Предмет: Физика, автор: KateLokid

тепловой двигатель в котором пар нагретый до высокой температуры вращает вал двигателя без помощи шатуна,поршня и коленчатого вала,называется
1)Дизельным двигателем
2)Паровой машиной
3)Паровой турбиной
4)двигателем внутреннего сгорания

Ответы

Автор ответа: Mamedov12
6

Из определения :

Паровая турбина - это тепловой двигатель в котором пар , нагретый до высокой температуры , вращает вал двигателя без помощи шатуна, поршня и коленчатого вала.

В паровой турбине есть диск, который насажен на вал двигателя, лопасти, и сопла из которых поступает пар. Пар оказывает давление на лопасти, которое приводит их в движение.

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ПОМОГИТЕ ПОЖАЛУЙСТА С ЗАДАНИЕМ

2 Read the texts and decide which answer-А, Б, С or D - best fits each space (1-15). There is an example at the beginning (0).

FRIDGE RAIDERS

People who frequently wake up in the 0) С of the night and are unable to 1) a trip to the fridge may in fact be suffering from a 2) medical complaint, say scientists. They have 3) biochemical differences in people who cannot 4) the urge to eat during the hours 5) most of us are asleep. Night Eating Syndrome, as it is called, is not a new phenomenon. In the 1950s, doctors found that 6) one and two percent of people admitted to regularly raiding their fridges at night. The new findings 7) existing evidence that the syndrome is a 8) eating disorder.
Symptoms include 9) no appetite for breakfast and eating more than 10) of the day's total food intake after 7pm. Sufferers are prone to stress and have a 11) to crave foods which are 12) in carbohydrates, such as cakes and crisps, 13) though these are the 14) nourishing. As a result, many of them are overweight.
According to doctors, there is a difference in the way that the bodies of people with Night Eating Syndrome 15) to certain hormones connected with controlling stress.

0 A centre В midpoint С middle D height height
1 A avoid В stop С resist D sincere delay
2 A legal В true С genuine D sincere
3 A invented В discovered С produced D roughly explored
4 A control В guide С command D rule
5 A when В which С while D where
6 A about В between С around D roughly
7 A help В assist С aid D support
8 A strong В sensible С serious D height strict
9 A keeping В holding С having D sincere owning
10 A some В most С part D half
11 A trend В tendency С fashion D roughly habit
12 A plenty В much С lot D high
13 A since В yet С despite D even
14 A few В least С less D littie
15 A defend В reply С return D react