Question

Characteristics of National Waterway as per NTPC 1980?

• A. Navigability by mechanically propelled vessels
• B. 45 m wide channel and minimum 1.5 m depth
• C. Serve the interest of more than one State
• D. All of the above

Hint:

National Waterways are critical for the efficient movement of goods and are designed to meet specific navigational and physical criteria.

Answer 1

The Correct Option is D

The 1980 committee's definition of a National Waterway rests on three separate conditions together, not just one.
Navigability by mechanically propelled vessels, a minimum channel width and depth, and serving more than one State are each independently genuine parts of that definition.
Since all three hold true at once, no single one of them alone captures the full definition.
So, the correct answer is All of the above.

Answer 2

When a question lists several individually true statements and offers "All of the above" as an option, the safest approach is to verify each statement fails to be exclusive of the others rather than assuming the answer:

1. Navigability by mechanically propelled vessels: True on its own, but nothing about the definition suggests this condition alone, without the others, is sufficient.
2. 45 m wide channel and minimum 1.5 m depth: True on its own, but again just a physical specification, not the entire definition by itself.
3. Serve the interest of more than one State: True on its own, but a single criterion about jurisdiction does not cover the physical and navigability requirements too.
4. All of the above: Since each condition is necessary but none is sufficient alone, the complete definition requires combining all three, which is exactly this option.

Each condition is true but only partial, so the combined option is the one that fully captures the definition.

Therefore, the correct answer is All of the above.