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प्रश्न
How does an electric fan managed to throw so much air when it is switched on?
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उत्तर
An electrical fan comprises of three blades and a whirling motor. The moment it is switched on. the motor starts and begins to rotate, forcing the blades to move in circular movement. this generates a lot of pressure, which forces the air downwards in all directions.
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संबंधित प्रश्न
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The world's most famous female aviator, Amelia Earhart, disappeared in 1937, as she attempted to become the first woman to fly around the world with her navigator, Fred Noonan. She was last heard when she was around 100 miles from the tiny Pacific Howland Island on July 2, 1937.
Read the story of her 'Final Flight'.
On June 1, 1937 Amelia and her navigator Fred Noonan departed from Miami, Florida; bound for California. Their first destination was San Juan, Puerto Rico; from there, skirting the northeast edge of South America; and then on to Africa and the Red Sea.
The flight to Karachi was another first. No one had previously flown non-stop from the Red Sea to India before. From Karachi, the Electra flew to Calcutta on June 17 from there on, to Rangoon, Bangkok, Singapore and Bandoeng.
The monsoon prevented departure from Bandoeng for several days. Repairs were made on some of the 'long distance' instruments which had given trouble previously. During this time, Amelia became ill, and suffered from dysentery that lasted several days.
It was June 27 before Amelia and Noonan were able to leave Bandoeng for Port Darwin, Australia. At Darwin, the direction finder was repaired, and the parachutes were packed and shipped home as they would be of no value over the Pacific .
Amelia reached Lae in New Guinea on June 29. At this point they had flown 22,000 miles and there were 7,000 more to go over the Pacific. Amelia cabled her last commissioned article to the Herald Tribune. Photos show her looking very tired and ill during her time at Lac.
The U.S. Coast Guard cutter, Itasca had been standing off Howland Island for some day to act as a radio contact for Amelia Radio communications in the area were very poor as Itasca was overwhelmed with commercial radio traffic that the flight had generated .
Amelie left Lae at preciaely 00:00 hours Greenwich Mean Time on July 2 . It is believed that the Electra was loaded with 1,000 gallons of fuel , allowing for 20-21 hours of flying .
At 07:20 hours GMT Amelia provided a position report placing the Electra on course as some 20 miles southwest of the Nukumanu Islands . The last weather report Amelia was known to have received was before take-off . The head wind speed had increased by 10-12 mph, but it is not known if she ever received the report.
At 08:00 GMT Amelia made her last radio contact with Lae . she reported being on course for Howland Island at 12,000 feet . There is no real evidence as to the precise track of the aircraft after Nukumanu . No one saw or heard the plane fly over .
Several short transmissions were received by the Itasca with varying signal strengths but they were unable to get a fix on her location because they were too brief. At 19:30 GMT the following transmission was received from the Electra at maximum strength.
"KHAQQ calling Itasca. We must be on you but cannot see you ... gas is running low ... "
At 20: 14 GMT, the Itasca received the last voice transmission from Amelia giving positioning data. The Itasca continued to transmit on all frequencies until 21:30 hours GMT. They determined that Amelia must have died at sea and began to implement search procedures.
It has been determined that the plane went down some 35-100 miles off the coast of Howland Island. A life raft was stowed on board but no trace was ever found of the raft. Some experts felt that the empty fuel tanks could keep the plane afloat for a period of time.
President Roosevelt authorized a search party of 9 naval ships and 66 aircrafts at an estimated cost of over $4 million. On July 18, the search was abandoned by ships in the Howland area. George continued to seek help in the search, but by October he too abandoned all hope of finding them alive.
Amelia had been sending letters to George at stopovers all along her route quite regularly. These were published in the book 'Last Flight'. The book has a note from her to George ....
"Please know I am quite aware of the hazards ... I want to do it because I want to do it. Women must try to do things as men have tried. If they fail, their failure must be, but a challenge to others. "
Amelia created a number of aviation records :
o The first woman to fly across the Atlantic in 1928
o The second person to fly solo across the Atlantic in 1932
o The first person to fly solo from Hawaii to California in 1935 Guided by her publicist and husband, George Putnam, she made headlines in an era when aviation had gripped the public's imagination.
Read the following conversation:
Malavika and Deepak are looking through some photographs of Malavika’s family.
| Malavika: | Now ... this is my brother Shantanu. Shantanu is in Class VIII. Shantanu is brilliant at playing tennis. Shantanu is also good at singing. Shantanu sings a lot. |
| Deepak: | Shantanu sounds interesting. I’d like to meet Shantanu. I’m looking for someone to play tennis with. |
| Malavika: | Well ... why don’t you come around tonight and meet Shantanu? My parents will be out. My parents always go out on Tuesdays. |
Improve the above conversation by using suitable pronouns where required.
Six humans trapped by happenstance
In black and bitter cold.
Each one possessed a stick of wood,
Or so the story's told.
Their dying fire in need of logs;
The first man held his back.
For on the faces around the fire,
He noticed one was black.
Read the lines given above and answer the question that follow:
What is suggested by the use of the word trapped?
Some are Purple and gold flecked grey
For she who has journeyed through life midway,
Whose hands have cherished , whose love has blest,
And cradled fair sons on her faithful breast,
And serves her household in fruitful pride,
And worship the gods at her husband's side.
Read the lines given above and answer the question that follow:
What in the passage will repel a modern woman?
“There were three animals altogether,” he explained. “There were two goats and a cat and then there were four pairs of pigeons.”
“And you had to leave them?” I asked.
“Yes. Because of the artillery. The captain told me to go because of the artillery.” “And you have no family?” I asked, watching the far end of the bridge where a few last carts were hurrying down the slope of the bank.
“No,” he said, “only the animals I stated. The cat, of course, will be all right. A cat can look out for itself, but I cannot think what will become of the others.”
“What politics have you?” I asked.
“I am without politics,” he said. “I am seventy-six years old. I have come twelve kilometers now and I think now I can go no further.”
“This is not a good place to stop,” I said. “If you can make it, there are trucks up the road where it forks for Tortosa.”
“I will wait a while,” he said, “ and then I will go. Where do the trucks go?” “Towards Barcelona,” I told him.
“I know no one in that direction,” he said, “but thank you very much.
Read the extract given below and answer the question that follow.
Why did the old man have to leave his animals?
Read the following passage carefully and answer the questions that follow:
Granny knew I'd been in the train for two nights, and she had a huge breakfast ready for me. Later she told me there'd been a letter from Uncle Ken.
'He says he's the manager in Fitpo's hotel in Simla,' she said. 'The salary is very good. It's a steady job and I hope he keeps it.' Three days later Uncle Ken was on the veranda steps with his bedding roll and battered suitcase. 'Have you given up the hotel job?' asked Granny. 'No,' said Uncle Ken. 'They have closed down.' I hope it wasn't because of you.' 'No, Aunt Ellen_ The bigger hotels in the hill stations are closing down. 'Well, never mind. Come along and have your lunch. Over lunch; Uncle Ken talked very seriously about ways and means of earning a living. There is only one taxi in the whole of Debra, he mused. 'Surely there is business for another?' `I'm sure there is,' said Granny. 'But where does it get you? In the first place, you don't have a taxi. And in the second place, you can't drive.' I can soon learn. There's a driving school in town. And I can use Uncle's old car.' 'I don't think it will run now,' said Granny. 'Of course, it will. It just needs some oiling and greasing and a spot of paint.' 'All right, learn to drive.' So, Uncle Ken joined the driving school.After a month Uncle Ken announced that he could drive and that he was taking the car out for a trial run. 'You haven't got your license yet,' said Granny. 'Oh, I won't take it far,' said Uncle Ken. 'Just down the road and back again.' He spent all morning cleaning up the car. Granny gave him money for a can of petrol. After tea, Uncle Ken said, 'Come along, Ruskin, hop in and I will give you a ride. Bring Mohan along too.' Mohan and I needed no urging. We got into the car beside Uncle Ken. 'Now don't go too fast, Ken,' said Granny anxiously. 'You are not used to the car as yet.' Uncle Ken nodded and smiled and gave two sharp toots on the horn. He was feeling pleased with himself. Driving through the gate, he nearly ran over a cat. Miss Kellner, coming out for her evening rickshaw ride, saw Uncle Ken at the wheel of the car and ran indoors again. [40] Uncle Ken drove straight and fast, tootling the horn without a break. At the end of the road there was a roundabout. 'We’ll turn here,' said Uncle Ken, 'and then drive back again.' He turned tt;e steering wheel, we began going round the roundabout, but the steering wheel wouldn't turn all the way, not as much as Uncle Ken would have liked it to... So, instead he went on - and straight through the Maharaja of Jetpur’s garden wall. It was a single-brick wall, and the car knocked it down and emerged on the other, side without any damage to the car or any of its occupants. Uncle Ken brought it to a halt in the middle of the Maharaja's lawn. Running across the grass came the Maharaja himself. When he saw that it was Uncle Ken at the wheel, the Maharaja beamed with pleasure. 'Delighted to see you, old chap!' he exclaimed. 'Jolly decent of you to drop in again. How about a game of tennis?'
(a) Give the meaning of the following words as used in the passage:
One word answers or short phrases will be accepted.
(i) battered
(ii) bused
(iii) emerged
(b) Answer the following questions briefly in your own words.
(i) Why did Granny hope Uncle Ken would keep his job at Fitgo's hotel?
(ii) When Uncle Ken arrived with his luggage, Granny remarked that she hoped the hotel had not closed down because of him. What does this remark tell you about Uncle Ken?
(iii) Why did Uncle Ken think that driving a taxi in Dehra would be profitable?
(iv) Which sentence tells you that the narrator and his friend were waiting to be invited for a drive in a car?
(v) Why did Miss Kellner run indoors when she saw Uncle Ken at the wheel of the car?
(vi) What was Uncle Ken's intention at the roundabout?
(c)
(I) In not more than 60 words, describe what happened after the car went through the wall.
(ii) Give a title to your summary in 3(c)(i). Give a reason to justify choice of the title.
Who enters soon after? What does he say about the young Venetian who has just arrived? What gifts has the Venetian brought with him?
According to Charlie, what lives the longest.
Explain elaborately India’s dominance in the world cricket today.
What was customary for the mongoose?
Define a dream in your own words.
Who really helped Vijay Singh in defeating the ghost? How?
The cat was very happy to be on the ground. Pick out the phrase used to express this idea.
Discuss plan A, B and C and the reasons for their respective failures.
Read the lines in which the following phrases occur. Then discuss with your partner the meaning of each phrase in its context.
Velvet grass
Answer the following question.
How do mongooses kill snakes?
The word ‘tip’ has only three letters but many meanings.
Match the word with its meanings below.
- finger tips – be about to say something
- the tip of your nose – make the boat overturn
- tip the water out of the bucket – the ends of one’s fingers
- have something on the tip of your tongue – give a rupee to him, to thank him
- tip the boat over-empty a bucket by tilting it
- tip him a rupee-the pointed end of your nose
- the tip of the bat – if you take this advice
- the police were tipped off – the bat lightly touched the ball
- if you take my tip – the end of the bat
- the bat tipped the ball – the police were told or warned
Choose the option that lists the sequence of events from Alphonse Daudet’s short story ‘The Last Lesson’ in the correct order.
- But, when he arrived at school, Franz was dismayed to find his classmates already seated quietly and solemnly in their places ... and shocked when M. Hamel simply urged him to take his place.
- Franz hurried to school that morning he was very late and dreaded being scolded by M. Hamel, the teacher.
- After he had settled at his desk, he noticed something really odd: the back benches of the classroom were occupied by adults from the village!
- He hoped to slip into the classroom unnoticed, under cover of the bustle and noise of a typical school day morning.
