The test consisted of 80 random questions. Total questions on this topic: 135
Your result: 69%
Right answers:
1
Name the two (2) different lubrication oil circuits of a steam turbine:
Correct answer:
The bearing and gear oil circuit/the governor oil circuit.
Your Answer:
The front bearing circuit/the rear bearing circuit.
2
What is the centre of pressure?
Your answer is correct:
It is the pressure in the centre of a specific tank.
3
You want to turn your vessel in a narrow canal by use of two tugs with same power. The wind varies in the range moderate/strong. Where/how will the tugs be used?
Your answer is correct:
Pushing, made fast in the vessel.
4
What is the purpose of the corrugations on a plate heat exchanger?
Your answer is correct:
All of the above.
5
How many rocket parachute flares are carried in each lifeboat?
Your answer is correct:
4.
6
If you have to carry out hot work close to a smoke detector in the engine room, what precautions should be taken?
Your answer is correct:
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.
7
Which of the following statements regarding steam turbines is NOT true?
Your answer is correct:
From the HP turbine, the steam then goes to the condenser.
8
The Disc type oil separator can usually separate water from oil when processing oils between which density ranges?
Your answer is correct:
0,78 to 0,98.
9
What is the minimum allowable value for GM?
Your answer is correct:
0,15 m.
10
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.
11
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.
12
Who is the leader of the lifeboat drill (abandon ship drill)?
Your answer is correct:
The appointed lifeboat commander.
13
In the shown situation, the bow of your ship is pushed away from the bank. How can you handle this?
Your answer is correct:
Give starboard rudder in order to balance the force of the bank effect and rudder effect.
14
Your ship is operating with a right handed propeller. Before coming astern, how should you apply the rudder?
Your answer is correct:
As with No. 2.
15
In a two stage compressor, you will find pistons with different diameters (one is bigger than the other). Which one of the following statement is correct?
Your answer is correct:
The smallest diameter piston is the stage two piston.
16
Which of the following statements regarding main boilers is NOT true?
Correct answer:
The feed water need not be very pure.
Your Answer:
The burners could be at the top firing down.
17
How is temperature controlled in a steam oil heater?
Correct answer:
Steam outlet valve throttled.
Your Answer:
Steam supply pressure reduced.
18
What is the purpose of the sea water pump item No 13?
Your answer is correct:
To drive the air ejector of the evaporator.
19
Which of these requirements regarding the launching and recovery arrangements for rescue boats corresponds to the SOLAS regulations?
Your answer is correct:
Rapid recovery shall be possible with the boat’s full complement of persons and equipment.
20
Which part in this diagram is the high pressure turbine?
Your answer is correct:
2.
21
What liquid is present in the collecting point at the bottom of the evaporator?
Your answer is correct:
Brine.
22
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 pilots order.
23
What is the absolutely main purpose of fighting a fire onboard?
Your answer is correct:
Rescuing of life.
24
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.
25
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.
26
How far from the coast is it permitted to use low-pressure evaporation to produce drinking water?
Your answer is correct:
20 miles.
27
What part in this diagram is the low pressure turbine?
Your answer is correct:
1.
28
Unconscious casualties who are brething and whose hearts are beating should be placed in the recovery position. What is the recovery position?
Your answer is correct:
As shown in figure 1.
29
Unconscious casualties who are breathing and whose hearts are beating should be placed in the recovery position. Why is this position so important?
Your answer is correct:
The position ensures that an open airway is maintained.
30
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 term used to indicate a vessel has a more than adequate GM.
31
How is shallow water effect felt in a vessel?
Your answer is correct:
The vessel becomes sluggish in responding to the rudder.
32
Superheated steam is steam:
Your answer is correct:
That has been heated until it is “dry”.
33
What are “cross curves” of stability used for onboard a ship?
Your answer is correct:
Obtaining statical stability curves at known displacements.
34
What is the “wave period”?
Your answer is correct:
It is the time in seconds between successive wave crests or troughs, passing a fixed point.
35
A receiver in a refrigeration system is used to:
Correct answer:
Store the refrigerant.
Your Answer:
Condense the refrigerant.
36
How can you minimize the squat effect?
Correct answer:
Decrease the speed as much as practicable.
Your Answer:
Maintain your course and speed.
37
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.
38
What is a “Rescue Sub-Centre” (RSC)?
Your answer is correct:
A unit subordinate to a rescue co-ordinating centre.
39
What is the minimum allowable value for GZ?
Your answer is correct:
0,2 m.
40
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.
41
What can be used to reduce the effect of the state of sea-waves?
Your answer is correct:
Vegetable/fish oil.
42
What kind of shaft seals are used on this high pressure turbine?
Your answer is correct:
Labyrinth seals.
43
What effects does freeboard have on a vessel’s dynamical stability?
Your answer is correct:
As freeboard increases, the range of stability also increases, and this in turn leads to a greater dynamical stability.
44
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 launching, boarding and clearing of survival craft and rescue craft.
45
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.
46
What is item No. 9 shown in the diagram, fitted between evaporator and condenser of the fresh water generator?
Correct answer:
A water deflector.
Your Answer:
A desalinator unit.
47
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.
48
What is the formula to calculate the volume of displacement?
Correct answer:
B by Km by d by cb.
Your Answer:
L by Gm by KG.
49
Serious tube leakage in the air ejector condenser assembly will cause:
Correct answer:
Loss of vacuum.
Your Answer:
Faulty steam pressure.
50
What kind of steam is feeding the astern turbine fitted on the same rotor as the LP turbine?
Correct answer:
Steam from the main steam manifold via manoeuvring stand.
Your Answer:
Exhaust steam from the high pressure turbine.
51
What is the required salinity of the fresh water produced as drinking water onboard?
Correct answer:
Below 7 ppm.
Your Answer:
Below 2 ppm.
52
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?
Your answer is correct:
Correct method of release of survival craft from launching appliances.
53
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 small vessel overtaking a large vessel with a little difference in speed between the two vessels.
54
The condenser in a steam plant is where:
Your answer is correct:
Steam is turned back into water.
55
You are berthed with a steady offshore beam wind of 30 knots. This wind suddenly increases to 60 knots. When this happens, the force driving the vessel off-berth will be:
Correct answer:
Quadrupled.
Your Answer:
Doubled.
56
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.
57
Turbo alternators perform which of the following tasks?
Correct answer:
Supplying electricity on steamships when the main boiler is operating.
Your Answer:
Supplying electricity from diesel engines.
58
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?
Your answer is correct:
Clearing escape routes.
59
What is part No. 3?
Your answer is correct:
Turbine drive gear train.
60
What is the main advantage of plate heat exchangers?
Correct answer:
More efficient and take up less space.
Your Answer:
Requires less maintenance.
61
If mouth-to-mouth (M-T-M) ventilation by itself is unsuccessful and the casualty’s heart stops or has stopped beating, you must perform external chest compression (ECC) in conjunction with M-T-M. What is the complete rate when performing ECC?
Your answer is correct:
Complete 15 compressions at the rate of 80 compressions per minute.
62
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.
63
What does permeability mean?
Your answer is correct:
The relationship between the volume of a compartment and the volume available for water if bilged.
64
Regarding feed water, which of the following statements is NOT true?
Your answer is correct:
Feed water in HP boilers is normally pumped with a single stage centrifugal pump.
65
Does liquid turbulence improve the efficiency of a plate heat exchanger?
Your answer is correct:
Yes.
66
Modern high pressure boilers produce which of the following?
Your answer is correct:
Superheated steam.
67
What is a “Rescue Unit” (RU)?
Your answer is correct:
A unit composed of trained personnel suitability equipped for expeditious search and rescue.
68
What is part number 1 called?
Correct answer:
The service tank.
Your Answer:
The expansion tank.
69
Which alarm and shut-down device is fitted on the thrust bearing assembly?
Correct answer:
The axial clearance alarm.
Your Answer:
The low lub oil flow alarm.
70
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, holding a wet cold towel on top of the nose.
71
On a steamship at sea, electricity is supplied by:
Your answer is correct:
Turbo alternators.
72
If your vessel is tending to “synchronise”, what should you do to alter this condition?
Your answer is correct:
You should try to alter the wave period by altering course and by reducing speed.
73
Where can you find out if you belong to the forward mooring gang or the aft mooring gang?
Your answer is correct:
Posted on the notice board onboard.
74
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.
75
What is the BM for a box-shaped vessel in terms of breadth and draught?
Your answer is correct:
Breadth squared / 12 × draught.
76
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.
Your answer is correct:
Make the tug fast on port shoulder to pull.
77
What is the purpose of the control position on an enclosed lifeboat?
Your answer is correct:
It’s the position from which the boat is steered and the safety systems are operated.
78
How will the ship behave if you have a black out in the situation sketched below?
Correct answer:
She will turn to port and the speed will drop gradually.
Your Answer:
She will turn to starboard and the speed will slowly drop.
79
After obtaining permission from the duty deck officer, under what conditions would the process of soot blowing the boiler tubes be most beneficial?
Your answer is correct:
When the boiler is firing on high rate.
80
Which of these requirements regarding lifebuoys corresponds to the SOLAS regulations?
Your answer is correct:
It must be constructed of inherently buoyant material.