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Hydrogen Cars IELTS Reading Answers
The Academic passage ‘Hydrogen Cars ’ is a reading passage that appeared in an IELTS Test. Read the passage below and answer questions 1 – 14. Beyond the questions, you will find the answers along with the location of the answers in the passage and the keywords that help you find out the answers.
Hydrogen Cars
Answers
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| Question number | Answer | Keywords | Location of keywords |
|---|---|---|---|
| 1 | vi | But some tricky questions need to be answered before mass- produced hydrogen cars start appearing on the streets. | Paragraph B;
Line 2 |
| 2 | xi | However, most car makers think that fuel cells powering an electric motor offer a better alternative. | Paragraph C;
Line 4 |
| 3 | viii | The hydrogen fuel reacts with oxygen from the air to produce water and electricity, the reverse of the familiar electrolysis process that releases oxygen and hydrogen from water. | Paragraph D;
Line 2 |
| 4 | i | Hydrogen has many advantages as a fuel for vehicles, but a big disadvantage is that it is difficult to store. | Paragraph E;
Line 1 |
| 5 | ix | Although there’s no risk that we’ll ever run out of hydrogen, on Earth it exists naturally only in chemical compounds, not as hydrogen gas. A relatively simple principal technology, steam reforming, can produce hydrogen gas for cars at central plants or filling stations. | Paragraph F;
Lines 1- 2 |
| 6 | iii | ‘Remember the Hindenburg’ – that’s a phrase often heard when hydrogen is discussed. | Paragraph G;
Line 1 |
| 7 | v | However, the idea that in the not too distant future most of us will be driving non-polluting cars fuelled by hydrogen from a clean, renewable source is no longer a flight of fantasy | Paragraph H;
Last line |
| 8 | Most abundant element | Although there’s no risk that we’ll ever run out of hydrogen
& But what if, instead of gas, your car ran on the most abundant element in our universe |
Paragraph F;
Line 1 & Paragraph A; Line 2 |
| 9 | Billions of dollars | Already car manufacturers around the world have invested billions of dollars in research and development.
|
Paragraph A;
Last line |
| 10 | On-board reformers | Alternatively, fuel tanks could be filled with petrol or methanol, with the cars using on-board reformers to generate hydrogen for their fuel cells. | Paragraph F;
Line 3 |
| 11 | The airship’s fabric | Recent research has indicated that the airship’s fabric, not hydrogen, was the culprit in the Hindenburg disaster | Paragraph G;
Line 5 |
| 12 | Power and acceleration | Their power and acceleration should match those of today’s conventionally- powered vehicles, | Paragraph H;
Line 2 |
| 13 | B | Elimination method:
Option A: they may have to be refuelled more often. So A is a problem Option C: Hydrogen is highly flammable. So C is a problem Option D: it is difficult to store. So D is a problem So it is deduced that B is not a problem. |
Option A: Paragraph H;
Line 2 Option C: Paragraph G; Line 5 Option D: Paragraph E; Line 1 |
| 14 | A | In the short term fossil fuels may remain in demand as a hydrogen source. | Paragraph H;
Line 4 |
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