Read these word combinations and remember their translation.

 

The manner of the warming through, loading, stopping, cooling down, close tolerances in the structure, the driving medium, problems associated with thermal expansion, proper drainage, careful handling of load changes, any of these functions need to be carried out manually, the bulkhead, stop, and manoeuvring valves, prior to the estimated time of departure, the Officer of the watch, on no account, the manufacturers recommendations, disengagement of the turning gear, no reliance, to turn the engine on live steam, subsequent specific instructions, the original commissioning letter parameters to be countermanded, to give one hour’s notice, regardless of the time of day or type of vessel, unmanned engine room, conventional watchkeeping, to be as gradual as possible, avoiding sudden variations of loading, " Finished with Engines", the above mentioned, approximately 2 propeller revolutions every five minutes, using astern steam, checking ahead rotation only.

 

Match each item in column A with an appropriate item from column B

Example: 1-I.

 

1. close	A. speed
2. driving	B. engine room
3. proper	C. watchkeeping
4. carefull	D. revolutions
5. control	E. gear
6. same	F. indicating devices
7. remote	G. handling
8. estimated	H. drainage
9. lubricating	I. tolerances
10. gland	J. time of departure
11. turning	K. manner
12. unmanned	L. oil
13. full	M. medium
14. propeller	N. steam
15. conventional	O. system

 

 

1	2	3	4	5	6	7	8	9	10	11	12	13	14	15
I

Complete the following. Choose the right word from the list.

Arriving at a port, the astern turbines, the clearance indicators, cooling, imbalance and catastrophic failure, manoeuvring operations, once every watch, the thrust bearing, vibration, warming-through.

1. The steam turbine requires a considerable period for … prior to any manoeuvring taking place.

2. The high-speed operation of the turbine and its simply supported rotor also require great care during ….

3. Any imbalance of the rotor can lead to ….

4. If water gets into the steam and is blasted onto the blades (moisture carry over), rapid impingement and erosion of the blades can occur leading to ….

5. Water entering the blades will result in the destruction of … for the turbine shaft.

6. Turbine rotor should not be left stationary for more than 3 minutes, this would create distortion of the rotor due to the uneven …

7. Astern operation involves admitting steam to ….

8. Prior to … the bridge should provide one to two hours' notice to enable the turbines to be brought down to manoeuvring revolutions.

9. Control the lubricating oil system checking all bearing temperatures and pressures at least … and record data.

10. Check the location of the turbine rotors by means of … to determine wear in the trust bearings.

Match the endings of the sentences.

1. To minimize the risk of vibration it is essential that …

2. The makers’ recommendation with regard to minimum continuous operating power and condenser vacuum should be strictly followed in order …

3. Once warmed through, the turbine rotor must not remain stationary more than a few minutes at a time because …

4. The stopping of the turbine or its astern operation will occur about 10 to 15 minutes before …a similar state will occur for the ship.

5. Before starting the turbine, it may be necessary to heat the oil in the tanks sufficiently …

6. When finished with the engine shut off the main steam stop valve and shut down the air ejector, …

7. To keep the turbine interiors dry, it is important that …

A. … to avoid condensation of steam at the last stages of the low pressure steam turbine.

B. … allowing the vacuum to break through the air ejector vents.

C. …a similar state will occur for the ship.

D. … the rotor could sag or distort.

E. … the air pumps be run for about ½ hour every second day to draw fresh air through the turbine.

F. … to allow it to flow freely.

G. … the turbine be very well balanced.

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