General Elementary English Test - 43

General English : General Elementary English Questions and Answers


1. People started to be ________ of her and thought that perhaps she had a secret source of information.


2. Could you please give me a ________ I'm afraid I can't handle it by myself.


3. Her name was Mary Smith and she had a ________ for telling people what was going to happen.


4. Come on, shake a ________ we're running late.


5. Alan: Well, I only asked there's no need to bite my ________ off!



6. I can't ________ those silly people who always go around with their mobile phones glued to their ears.


7. Don't you think it's about time you put your ________ down and told them what you really think?


8. Mike: Just a minute what's that note ________ ?


9. User: Sorry I didn't mean to be rude but I'm trying to ________ .


10. Mike: That doesn't prove anything. Actually I heard the sound of glass ________ in the night.


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Simple Science

Turbines

The Power behind the Engine:
The most efficient form of water motor is the turbine, a strong metal wheel shaped somewhat like a pin wheel, inclosed in a heavy metal case.

Water is conveyed from a reservoir or dam through a pipe (penstock) to the turbine case, in which is placed the heavy metal turbine wheel. The force of the water causes rotation of the turbine and of the shaft which is rigidly fastened to it. The water which flows into the turbine case causes rotation of the wheel, escapes from the case through openings, and flows into the tail water.

The power which a turbine can furnish depends upon the quantity of water and the height of the fall, and also upon the turbine wheel itself. One of the largest turbines known has a horse power of about 20,000; that is, it is equivalent, approximately, to 20,000 horses.

FIG. - A turbine at Niagara Falls.

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