• # question_answer 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

[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.