Module Revision
Variant 1
Group ____________________
Name ________________________________
Points 100 _/___________
Vocabulary
Match the words with definitions
| main source of electrical power | A | a part of an atom with no charge (electrically neutral). | |
| emergency source of electrical power | B | an apparatus for reducing or increasing the voltage of an alternating current | |
| conductor | C | relatively small electromotive force or potential difference expressed in volts | |
| electricity | D | a material or device that conducts or transmits heat or electricity, especially when regarded in terms of its capacity to do this | |
| high voltage | E | a source intended to supply electrical power to the main switchboard for distribution to all services necessary for maintaining the slip in normal operational and habitable conditions. | |
| low voltage | F | an electrical potential large enough to cause injury or damage | |
| transformer | G | energy made up of moving electrons | |
| nucleus | H | a source of electrical power, intended to supply the emergency switchboard in the event of failure of the supply from the main source of electrical power. | |
| neutron | I | the force inside the atom that is responsible for electrical phenomena, existing in a positive or negative form. | |
| charge | J | the positively charged center of an atom. |
1 ____; 2 ____; 3 ____; 4 ____; 5 ____; 6 ____; 7 ____; 8____; 9____; 10____ 10/______
2 Complete the sentences with the correct words or phrases.
| 1. Electrical power is used ____ the majority of these auxiliary services. | ||
| a)to measure | b) to drive | c)to flow |
| 2.The main AC generators (sometimes called ______) produce the electrical power. | ||
| a) wires | b) batteries | c) alternators |
| 3. The power is supplied to the main ____ and then distributed to the various auxiliary services | ||
| a)generator | b)gearbox | c) switchboard |
| 4. An emergency generator maintains supplies in the event of a main power____. | ||
| a) failure | b)circuit | c)run |
| 5. The generators may be driven by the main propulsion engine as a ______ generator. | ||
| a)AC | b)shaft | c)DC |
| 6.Electrical power on board ship is commonly generated at ________. | ||
| a) 220 V, 50 Hz | b) 320 V, 40 Hz | c) 440 V, 60 Hz |
| 7. Ships with a very large electrical power demand will require ____ that operate at a high voltage. | ||
| a) generators | b)batteries | c)propulsion engine |
| 8. ______ are used to reduce the 440 V system voltage to these lower voltage levels. | ||
| a)generators | b) transformers | c)switchboards |
8/______
3 Put the words in the correct column.
| pumps, transferring, generator, compressors, charging, fans, empowering, winches, windlasses, provision, general lighting, protecting, alternator, air conditioner, switchboard, generation, current, voltage, stream, accumulator, conductor, sensor, battery | ||
| Processes | Electrically Driven Machinery | Electricity Managing Equipment |
12/______
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Grammar
Correct one mistake in every sentence.
1. Electricity is creating when a state of unbalanced charges exists.
_____________
2. Electrical charges accumulated at one point is calling static electricity.
_____________
3. Different materials have different level of resistances.
_____________
4. Insulator blocking the flow of an electric charge.
_____________
5. Which particles makes up the nucleus?
_____________
5/______
Choose the correct item.
1. If Chief Engineer competent, main engine will be maintained properly.
| a) will be | b) was |
| c) is | d) were |
2. If we silver as a conductor, the wire will be very expensive.
| a) use | b) to be used |
| c) to use | d) used |
3. If we Voltmeter in parallel, we get correct readings.
| a) connect; dont get | b) will connect; dont get |
| c) will connect; will not get | d) connect; will not get |
4. If we... the voltage, the amperage as well.
| a) will increase; increase | b) will increase; will increase. |
| c) increase; will increase | d) increase, increase |
5. If EMF , no current in the wire.
| a) remove; will flow | b) removing; will flow |
| c) removed; will flow | d) is removed; will flow |
5/______
Arrange the words in meaningful sentences.
1. measure and multimeters voltage, current can resistance.
_____________________________________________________________
2. multimeter electrician either use measuring an may voltage voltmeter or.
__________________________________________________________________
3. performed continuity can check tester with a be continuity.
__________________________________________________________________
4. be a diode can one-way compared valve with a.
__________________________________________________________________
5. red must black probe positive for be for used and probe negative.
__________________________________________________________________
10/______
Reading
1 Read the text and mark the statements as True/ False/ Doesnt say.
AC Source Select Panel
The AC Source Select panel incorporates an interlocking double pole circuit breaker to select either the generator or shore power for connection to the electrical system. The shore-power select circuit breaker must be in the off position before connecting the shore power cord to the dockside power outlet. A reverse polarity indicator is provided shore power must not be switched on if a reverse polarity condition is present.
The AC Source select panel:
provides reverse polarity indication to guard against an incorrectly wired shore power system
ensures that only the generator or shore power source can be selected at any one time
switches both line and neutral to ensure that MEN integrity is maintained
provides separate circuit-overload protection
________ 1. The AC Source Select panel serves to connect the ships electrical system to different sources of power.
________ 2. When we have reverse polarity condition we may take in shore power.
________ 3. The AC Source Select panel helps to protect engineers from electrical shock.
________ 4.The AC Source Select panel helps to choose generator and shore power as a simultaneous source of power..
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________ 5. Incorrectly wired power system is detected by reverse polarity indication function.
10/______
Writing
1 Describe the process of measuring voltage of a battery (60-80 words); make sure you use all the words bellow: plug in, red/black jack, selection knob, port, range, probe, reading.
___________________________________________________________________________________________________________________________________
___________________________________
40/______
Module Revision
Variant 2
Group ____________________
Name ________________________________
Points 100 _/___________
Vocabulary
