| Consider the following statements regarding cryogenic engines. |
| 1. Cryogenic engines are capable of running at a very low temperature. |
| 2. The fuel used is liquid hydrogen and liquid oxygen. |
| 3. To make liquid hydrogen, the minimum temperature required is \[-253{}^\circ C\]and for liquid oxygen is\[186{}^\circ C\]. |
| 4. In the renewed agreement with Russia, India will import seven cryogenic engines. |
| Which of the statements given above are correct? |
A) 1, 2 and 4
B) 2 and 4
C) 1, 3 and 4
D) All of these
Correct Answer: D
Solution :
[d] All these statements are correct, cryogenic engines are capable of running at a very low temperature. The fuel used is liquid hydrogen and liquid oxygen. Statement 3 is also correct as, to make liquid hydrogen, the minimum temperature required is \[-253{}^\circ C\]and for liquid oxygen is\[-186{}^\circ \,\,C\]. Statement 4 is also correct.
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