Engine: Motor Plants and Auxiliary Boilers

1. A The gauge glass should be blown down twice; first with the upper cut-out valve open and then with the lower cut-out valve open.
2. B The gauge glass should be blown down twice; first with the lower cut-out valve open and then with the upper cut-out valve open.
3. C The gauge glass should be blown down once with both the upper cut-out and lower cut-out valves open simultaneously.
4. D The gauge glass should be blown down once with the lower cut-out valve open.

Tip: press A-D to answer