With reference to Semi Cryogenic engine consider the following statements 1 It uses ISROSENE as fuel...........

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With reference to Semi Cryogenic engine consider the following statements:

1. It uses ISROSENE as fuel.

2. ISROSENE is a far ‘greener’ fuel than the fuel currently used in Indian rockets.

Which of the statements given above is/are correct?

1 only

2 only

Both 1 and 2

Neither 1 nor 2

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Explanation:

Recently, The heaviest Semi-Cryogenic propellant tank (SC120- LOX) ever fabricated by Hindustan Aeronautical Limited(HAL) has been delivered to Indian Space Research Organization (ISRO).

Statement 1 is correct: ISRO has successfully developed ISROSENE, which is a rocket grade version of kerosene as an alternative to conventional hydrazine rocket fuel. Statement

2 is correct: ISROSENE, is a far ‘greener’ fuel than the unsymmetrical dimethyl hydrazine (UDMH) that is currently used in Indian rockets, which is also highly toxic and carcinogenic.

UDMH is is a colorless liquid, with a sharp, fishy, ammonia-like smell typical for organic amines. In concentration between 2.5% and 95% in air, its vapors are flammable. It is not sensitive to shock. It is stable and can be kept loaded in rocket fuel systems for long periods, which makes it appealing for use in many liquid rocket engines, despite its cost. According to scientific data, usage of UDMH in rockets at Baikonur Cosmodrome has had adverse effects on the environment and local population