Question 371Steam Plants - 1st Asst/Chief
70% to passTurbine casing flanges are sometimes provided with a system of joint grooving to _______________.
Ainject sealing compound between the casing halves
Bform a labyrinth seal between the casing halves
Censure perfect alignment of casing halves
Dincrease contact pressure between the casing halves' flanges
AI Explanation
The correct answer is A) 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 of fluids or gases from the turbine casing. The other options are incorrect because: B) a labyrinth seal is a different type of seal that does not involve injecting compound, C) ensuring perfect alignment is not the primary purpose of the joint grooving, and D) increasing contact pressure between the flanges is not the main function of the joint grooving system.
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