Question 208Steam Plants - Assistant Engineer70% to pass
The items labeled "D" and "M" as indicated on the illustration are commonly called _______________. Illustration SG-0020
AI Explanation
The correct answer is D) mica sheets.
Mica sheets are the items commonly labeled as "D" and "M" on the illustration SG-0020. Mica is a naturally occurring mineral that is often used in electrical equipment due to its insulating properties. In the context of a US Coast Guard Captain's License Examination, mica sheets are typically used as insulating materials in various electrical components and devices found on vessels.
The other answer choices are incorrect because cork gaskets, glass inserts, and face plates do not typically have the same insulating function as mica sheets in electrical equipment on ships.
Related Questions
#206 The purpose of the mica used in a boiler water gage glass assembly is to prevent _______________.#207 In a boiler water gage glass, a ball check valve is installed on the _______________.#209 Bi-color water level indicators, connected directly to the boiler drum, operate on the principle of _______________.#210 Which of the listed problems will happen when the water level of a fire-tube type auxiliary boiler approaches the crown sheet? #212 Which of the following statements concerning fire-tube boilers is correct?