Rolling is the most common metalworking process.



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Rolling is the most common metalworking process.



а) Прокатка это один из самых обычных процессов обработки металла.

б) Самое обычное изделия проката – это лист.

+в) Прокатка это самый обычный процесс обработки металла.

г) Прокатка – это процесс обработки металла.

451. Under these conditions … no limit to the compressive plastic strain.

+а) there is

б) there isn’t

в) there aren’t

г) there are

452. The materials return … original size and form when the external force disappears.

а) our

б) his

+в) their

г) her

453. Найдите эквивалент модального глагола:The materials can have permanent deformation or they may fracture. The results of external forces are creep and fatigue.

а) must

б) are allowed to

в) may

+г) are able to

454. The results of … are creep and fatigue.

+а) external forces

б) internal forces

в) strong force

г) thick forces

455. … is a pressure causing a decrease in volume.

+а) compression

б) fatigue

в) creep

г) tension

456. When a material is … to a bending or torsion force, both tensile and compressive forces are simultaneously at work.

а) subject

+б) subjected

в) subjects

г) subjecting

457. Tension is a … force; for example, the force in a cable holding a weight.

а) pull

б) pulled

в) pulls

+г) pulling

458. Under larger tensions, the material doesn’t return completely to its… .

а) permanent deformation.

б) elastic limit

в) elastic deformation.

+г) original condition

459. Fatigue is … .

а) a slow, permanent deformation that results from a steady force.

+б) the growth of cracks under stress

в) a pulling force

г) a pressure causing a decrease in volume

460. Выберите правильный эквивалент подлежащего, выраженный местоимением: Fatigue occurs when a mechanical parts is subjected to a repeated stress.

а) He

б) She

+в) It

г) You

461. Creep is a slow, permanent deformation … results from a stead force acting on a material.

а) what

б) who

в) whom

+г) that

462. … at high temperatures usually suffer from this deformation.

а) Material

б) Metal

в) Iron

+г) Materials

463. Failure of the material can occur even after a short time.

+а) может

б) должно

в) хочет

г) нравится

464. Creep is a slow, permanent deformation that results from a stead force acting on a material. Materials at high temperatures usually … from this deformation.

а) suffered

+б) suffer

в) suffers

г) are suffering

465. In many cases the slow deformation … because deformation eliminates the force causing the creep.

а) are stopping

б) stop

+в) stops

г) were stopping

466. … is measured in kilograms per cubic meter.

а) strength

б) fatigue

в) stiffness

+г) density

467. Density is measured in kilograms … cubic meter. The density of water is … but most materials have a higher density and sink in water.

а) under

б) in

в) on

+г) per

468. The density of water is 1000 kg/ per cubic meter but most materials have a … density and sink in water.

а) high

+б) higher

в) the highest

г) more highest

469. Найдите эквивалент модального глагола: Density is important in any application where the material must not be heavy.

а) can

б) may

+в) has to

г) is able to

470. Stiffness is a measure of resistance to deformation such as … .

а) steel and iron

б) toughness or ductility

в) density and strength

+г) stretching or bending

471. Ductility is the ability of a material …deform without breaking.

а) how

+б) to

в) what

г) of

472. Glass can be … along a chosen line by first scratching it with a diamond.

а) break

б) broke

+в) broken

г) breaks

473. … is the resistance to a gradual permanent change of shape, and it becomes especially important at higher temperatures.

а) metal fatigue

б) metal ductility

в) permanent resistance

+г) creep resistance

474. Creep resistance is the resistance to a gradual permanent change of shape, and it … especially important at higher temperatures.

а) are becoming

б) have become

в) becoming

+г) becomes

475. Under larger tensions, the material doesn’t return completely to its original condition, and under greater forces the material….

+а) ruptures

б) rupture

в) ruptured

г) rupturing

476. Tubes or other … can also be extruded.

а) initial parts

б) remaining parts

в) tool’s parts

+ г) hollow parts

477. A successful research has been … in materials for machine parts.

+а) made

б) makes

в) is making

г) make

478. The toughest steels are different … the ones with highest tensile strength.

а) with

+б) from

в) between

г) out

479. Metals are important in industry because they … easily … into useful shapes.

а) can deformed

б) is deformed

+в) can be deformed

г) should be deformed

480. Using the laboratory techniques and knowledge of physics, chemistry and metallurgy, scientists are finding new ways of using metals.

а) Использование лабораторных методов и знаний

б) Использование методов и знаний в лаборатории

в) Мы используем различные методы и знания в лаборатории

+г) Используя лабораторные методы и знания

481. A lot of metalworking … have been developed for certain applications.

а) process

б) produce

в) production

+г) processes

482. During the rolling metal is subjected to… amount of strain.

+а) large

б) larger

в) the largest

г) not so large

483. Metals … usually rolled, extruded or forged above their recrystallization temperature.

а) am not

б) isn’t

в) am

+г) are

484.The process when metals are rolled, extruded, drawn, or forged above their recrystallization temperature is called … .

а) impact extrusion

+б) hot working

в) billet

г) thick –walled tubes

485. … these conditions there is no limit to the compressive plastic strain.

а) In

б) For

+в) Under

г) Behind

486. Cold working hardens metal and makes the part stronger. However, there is a limit to the strain before a cold part … .

+а) cracks

б) cracking

в) will crack

г) crack

What is rolling?

а) Rolling is the least common metalworking process.

+б) Rolling is the most common metalworking process.

в) Rolling is less common metalworking process.

г) Rolling is the best common metalworking process.

488. If the rolling is finished cold, the surface will be smoother and the product … .

а) less strong

б) the strongest

в) strong

+г) stronger

489. Rolling can be done … hot … cold.

а) neither…no…

б) not so as…

в) from … till…

+г) either … or…

490. … is pushing the billet to flow throw the orifice of a die.

+а) extrusion

б) rolling

в) drawing

г) forging

491. The most common … product is sheet.

а) rolling

+б) rolled

в) roll

г) rolls

492. Products … either a simple or a complex cross section.

а) may has

б) may be have

в) may

+г) may have

493.The students of the Technical University were carrying out an experiment ... a millimeter in the lab last week.

а) for

б)at

в)from

+г) with

494. The crocodile... are measured to make a good connection between the meter and the resistor.

а) circuit

б)current

+в) clips

г) cores

495.There will appear six-wheel-drive tractors controlled by computers.

а)управляющие

+б)управляемые

в)управлялись

г)управляли

496. Everybody was watching the indications ... the volts scale.

+a)on

б)in

в)for

г)from

497. The amount of electricity which is flowing (it is called the current) is measured in units called … .

a)volts

б)ohm

в)watt

+г)amps

498. The students of the Technical University were carrying out an experiment ... a millimeter in the lab last week.

а)for

б)at

в)from

+г)with

499. The uses of electricity ... with lightning only.

а)does not end

б)are not end

+в)do not end

г)is not end

500. Electric power is the source of energy that....

а)today's automatic feeding system makes possible

+б)makes possible the today's automatic feeding system

в)possible makes the today's automatic feeding system

г)today's feeding system possible makes

501.The professor delivering a lecture on new technologies in electroengineering mentioned interesting facts.

а)читает лекцию

б)чтение лекции

+в)читавший лекцию

г)читал лекции

502. Выберите предложение с правильным порядком слов:

а)How a power plant does generate electricity?

б)How generate does a power plant electricity?

+в) How does a power plant generate the electricity?

г)How does electricity generate a power plant?



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