Card №10 Introduce yourself!

3. Match the words or phrases (1-6) with the definitions (A-F).
1.worm gear 2.mesh 4.worm 3. tooth 5. pinion 6. spur gear

1. 
   a regular protrusion cut into a gear
   
2. 
   the driving gear of a gearset
   
3. 
   a gear that meshes with a screw-like gear
   
4. 
   to come together and interlock
   
5. 
   a gear with teeth that project radially
   
6. 
   a type of gear with one continuous tooth
   

The head of the chair: X.Jurabekova

The Ministry of Higher and Secondary Specialized Education

of the Republic of Uzbekistan
Andijan Machine-building Institute the chair of the “Uzbek language and literature”
Card №5
1.Introduce yourself!
2. Read the text! Find new words and translate the text into Uzbek.
From: [e-mail]
Subject: Number Conventions
Hello Everyone,
Some employees are not using our number conventions. Please review these guidelines for ensuring consistency and accuracy.

• 
  Double-check your exponents. Someone recently recorded a quantity as cubed instead of squared. This caused serious errors in the results of the project.
  
• 
  Very large and small quantities are easy to misread in decimal form. Express them in scientific notation. Raising a figure to the nth power is more reliable.
  
• 
  Use appropriate significant figures. This prevents problems from rounding errors. Most of our formulas require precision to the thousandths. Rounding to tenths or hundredths instead produces inaccurate results. Use trailing zeros to indicate your number of significant figures.
  

Thanks for your cooperation.
Stanley Green
Pendleberg Engineering, Inc
3.Match the words (1-7) with the definitions (A-G).
1. joule 2.paskal 3.newton 4.base unit 5.derived unit

1. 
   A unit that measures energy
   
2. 
   A unit that is calculated using other units
   
3. 
   A unit that measures force
   

d. A unit that measures pressure
e . A unit that is used as a foundation for other units


The head of the chair: X.Jurabekova

The Ministry of Higher and Secondary Specialized Education

of the Republic of Uzbekistan
Andijan Machine-building Institute the chair of the “Uzbek language and literature”
Card №4
1.Introduce yourself!
2. Read the text! Find new words and translate into Uzbek.