Subtopic: Thermodynamic principles of I.C. engines
Question Statement:
Discharge through an irrigation outlet is independent of the water levels in the distributary and water courses in case of
Options:
(A) non-modular outlet
(B) semi-modular outlet
(C) Kennedy's gauge outlet
(D) Gibb's module outlet
Official Answer Key:
D
Step-by-Step Solution & Explanation
A rigid (fully) modular outlet, such as Gibb's module, delivers a discharge that is independent of both the water level in the distributary channel (upstream) and the water level in the watercourse (downstream) — that is precisely the definition of a rigid module. A non-modular outlet (A) depends on both water levels; a semi-modular (flexible module) outlet (B), such as a pipe outlet or orifice-type semi-module, depends on the upstream (distributary) water level only, not the downstream one. ‘Kennedy's gauge outlet’ (C) is not a standard rigid-module outlet type. Hence (D) Gibb's module outlet is correct.
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