Which test was successfully conducted by ISRO in March 2025 in the development of the semi-cryogenic engine?

Correct option is D

The correct answer is (d) Hot test of the engine power head article
Explanation:
· ISRO conducted a successful hot test of the power head article of the SE200 semi-cryogenic engine in March 2025.
· This test evaluates turbopump performance, combustion stability and propellant flow under real operating conditions.
· The engine uses kerosene and liquid oxygen (LOX), providing higher thrust efficiency.
Information Booster:
· Semi-cryogenic engines are important for future heavy-lift launch vehicles.
· They reduce operational cost and increase payload capacity.
· The SE200 engine is part of India’s advanced propulsion development programme.
Additional Knowledge:
· Option (a) static fire tests are for solid rocket boosters, not semi-cryogenic engines.
· Option (b) cold tests check only propellant flow without ignition.
· Option (c) flight tests are conducted only after all ground tests such as hot tests are completed.