Auxiliary Machinery. Test 79

Auxiliary Machinery. Test 79

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What is part number 5 called ?
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What is the most dangerous effect of scale build up in the boiler water space?
In a refrigeration system the method of reducing the capacity without reducing the compressor speed is called:
How is a vacuum created in the fresh water generator?
A boiler burner fails each time it is started with failure indicated as 'flame failure'. Indicate the most likely reason.
The engine room high level bilge alarm keeps sounding every few minutes even though the bilge is empty. What action would you take ?
Which part is the Adjusting bolt ?
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What is the purpose of air release valves on boiler shell?
Which of the following would indicate the steam trap in the drawing was operating correctly?
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What is the usual pressure adjustment method on boiler safety valves?
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