Question

Which of the following is an Inch Sheet topographical map?

• A. 72
• B. 72 F
• C. 72 F/NE
• D. 72 F/10

Hint:

72 F = degree sheet; 72 F/10 = inch sheet; 72 F/NE = quarter of a degree sheet.

Answer 1

The Correct Option is D

Step 1: Understanding the Question:

• The question asks which sheet designation corresponds to an Inch Sheet topographical map of the Survey of India.

Step 2: Detailed Explanation:

• In the Survey of India numbering system, a degree sheet (for example 72 F) is divided into 16 sheets numbered 1 to 16; these are the one-inch (1:50,000 / 1:63,360 series) sheets, written like 72 F/10.

• 72 is the million sheet, 72 F is the degree sheet, and 72 F/NE denotes a quarter (NE, NW, SE, SW) of a degree sheet, not an inch sheet.

Step 3: Final Answer:
The correct option is (D) 72 F/10.