MHT CET · Chemistry · d and f Block Elements

Identify the alloy used for construction of gas turbine engines.

A Nichrome
B Bronze
C Stainless steel
D Cupra-nickel

Verified Solution

Answer & Solution

Correct Answer

(A) Nichrome

Step-by-step Solution

Detailed explanation

Nichrome, an alloy of nickel and chromium in the ratio \(\mathbf{8 0} \mathbf{: 2 0}\) has been developed specifically for gas turbine engines. Titanium alloys withstand stress up to high temperatures and are used for ultrahigh-speed flight, fireproof bulkheads, and exhaust shrouds.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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