Question 616Steam Plants - Assistant Engineer
70% to passTurbine casing flanges are sometimes provided with a system of joint grooving to _______________.
Aform a labyrinth seal between the casing halves
Bincrease contact pressure between the casing halves' flanges
Cinject sealing compound between the casing halves
Densure perfect alignment of casing halves
AI Explanation
The correct answer is C) inject sealing compound between the casing halves. Turbine casing flanges are sometimes provided with a system of joint grooving to allow for the injection of a sealing compound between the casing halves. This helps create a tight seal and prevent leakage from the casing. The other options are incorrect because they do not directly address the purpose of the joint grooving feature. Option A describes a labyrinth seal, which is a different sealing mechanism. Option B refers to increasing contact pressure, which is not the primary function of the joint grooving. Option D is about ensuring alignment, which is a separate consideration from sealing.
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