Question 45Steam Plants - QMED70% to pass
An efficient seal is normally obtained between the upper and lower halves of a turbine casing by _______________.
AI Explanation
The correct answer is C) precision metal-to-metal contact.
In a turbine casing, the upper and lower halves need to be sealed efficiently to prevent leaks and maintain the proper pressure and flow within the system. Precision metal-to-metal contact between the mating surfaces of the casing halves is the most effective way to achieve this seal.
The other options are not suitable for this application. Asbestos gaskets (A) are outdated and not commonly used anymore due to health concerns. Flexible steel seal strips (B) may not provide a tight enough seal, and copper gaskets (D) are more commonly used in lower-pressure applications.
Related Questions
#43 The adjustable spherically seated self-aligning bearing housings used in main turbines are provided with oil deflector rings. The function of these rings is to _______________.#44 Which of the devices listed is found on an LP main propulsion steam turbine casing? #46 According to the illustrated cross-compounded main propulsion turbine set, where are the astern elements located? Illustration SE-0016 #47 While a vessel is underway, one of the FIRST indications of the failure of the gland leak off exhaust fan motor is _______________.#48 While making your rounds, you notice the main lube oil temperature to be higher than normal. To remedy this situation, you should _______________.