轮机英语听力与会话三版口述和问答题答案第一章口述The engine room is the heart of a ship. It is generally located at the stern near the ship bottom. In the engine room, there are a lot of machinery and systems, such as the main engine, the generater engine, boilers, pumps, the refrigerating system, and the air conditioning system. The main engine, also called the main propulsion plant, is the largest and most important one . The modern improvement of control systems results in machinery space remaining unattended for long periods. That is UMS.第二章口述The main difference between the diesel engine and the gasoline engine include: I) the combustion medium of a diesel engine is diesel oil or fuel oil. while that for a gasoline engine is gas oil. 2) the diesel engine is ignited through compression of hot, high pressure oil/air mixture, but the gasoline engine is ignited by electrical spark plug. 3) for diesel engine, the air and oil is mixed inside the cylinder, while for gasoline engine, they arc mixed outside the cylinder.First, I will tell the cadet the importance the engine room. Second, I should introduce the various machinery and systems in the engine room, such as the main engine, the generater engine, boilers, pumps, the refrigerating system, and (he air conditioning system. Third, I will show him how to operate the various equipment and devices safely, and introduce as much safety knowledge as I can.same as question No 2.The power of the diesel engine is transmitted to the propeller through the transmission system. The items of transmission system include various shafts, such as the thrust shaft, one or more intermediate shafts and tail shaft. These shafts arc supported by the thrust block, intermediate bearings and the sterntube bearing. The propeller consist of a boss with several blades,. The thrust is transmitted along the shafting to the thrust block and finally to ship structure.When the ship is sailing at full speed, it need four engines running . When the ship is sailing at half speed, it require two engines running. While the ship is operating at about 30 % of full speed, one engine is enough to meet its power requiement. That is, the ship can be operated with single engine, double engines, or four engines according the load condilion.Generally, when the ship is sailing at sea speed, it has four enginse running,whic it approaches the wharf, it has two.The structure of the main engine is as follows: the construction mainly include bedplate, frame, cylinders, pistons, connecting rod, main bearing and crankshaft. The crankshaft rests in main bearings built into cross girders of the bedplate. On the top of A frames there is a scavenging air box. The bedplate, frames and cylinder blocks are secured together by long tie-rods. A piston consists of a lower part called piston skirt and an upper part called piston crown.Lack of refrigerant, dirty iced evaporator, leaky liquid line solenoid valvewhat equipment is used to handle the anchors? windlass76 please name at least three items of deck machinery Winch,windlass,derrick,barrel77 how do you drain off air of the injection pump.By-using vent screw78 how do you clean the disc of an oil sepatator?With disc cleaner79 What should be prepared before disassembly of cylinder for main engine/anxiliary engine?Special tools, draining off the residual oil and water80 how do you manage sewage?Drop in sterilized medicine regularly, keep the blower in constant working. 第三章1. what may happen if the communication between the engine room and the bridge fails?The ship will be endangered.2 when do you need to communicate with the bridge?when the engine room has any trouble or when standby engine.3 what methods and ways can be used to communication with the bridge?Telephone and telegraph.4 why do you think the records of the communication should be maintained?Because records can serve as evidence in the event of accidents.5 do you think cnglish is very important during the communication?Yes, English is an international language.6 when should you check the engine telegraph?When stand by engine7 how do you check the engine telegraph?We check the engine telegraph with the duty officer by answering his order8 when must you test the steering gear?When standby engine before navigation or maneuvering9 what items of the main engine should you check before starting?Check the reversing and control gear10 how do you test main engine?Turn on the main engine by putting in start air and give a brief trial on power ahead and astern11 what should you prepare for cooling water system wherfstand by engine?cooling water should be at working level and heated to proper temperature.12 what should you prepare for lube oil system whenstand by engine”？Start the lube oil pump,fill the crankcase lube oil drain tank and sump, and so on13 how are you going to change fuel oil over to diesel oil?Preheat fuel oil to proper temperature14 w