2. What are in your opinion advantages of the electronic alarm system?
3. How can you tell when there is the occurrence of abnormal conditions?
4. What is the design of the standard modules?
27 6
Dwell on the alarm measuring systems with your fellow-student.
28 1
Fill in the blanks with suitable words.
1. The signals from analog and digital . . . are processed in the system.
2. If necessary, the system . . . can easily be modified by the customer.
3. The electronic and alarm measuring systems are designed for centralized ... of processes on board ship.
29 3
Using the notes below speak on the advantages оГ the electronic alarm system.
1. all, transducer, signal, to process, individual, one, circuit board, measure, alarm, channel. 2. one, channel, fail, rest, system, remain, uneffected. 3. necessary, system, layout, easy, modify, customer, move, transducer, connection, correspond, circuit board, transparent, legend plate, to need, take, program, consideration. 4. channel, equip, separate, lamp, alarm, indication, mimic, analog, instrument, presentation, to measure, value.
30 4
Complete the following sentences according to the text.
1. The electronic and alarm measuring systems arc designed to meet...
2. The signals from analog and digital transducers arc processed in the
system and allow for. . . 3. The design of the aiarm systems comprises a limited number of standard modules, and offers. . . 4. All transducer
signals are individually processed, i. e. . . .
31 5
Give the exact translation to the following definitions and explanations.
Component of automatic systems is the simplest and functionally selfdependent structural item used in automatic systems (e.g. relay, resistor, logic element, sensor, final control element).
Environmental strain is environmental factor which is assumed to have deteriorating influence upon the equipment.
Indicating system is the system intended to indicate values of given physical quantities and significant states.
Monitoring system is the general term for alarm, safety and indicating systems.
Reliability is probability of satisfactory functioning in a given period and under predetermined conditions,
Dwell on the above definitions of automatic systems with your fellow-student.
10
33
Read the text. Write a summary in English. Dwell on the nuclear ships with your fellow-students.
Safe Operation of Nuclear Ships
Ice-breakers and ice-classed transport ships are very important in the Soviet merchant fleet due to the geographical position of the USSR. Over the past 20 years, in the Western Arctic sector alone, the volume of shipping has increased eleven-fold, and the navigation season from 90 to 330 days. This results in the first place from a 2.7-fold increase in the ice-breaker fleet power and a 3.7-fold increase of its utilization factor. Why nuclear?
Many years of experience show that for ice-breakers decisive factors are power and endurance. To achieve both, nuclear power plants were indicated.
The Soviet nuclear ice-breakers have, in fact, an unlimited range and endurance of 500 to 700 days. The endurance of conventional icebreakers does not exceed 50 days.
The operational life of Soviet atomic ice-breakers and thus nuclear reactors falls in two stages: the early “Lenin”, built with an experimental nuclear steam-generating plant of the first generation; and the others of the later “Lenin", “Arktika” and “Sibir" with nuclear plants of the second generation.
34 40
Home exercise. Read the text, point out in English in written form what main themes are dwelt upon. Be prepared to dwell on the themes with your fellow-student.
Modules of Alarm Measuring- System
Alarm and measuring modules. They are designed with space for several analog or on/off channel boards. In front of each channel is a transparent legend plate on which the name of the channel is engraved, and a push-button for visual alarm acknowledgement and manual measuring.
The channel boards, which can be located in these modules according to the customer's requirements, are:
