Direction Sense Test (Mains & Prelims Level)

Direction Sense tests your ability to trace a path mentally or on paper based on given instructions.

Standard Directions:
• Cardinal: North (N), South (S), East (E), West (W).
• Inter-cardinal: North-East (NE), North-West (NW), South-East (SE), South-West (SW).
Note: The angle between two adjacent main directions is 90°, and between a main and an adjacent sub-direction is 45°.

Always draw a rough map keeping the starting point at the center (origin).
• Right Turn (R): 90° Clockwise (CW).
• Left Turn (L): 90° Anti-clockwise (ACW).
• Shortest Distance: If the path forms a right angle, use the Pythagoras Theorem: H² = B² + P². For example, if you go 3km East and 4km North, the shortest distance from the start is √(3² + 4²) = 5km.

Shadow problems are instantly solvable if you remember these rules:
• Morning (Sunrise): Sun is in the East. All shadows fall strictly to the West.
• Evening (Sunset): Sun is in the West. All shadows fall strictly to the East.
• 12:00 Noon: Sun is exactly overhead. No shadow is formed.
Exam Trick: If in the morning a person's shadow falls to his 'Right', since shadows fall West in the morning, his 'Right' is West. Therefore, he must be facing South!

Train Smoke Rule: The direction of smoke is determined by the formula: (Opposite of Train's Direction) + (Wind's Direction). If a train goes North (smoke goes South) and wind blows East, the smoke goes South-East.

Coded Directions (Mains Level): Like blood relations, symbols represent directions (e.g., A @ B means A is North of B). Draw the grid step-by-step and use coordinate geometry logic to find the final relative position.