Tasdiqlayman“Chet tiilar” kafedras imudiri M. B. Ganikhanova

manufacturing fluctuations. Microscopic properties pertain to atoms, molecules,

and their interactions. These aspects of materials are studied for their direct

applicability to industrial problems and also so that possible properties in the

development of new materials can be estimated.

Toshkent davlat texnika universiteti “Chet tillar” kafedrasi
Tasdiqlayman“Chet tiilar” kafedras imudiri M.B.Ganikhanova. ___________ -сонли баеннома/ / /20 й.	_____ guruh talabasi______________ning ingliz tili fani bo’yicha yakuniy nazorat ishi Sana___________

VARIANT III
Translate the sentences
1. A new system enables researchers to carry out complicated tests.

2. The Internet, a global web of computer connections, uses various networks to

deliver texts, sound and images.

3. Our lecturer’s book on strength of materials is well-known and popular.

Make the questions for each sentence
1. Mass production refers to manufacturing process with an assembly line.

2. Most castings (отливки) serve as details or component parts of complex

machines and products.

3. Internal combustion engines (двигатели внутреннего сгорания) use

petroleum as fuel.
Read and translate the text
Mechanical Properties of Materials

Designers and engineers are usually more interested in the behavior of

materials under load or when in a magnetic field than in why they behave as they do. Yet the better one understands the nature of materials and the reasons for their

physical and mechanical properties the more quickly and wisely will he/she be able to choose the proper material for a given design. Generally, a material property is the measured magnitude of its response to a standard test performed according to a standard procedure in a given environment. In engineering materials the loads are mechanical or physical in nature and the properties are recorded in handbooks or, for new materials, are made available by the supplier. Frequently such information is tabulated for room-temperature conditions only, so when the actual service conditions are at subfreezing or elevated temperatures, more information is needed.

All materials have properties that designers must use to their best advantage.

The following terms describe these properties:

Toshkent davlat texnika universiteti “Chet tillar” kafedrasi
Tasdiqlayman“Chet tiilar” kafedras imudiri M.B.Ganikhanova. ___________ -сонли баеннома/ / /20 й.	_____ guruh talabasi______________ning ingliz tili fani bo’yicha yakuniy nazorat ishi Sana___________

VARIANT IV

Translate the sentences

1. This kind of treatment makes the metals heat-resistant.

2. Scientific and engineering progress opens up wide prospects before man.

3. Newton’s famous work “Principia” resulted from 40 years of experimental work.

Make the questions for each sentence

1. Most automobile engines have six or eight cylinders.

2. Research work develops scientific thinking.

3. Tool life depends on a number of factors.

Read and translate the text
Application of Concepts from Quantum Mechanics
Quantum mechanics, once restricted to the academic halls, has now become a bread-and-butter topic. It generally deals with particles of atomic or subatomic sizes. But from the understanding of the behavior of these