Engine_2014 : Motor Plants and Auxiliary Boilers - 2460/2614
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| Where is a fusible plug installed on a Scotch or auxiliary boiler? |
| A) At the shell approximately 1 1/2 inches (3.8 cm) below the normal waterline. |
| B) At or near the center of the crown sheet of the combustion chamber. |
| C) In the furnace approximately 1 1/2 inches (3.8 cm) below the normal waterline. |
| D) In the furnace not more than 1 inch (2.54 cm) below the lowest permissible water level. |
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