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CHEMCO Exit Exam • Set 7 Question 14 of 30

To which controller first low signal selector passes the master signal on low steam demand?

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Direct Answer

Option A: Fuel controller

On low steam demand, the master signal is reduced. The low signal selector directs this to the fuel controller, which then proportionally reduces fuel input to match the reduced steam requirement, maintaining boiler stability and efficiency.

All Options

A
Fuel controller (Correct Answer)
B
Air controller
C
Forced draft fan speed

Detailed Explanation & Context

On low steam demand, the master signal is reduced. The low signal selector directs this to the fuel controller, which then proportionally reduces fuel input to match the reduced steam requirement, maintaining boiler stability and efficiency.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Chemical Tanker Cargo Operations (CHEMCO).

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