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CHEMCO Exit Exam • Set 3 Question 23 of 30

Cargo system Valves can be categorized in many ways: identify one operation that can be classified as, manual remote,

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Direct Answer

Option C: A reach rod assembly is a series of steel rods coupled to connect the stem of the valve in the tank to a valve operating stand on deck.

Manual remote operation using a reach rod assembly, which connects a valve stem located below deck to an operating stand on deck, is a common method for controlling valves from a distance without full automation.

All Options

A
Local or remote actuation: Local control means the operator is at the valve and controls it directly.
B
When the valve is located some distance from the operator such as at the bottom of the cargo tank, it is then necessary to install a reach rod for remote actuation.
C
A reach rod assembly is a series of steel rods coupled to connect the stem of the valve in the tank to a valve operating stand on deck. (Correct Answer)
D
In automated cargo systems, the valves are frequently operated using hydraulic or pneumatic motors connected to the stem

Detailed Explanation & Context

Manual remote operation using a reach rod assembly, which connects a valve stem located below deck to an operating stand on deck, is a common method for controlling valves from a distance without full automation.

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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