Assertion (A) : Road camber helps in surface drainage.
Reason (R) : In a curved road alignment, super elevation serves the purpose of camber.
In the light of the above statements, choose the most appropriate answer from the options given below :
Road camber refers to the transverse slope provided to the road surface from the center towards the edges. This slope is intentionally designed to allow rainwater or surface water to drain off effectively, preventing accumulation on the road surface. Therefore, Assertion (A) is correct. Camber is crucial for maintaining pavement integrity and ensuring visibility by keeping the surface dry.
Super elevation is the process of banking the road on the outer side of a curve. Its primary purpose is to counteract the centrifugal force acting on vehicles, providing a lateral force (through gravity) that helps keep vehicles stable and on their intended path. While super elevation does provide a transverse slope, similar to camber, and can contribute to drainage on curves, its main function is safety, not drainage itself. Camber's primary function is *always* surface drainage, applicable on both straight sections and curves. Super elevation is specific to curves and designed for safety.
Therefore, while super elevation provides a slope that aids drainage, stating it "serves the purpose of camber" is misleading because their primary functions differ significantly. Super elevation's purpose is safety on curves; camber's purpose is drainage.
Thus, Reason (R) is factually correct in that super elevation provides a slope, but it does not accurately represent its primary purpose in relation to camber's function.
Assertion (A) correctly states that camber aids drainage. Reason (R) correctly states that super elevation provides a slope on curves, but incorrectly implies it serves the *same primary purpose* as camber (drainage). Super elevation's main role is countering centrifugal forces for safety, although it has a secondary drainage benefit. Camber's main role is drainage. Since the primary purposes are different, Reason (R) is not the correct explanation for Assertion (A). Both statements are factually correct individually, but R does not explain A.
Morgenthau's principles of political realism are:
A. Politics is rooted in permanent and unchanging human nature which is basically self centred, self-regarding and self-interested
B. Politics is an autonomous sphere of action and cannot therefore be reduced to morals
C. International Politics is an arena of conflicting self-interests
D. The ethics of international relations is situational ethics which is very different from private morality
Choose the correct answer from the options given below:
Who among the following political thinkers consider the anarchical self help system to be a compelling factor for States to maximise their relative power positions?