第一章 公共用语
1.How many countries have you ever been to?
I've been to many countries, such as Singapore, Japan, Australia and so on.
2. How long have you worked on board? For 5 years.
2. Which certificate do you have now? A fourth engineer’s certificate now.
3. What is your marital status? How many departments are there on board? I'm single./ I am married.
There are three departments: engine department, deck department and service department. 4. How many people are there in your family? Are you married?
There are three people in my family. No, I'm still single. / Yes, I am married. 5,How many countries have you been to? I have been to four countries.
6. Which classification society is your ship registered with? CCS.
7.Please tell me the minimum safe oxygen percentage for the safety of the workers in an enclosed space. 18%.
8. When did you begin to work on board? What kind of ship have you worked on? In 2003. Container ship.
9. Can you tell me what is the most important thing for a seafarer? Safety.
10.What kinds of main engine and generator engine have you worked on?
Large slow speed crosshead type marine diesel engine and high speed four stroke engine for A.C generator.
11. Have you worked any ship that caused damage in critical equipment?
No, I haven’t. / Yes, I have worked on a bulk carrier that the main engine had damaged. 12. How do you make your maintenance schedules?
It’s based on ship’s “Planned Maintenance System” (PMS) and the machinery running hours records. 13. Could you list international conventions concerning maritime shipping? STCW, SOLAS, MARPOL and so on.
14. Could you tell the usages of the STCW convention?
To provide international standards of training, certification, and watch-keeping for seafarers. 15. What is the purpose of classification society? Could you list some of them?
To evaluate the condition of the ship, the management system of marine company and the ships. Lloyd’s, ABS, CCS.
16. Could your list different kinds of ship’s surveys?
Yes. Annual survey, special survey, damage survey, docking surveys and so on. 17. What does UMS stand for? Have you served UMS? Unattended Machinery Space. Yes, I have served UMS.
18. Have you ever experienced PSC inspection? Where and when was your last inspection? Yes, I have. It was in Hamburg last month.
19.What should be paid attention to in the overhaul of a cylinder?
Every operation must be complied with the precaution measures regulated in the SMS.
20.Before entering an enclosed space such as ballast tank, what action will you take? To vent the space and check the oxygen content. 21.Which certificate do you have now? I have the second engineer’s certificate.
第二章 机舱日常业务
1. Please introduce one type of the main engine.
The main engine is large bore two-stroke crosshead type with turbo- charging system. 2. Why is the two-stroke engine widely used as the main engine on board ship? Because of its long life, low cost and reliability.
3.Please introduce three moving parts of marine main engine. Piston, crankshaft, connecting rod.
4.Please introduce four fixing parts of marine main engine. Bedplate, cylinder block, scavenging air box and frame. 5. What is the foundation of diesel engine? Bedplate.
6. What are the function and feature of the tie rods?
The function is to hold the bedplate, frames and cylinder block together. The feature is long and good tensioning strength.
7. What is used for connecting the piston rod and connecting rod? Crosshead.
8. What is hot work?
Gas welding and electric welding.
9. Please introduce fuel injection process of electronically controlled main engine. It can change the injection timing and injection pressure according to the load. 10.Please introduce dual fuel technology (双燃料技术) of main engine. This kind of main engine can burn both natural gas and fuel oil. 11.How to control fuel oil viscosity of main engine? By controlling the oil temperature.
12. Please introduce two sub-systems（子系统） of fuel oil system. Fuel supply and fuel injection system.
13.Please speak out the function of the fuel oil viscosity regulator. To control the viscosity of fuel oil.
14.How does the fuel oil viscosity regulator work? By regulating the fuel oil's temperature.
15.Please tell at least three composition of fuel oil. Sulphur, carbon, ash content.
16.Please name at least three of main factors to select a fuel oil. Viscosity, gravity and flash point.
17.When do you clean the fuel oil filters? When the pressure drop is excessive.
18. How do you change diesel oil into fuel oil?
Fuel oil heated to proper temperature and open the fuel oil valve. 19. How do you change fuel oil into diesel oil?
Shut the steam valve, decrease the fuel oil temperature, open diesel oil valve. 20. What does VIT stand for? Variable injection timing.
21. What’s the function of the fuel oil separator? To separate impurities and water from the fuel oil. 22. How do you drain off air of the injection pump? By using vent screw.(放气螺钉)
23 What are the two types of cooling system?
The closed cooling system and the open cooling system.
24. What’s the function of the head tank(高位水箱) in the cooling water system? Expansion and make-up of the water, air releasing and water treatment. 25Please introduce the open cooling system.
The seawater is in direct contact with the engine. But it is not found on diesel engine vessels now because seawater is somewhat corrosive.
26.Please introduce the closed cooling system.
In a closed cooling system, the fresh water is circulated through the engine, the engine jackets, the heat exchanger and the circulating pumps to form a continuous circuit which is not open to the atmosphere. 27. Please introduce the central cooling system.
The central cooling system has only one large seawater circulated cooler. It cools a supply of fresh water which then circulates to other individual coolers.
28. What’s the advantage of the central cooling water system? The corrosion problems are much reduced.
29. What is the usual coolant used in the marine diesel engine? Fresh water.
30. Why seawater is not used directly as a coolant in the marine diesel engine? Because it is corrosive.
31. What’s the disadvantage of water-cooling piston? Cooling water leakage can pollute the lube oil. 32. How do you heat the main engine?
By circulating the cooling water which is heated to proper temperature. 33. What’s the advantage of oil-cooling piston? Any leaks will not cause corrosive problem.
34. What’s the function of the lubricating oil used in marine diesel engine?
To provide lubricating film, remove heat, resist oxidation, neutralize acidic products of combustion, and so on.
35.How do you clean the lube oil filters? By washing with diesel oil
36. Why must the cylinder oil have alkalinity? To neutralize acidic condition.
37.What's the function of the cylinder oil? Lubrication, sealing, cleaning and removing heat.
38. How do you start the air compressor?
Check lube oil and cooling water first, then open the drain cock, finally start the air compressor. 39. What do you pay attention to when you stand by engine?
Check various pressure and temperature, warm up the engine, turn the engine with turning gear and so on. 40. Do you know the reasons why the engine does not start on air? Too low starting air pressure, incorrect timing of starting air valve, etc. 41. What should you periodically do for the air reservoir? Drain oily water.
42. What is the function of turning gear?
To make the engine operate slowly for inspection.
43. How do you grind the valve plate of air compressor? Grind it in the path of “8” shape
44.What's the sequence of the four strokes? Suction, compression, expansion and exhaust.
45. What is called a working cycle of a marine diesel engine? The operation between two fuel injections. 46What’s the function of the governor?