Match the questions with the answers. Match the words with their definitions. Igniter a a valve for use with liquid or gas

Variant 5

Vocabulary

Match the words with their definitions.

	igniter	a	a valve for use with liquid or gas, which is controlled by an electric current through a solenoid coil
	solenoid valve	b	this eye is not natural, but is artificial, fitted in a boiler combustion chamber for detection of flame putting out
	draft flap	c	a device for igniting a fuel mixture in an engine
	flame eye	d	repeated failures of machinery take place
	operating trips	e	a piece of something thin, such as cloth, paper, or metal, hinged or attached only on one side, that covers an opening or hangs down from something

1___, 2___, 3___, 4___, 5___ 10/___

Underline the appropriate words.

1) From the condenser the refrigerant liquid flows/flies/evaporatesthrough a controlling expansion valve designed to regulate it so that it is at the correct pressure for its re-entry into the evaporator.

2) In the compressor the refrigerant vapor is subjected to high/low/average pressure as it is compressed.

3) The super-heated vapor and below/above/under the pressure enters the condenser where the refrigerant condenses into its liquid state once again through the heat-exchange process.

4) When the rotor and rotor blades are driven round by external power they act somewhat like a number of ordinary desk fans arranged in parallel/series/both in series and in parallel.

5) The blades of axial compressors are generally designed to conform to one or other variation of the so-called vortex/complex/botox principle.

6) The basic construction of a reciprocating compressor is unlike/different/similar to that of internal combustion engine.

7) In ac tachogenerators the magnetic field can be obtained by using ohmmeter/voltmeter/electromagnet or permanent magnet.

8) Servomotors use servomechanism to achieve closed loop/open loop/manual control with a generic open loop motor.

9) Diodes are used for ac to dc conversion for a lost/given/found power rating.

10) The servomotor is a closed loop servomechanism that uses position feedback to control its motion and final/initial/middle position.

10/___

Fill in the gaps with the words.

comprise power electric system insulating resistors in series switchboard

1) The compound circuit is a type of circuit where the elements are connected both _______________ and in parallel.

2) A ship’s _____________ cables form an integral part of the electrical system on board the ship.

3) Electric cables_____________ of two basic materials namely insulating and conducting materials.

4) An indicator light is to be provided at the main or emergency_____________ to which shore power is connected to show energized status of the cable.

5) Hybrid system consisting of an advanced_____________ for conditioning the power generated from shaft generator so that the supply to the switchboard always remains constant at any engine speed.

6) Among electronic passive components are familiar two-terminal components such as_____________, capacitors, inductors and transformers.

12/___

Grammar

Choose the correct form of the verbs.

1) During the maneuvering operations there was/were/are emergency situation the day before yesterday.

2) The electrician will repair/repairs/repair the crane tomorrow.

3) He has/have/istaken up his mind to be a seafarer.

4) Two seafarers will be/ are/were punished by the local authorities two weeks ago.

5) If you smuggle things be ready to pay/paid/pays a fine.

6) The master warned about the piracy attack and ask/asked/sendfor military forces.

7) The weather is fine and we can/could/must sunbathe.

7/___

Choose the proper word.

1) Direct current is an electric current that flows in/for/through one direction only and doesn’t change its direction and magnitude

2) Electrode is a conductor during/across/through which electricity enters or leaves an object, substance, or region.

3) Passive electronic components cannot supply energy ourselves/themselves/yourselves.

4) The range of engine speeds within which the shaft generator can be operated/operating/to operate is generally 90% to 100% of the normal value.

5) All shaft alternator systems have one thing in common: the active power required for the mains is generated to/for/by the main engine.

6) The operator must adjust the incoming generator speed (and voltage if necessary) obtaining/to obtain/obtained synchronized conditions.

7) After the silver element has fused the indicator wire will heat up sufficiently/sufficient/the most sufficient to ignite the indicator powder and the enclosed fuse will be blown.

8) The modern application of the shaft generator includes its function/functioning/to function as a motor by taking power from the electrical plant of the ship to drive the propeller at reduced speed.

9) The fresh water generator works on the principle that the boiling/boiler/to boil point of water can be brought down to reduce the pressure of the atmosphere surrounding it.

10) Boilers on ships are used for supplying steam during/through/for various processes such as pumping, heating, cooling, cleaning and hot-water for the accommodation.

20/___

Match the questions with the answers.

	What should you do when forced draft fan is not running?	a	The electrician must
	Why do we have power failure problems?	b	Igniter cable is damaged
	Where do we have damage?	c	The first one
	Who must replace the sensors?	d	I should start the draft fan manually
	How will he eliminate fluctuation of outgoing voltage?	e	About 3 hours ago
	When did you reset reference voltage?	f	He will set the brushes correctly
	Which of these boilers is clogged?	g	Because the container’s gauges and digital readouts are completely dead

1___, 2___, 3___, 4___, 5___, 6___, 7___ 7/___

Reading