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← TechnologyWhich risk increases when temperature suddenly decreases in a turbocharger's turbine housing?
A)Thermal shock induced cracking✓
B)Oil thickening causing bearing failure
C)Compressor surge from density change
D)Wastegate malfunction due to contraction.
💡 Explanation
When temperature rapidly decreases, thermal shock occurs because uneven contraction creates stress exceeding the material's tensile strength, leading to cracking. Therefore, thermal shock induced cracking results, rather than oil thickening, compressor surge, or wastegate malfunction, which have different environmental triggers.
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