pressure around the ship’s hull.
40
What activity will have the greatest fire fighting effect in case of a fire?
Correct answer:
Extinguishing attempt is started immediately.
Your Answer:
All fire fighting teams are organized as soon as possible.
41
The ship’s training manual must contain instructions and information on the life-saving appliances carried onboard. Which of these duties must be included?
Your answer is correct:
Correct donning of life jackets.
42
What is the most dangerous overtaking situation shown on the sketches?
Correct answer:
A large vessel overtaking a small vessel with a little difference in speed between the two vessels.
Your Answer:
A large vessel overtaking a small vessel with big difference in speed between the two vessels.
43
What effects does freeboard have on a vessel’s dynamical stability?
Correct answer:
As freeboard increases, the range of stability also increases, and this in turn leads to a greater dynamical stability.
Your Answer:
It does not have any effect on dynamical stability.
44
Which of the following is a rotary compressor?
Your answer is correct:
Diesel engine charge air compressor.
45
The indications of a faulty refrigeration compressor valve are:
Correct answer:
Any of the alternatives.
Your Answer:
Low head pressure, high suction pressure.
46
What is the purpose of the corrugations on a plate heat exchanger?
Your answer is correct:
All of the above.
47
What is item No. 9 shown in the diagram, fitted between evaporator and condenser of the fresh water generator?
Your answer is correct:
A water deflector.
48
What kind of safety protection is to be weared during a mooring operation?
Your answer is correct:
Helmet, safety shoes, gloves and protecting cloths.
49
How far from the coast is it permitted to use low-pressure evaporation to produce drinking water?
Correct answer:
20 miles.
Your Answer:
30 miles.
50
How can you minimize the squat effect?
Correct answer:
Decrease the speed as much as practicable.
Your Answer:
Increase speed if the ship is not already on full ahead.
51
What is the centre of pressure?
Correct answer:
It is the pressure in the centre of a specific tank.
Your Answer:
It is the part that is least likely to give way to external pressure.
52
Unconscious casualties who are brething and whose hearts are beating should be placed in the recovery position. What is the recovery position?
Correct answer:
As shown in figure 1.
Your Answer:
As shown in figure 3.
53
How many rocket parachute flares are carried in each lifeboat?
Correct answer:
4.
Your Answer:
6.
54
How would you increase the KG of a ship, loaded with a timber cargo, that has become unstable?
Your answer is correct:
By filing the small divided double bottom tanks on the lower side, while jettisoning the deck cargo from the higher side.
55
The ship’s training manual must contain instructions and information on the life-saving appliances carried onboard. Which of these duties must also be included?
Correct answer:
Correct method of release of survival craft from launching appliances.
Your Answer:
Correct donning of fire protective clothing.
56
How is shallow water effect felt in a vessel?
Your answer is correct:
The vessel becomes sluggish in responding to the rudder.
57
How is temperature controlled in a steam oil heater?
Your answer is correct:
Steam outlet valve throttled.
58
What is the source of energy used to convert salt water into fresh water in the fresh water generator?
Correct answer:
The waste heat from the main engine.
Your Answer:
The vacuum and ejector pump.
59
How many hand flares should each lifeboat normally carry?
Correct answer:
6.
Your Answer:
4.
60
In a refrigeration system, a fluid that serves only as a heat carrier is called the:
Correct answer:
Secondary refrigerant.
Your Answer:
Condensing refrigerant.
61
How do you ensure reliable results from an inclining experiment?
Your answer is correct:
Perform test in calm conditions, with slack moorings, with minimum number of personnel and minimise free surface effects of liquids.
62
What part in this diagram is the low pressure turbine?
Correct answer:
1.
Your Answer:
4.
63
What is meant by “synchronism or resonance”?
Your answer is correct:
This is a dangerous condition that occurs when the ship’s still water period and the apparent wave period are equal.
64
What is the required salinity of the fresh water produced as drinking water onboard?
Your answer is correct:
Below 7 ppm.
65
What are “cross curves” of stability used for onboard a ship?
Your answer is correct:
Obtaining statical stability curves at known displacements.
66
What is the BM for a box-shaped vessel in terms of breadth and draught?
Your answer is correct:
Breadth squared / 12 × draught.
67
The diagram shows loadline marks. How is the distance between S and T calculated?
Correct answer:
One forty eighth of the summer draft.
Your Answer:
One sixtieth of the summer draft.
68
Superheated steam is steam:
Correct answer:
That has been heated until it is “dry”.
Your Answer:
That can be used for heating the accommodation.
69
When cross-flooding arrangements to correct unsymmetrical flooding and excessive heel angles in damaged condition are installed in passenger ship’s, what is the maximum time allowed for equalization?
Correct answer:
15 minutes.
Your Answer:
30 minutes.
70
What is the effect on draft caused by a vessel heeling or listing?
Your answer is correct:
The draft is increased by the difference in the heeled draft measured by a straight line in tangent with the keel, and the draft before heeling.
71
What is the general emergency alarm signal to be sounded by the ship’s whistle and alarm bells in case of an emergency situation?
Your answer is correct:
Seven short blasts followed by one prolonged blast.
72
A burn may occur when electricity of high current and voltage passes through the body. Most damage occurs at the points of entry and exit of electricity. What is the treatment for electrical burns?
Your answer is correct:
Place sterile dressing over the burn and secure with a bandage.
73
The Disc type oil separator can usually separate water from oil when processing oils between which density ranges?
Correct answer:
0,78 to 0,98.
Your Answer:
0,87 to 0,95.
74
What are “hydrostatic curves” used for in ship calculations?
Correct answer:
Mainly for trim calculations for predicting end draughts.
Your Answer:
For pressure at various depths in oil fuel bunkers.
75
Who is the leader of the lifeboat drill (abandon ship drill)?
Correct answer:
The appointed lifeboat commander.
Your Answer:
Senior deck officer.
76
What kind of shaft seals are used on this high pressure turbine?
Correct answer:
Labyrinth seals.
Your Answer:
Mechanical seals.
77
What is part No. 3?
Your answer is correct:
Turbine drive gear train.
78
In a distress situation, how many times or for how long should the emergency alarm signal be sounded?
Correct answer:
Until all crew members and passengers have reported to their respect muster stations.
Your Answer:
3 times.
79
A receiver in a refrigeration system is used to:
Correct answer:
Store the refrigerant.
Your Answer:
Separate oil from the refrigerant.
80
To get the best possible efficiency from refrigerator evaporators, the superheat should be regulated to: