22 3
Instruct your electrician as to requirements to the arrangement of the equipment. Use ex. 21.
23 5
Fulfil or explain the following:
1. Name 10 parts and assemblies of the spare parts set for the electrical equipment which, can be used for the repairs to be carried out on the ship.
2. Define the term “in-situ method”.
3. Explain the construction and use of a wattmeter.
24 8
Record your answers on a tape.
1. How would you go about ordering a new electric drive equipment?
2. How do you select the power drive equipment?
3. What information in your opinion must the order for delivery of a magnetic controller contain?
4. How do you know when the motor is damaged?
25 7
Work in pairs. Dwell on ordering directions with your fellow-student. Use ex. 23, 24. Then record your talk.
26 13
Practice pronunciation. Open your books and repeat after the speaker in pauses 5 paragraphs of the recorded text “Ordering Directions”. Then close your books and do the same with paragraphs 6—8.
The fourth class period-27
Translate the sentences. Mind Subjunctive Mood.
1. He demanded that they should do it. 2. The engineer ordered that the work (should) be finished. 3. He proposed that a procedure be developed for the purification of a series of standards. 4. It is necessary that they should do it. 5. It' is advisable that the work be finished. 6. The limiting current would probably have a very large temperature coefficient.
7. Temperature and solvent would be expected to play a role in this reaction. 8. In all the examples cited, the relief of compressed energy might provide some driving force for rearrangement, since in every case a less constrained radical is generated.
* 28 3
Listen to paragraphs 1—4 of the text, read sentence by sentence and translate them in pauses.
29 6
Respond to the questions. Compare your results with the text.
1. How would you go about ordering a magnetic controller?
2. What information in your opinion must the order for delivery of a cam controller contain?
3. What is the reason for the most frequent cause of breakdowns in electrical equipment aboard ship?
4. How would you detect that the troubles are due to steam and water adjacent pipework?
30 2
Fill in the blanks with suitable words.
1. After ... the power rating of ... motors from the formula given in this catalogue ... a power drive equipment with the nearest . . . and then make sure that the control ... of the drive indicated on the mechanical characteristics . .. the operating ... of the electrical equipment ...