Match the questions with the answers.
Variant 1
Vocabulary
Match the words with their definitions.
| vacuum pump for glands | a | is a type of boiler which is installed in the exhaust passage of the main engine and where the exhaust heat energy is utilized to generate steam from fresh water | |
| fresh water generator | b | is a type of supercharging equipment which gives excess fresh air to the engine cylinder during combustion | |
| steam turbine generator | c | the steam turbine shaft is provided with glands where in steam is sprayed at a pressure so that the vacuum inside the turbine casing doesn’t drop | |
| turbocharger | d | generates drinking water from sea water | |
| economizer | e | is done using boilers and economizers which are provided in majority ships and supplied at a pressure to a high speed turbine which is connected to an alternator shaft |
1___, 2___, 3___, 4___, 5___ 10/___
Underline the appropriate words.
1) Voltage reference set enough/too/morelow.
2) Keep/hold/controlgenerator and associated devices clean.
3) A ship consists of a power plant system which makes/conducts/generatesenough power for the propulsion plant machines, engine room and deck machines, and navigation equipment of the ship etc.
4) The shaft-driven machine can be of a low/large/lesscapacity to take the full at sea electrical load.
5) Efficiency is achieved by conditioning the power from the coming form the shaft generator so that a switchboard can add/bring/providea constant voltage and frequency and the correct phase angle to match other generator seta running parallel.
6) The output voltage is small enough to measure/extent/amountit with conventional dc voltmeters.
7) Ordinarily, slip rings and brushes connect the rotor to external shaft/power/boiler.
8) High voltage cables of different voltage ratings are not to be installed in the same/small/differentcable bunch, duct, pipe or box.
9) At sea, when the bow thruster is shut down and auxiliary load is transferred to the main-engine-driven alternator, the diesel engines are working/paused/stopped.
10) Cables and wiring shall be installed and supported in such a manner as to give/avoid/destroy chafing or other damage.
10/___
Fill in the gaps with the words.
| the connection box varnish insulating constant regulate the phases |
1) Terminations in all conductors of high voltage cables are to be, as far as practicable, effectively covered with suitable_______________ material.
2) While a thyristor can be turned on or off, it can also _____________ power using something called phase angle control.
3) The insulating material is said to be ‘suitably coated’ when it is covered with a suitable substance such as _____________ which adequately excludes moisture, dirt and other contaminants to a degree sufficient to provide adequate performance in service.
4) When the lights are out, _____________ are synchronized.
5) Normal diodes need not give a _____________ voltage output, they are just meant for the ac to dc conversion.
6) An information plate is to be provided at or near _____________ giving full information on the system of supply and the nominal voltage (and frequency if AC) of the vessel’s system and the recommended procedure for carrying out the connection.
12/___
Grammar
Choose the correct form of the verbs.
1) The electrician can/could/will be able torepair this generator tomorrow.
2) All the maintenance was/were/aredone by the personnel yesterday.
3) The master have/has/will haveconducted the fire drills today.
4) Keeping watch doesn’t/don’t/isn’tmean sleeping at watch.
5) Our Bosun ordered/has ordered/orderthe ratings to clean the main deck yesterday.
6) The cargo damages/was damaged/will be damagedif the hatch cover isn’t closed correctly.
7) The chief engineer like/likes/will likecoffee with milk.
7/___
Choose the proper word.
1) The majority of modern/more modern/ the most moderntachogenerators are permanent magnet type.
2) Compressors are used for compression of gases by changing/decreasing/increasing the volume and imparting a corresponding increase in pressure.
3) The heat will flow in its natural direction that is from the warmest/warm/warmer material to the colder material.
4) Water-tube boilers have a steam drum at the top, which is partly filled with water and water drums at a lower/low/ the lowest level.
5) Profit of chipping/shipping/camping companies depends on the efficiency with which their operations are carried out at sea.
6) The rotor and rotor blades are driven round with/by/through external power.
7) The general construction of most axial-flow compressors is similar to that by/without/of a steam turbine.
8) There are three main types of compressors which may be used for/at/below gas turbines.
9) Tachgenerators are frequently used to measure the speeds of static/electric/mechanicmotors, engines and the equipment they power.
10) An interlocking arrangement is to be provided in front of/behind/betweenall generators, including the emergency generator and the shore power supply to prevent the shore power from being inadvertently paralleled with the shipboard power.
20/___
Match the questions with the answers.
| What is he going to do? | a | I think, I’ll visit the statue of Liberty | |
| Why have you refused to be on board the vessel? | b | The electrician is | |
| Where will you go in the USA? | c | The third engineer had | |
| Who is responsible for maintaining electrical equipment? | d | From 4 a.m. till 8 a.m | |
| How can I get to the seaport? | e | He is going to make a report about marine pollution | |
| When did he keep watch yesterday? | f | Go straight ahead and take the first turn to the right | |
| Which of them had a seasickness? | g | Because they haven’t proposed a good vessel |
1___, 2___, 3___, 4___, 5___, 6___, 7___ 7/___
Reading