Variant №1 Read and translate the text on specialty in written form

2. Read and retell the text.
THE GEOGRAPHICAL POSITION OF UZBEKISTAN

Uzbekistan is one of the four Republics in Central Asia. Uzbekistan is situated between the Amu- Darya and Syr- Darya, the greatest Asian rivers. It is the region of flatlands, mountains and deserts. The territory of the Republic covers 447, 4 thousand square kilometers and is larger than Great Britain or Italy. Uzbekistan borders on Kazakhstan, Kirghizia, Tajikistan and Turkmenia and in the south Uzbekistan borders on Afghanistan. The Republic consists of 12 regions and the Karakalpakstan.

Uzbekistan is the republic of sunshine. The climate is continental a great number of bright sunny days are good for cotton growing. Uzbekistan is one of the most important producers of cotton and silk. The climate of Uzbekistan is very hot in summer and very cold in winter. Uzbekistan is a multinational republic. Uzbekistan has great economic potential from its own resources.
3. Make up a story on the theme: ’’Seasons”.
Key words: divided, seasons, a leap year, degrees below zero, frost, the roads, covered, ground sparkling, moonlight, snow, rain, beautiful
Head of the department: Muhammadiyeva. O.
VARIANT № 15

1. 
   Read and translate the text on specialty in written form.
   

Carburetor,
The mixture consisting of fuel vapour and air burned in the cylinder is produced in the carburetor. It supplies a uniform fuel-air mixture in the ratio 1:15 to 1:16 for the entire engine speed range, i.e, for idling, changeover, partial load and fill load. The fundamental principles of a carburetor are as follows: during the suction stroke outside air is drawn by the flowing through the intake pipe of the carburetor.
When the intake pipe is narrowed at some place, the speed of the induction air will be increased at this place. If a little opening is arranged at the bottle-neck and connected with the fuel supply, fuel will be dragged along from this opening while the air is passing and mixed with the air as finely atomized droplets. Thus quantity of fuel-air mixture fed to the engine and consequently the quantity of fuel is generally metered by a throttle valve incorporated into the induction pipe of the carburetor between carburetor and engine.
By means of selection of the jet bores, the mixing ratio of fuel and air can be maintained sufficiently constant within wide ranges of engine speed and load. A «choke valve» is inserted info air intake passage in front of the main jet. During starting the cold engine, it is closed: as a result, nearly the entire intake pressure is acting on the fuel nozzle and excess in fuel is achieved.
In case of unskilled operation and especially if the choke valve is kept open too long after the the engine has started, the engine may be flooded with fuel to such an extent that it does not ignite. This leads to serious damages of the engine.