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A dumpy level is set up with its eyepiece vertically over a peg A. The height from the top of peg A to the centre of the eyepiece is 1.540 m and the reading on peg B is 0.705 m. The level is then set up over B. The height of the eyepiece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is ________.

  • a)
    2.900 m

  • b)
    3.030 m

  • c)
    0.770 m

  • d)
    0.785 m

Correct answer is option 'C'. Can you explain this answer?
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A dumpy level is set up with its eyepiece vertically over a peg A. The...
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A dumpy level is set up with its eyepiece vertically over a peg A. The...
Given data:
Height of eyepiece above peg A, h1 = 1.540 m
Reading on peg B, RL(B) = 0.705 m
Height of eyepiece above peg B, h2 = 1.490 m
Reading on peg A, RL(A) = 2.195 m

To find: Difference in level between A and B

Approach:
The difference in level between two points is obtained by subtracting the reduced level (RL) of the lower point from the RL of the higher point.

1. Calculate the RL of A:
RL(A) = h1 + reading on A = 1.540 + 2.195 = 3.735 m

2. Calculate the RL of B:
RL(B) = h2 + reading on B = 1.490 + 0.705 = 2.195 m

3. Calculate the difference in level between A and B:
Difference in level = RL(A) - RL(B) = 3.735 - 2.195 = 1.540 m

Answer:
The difference in level between A and B is 0.770 m (Option C).
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A dumpy level is set up with its eyepiece vertically over a peg A. The...
{(1.54 - 1.49) + ( 2.195 -0.705)} ÷ 2 = 0.770 m
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A dumpy level is set up with its eyepiece vertically over a peg A. The height from the top of peg A to the centre of the eyepiece is 1.540 m and the reading on peg B is 0.705 m. The level is then set up over B. The height of the eyepiece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is ________.a)2.900 mb)3.030 mc)0.770 md)0.785 mCorrect answer is option 'C'. Can you explain this answer? for Civil Engineering (CE) 2025 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about A dumpy level is set up with its eyepiece vertically over a peg A. The height from the top of peg A to the centre of the eyepiece is 1.540 m and the reading on peg B is 0.705 m. The level is then set up over B. The height of the eyepiece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is ________.a)2.900 mb)3.030 mc)0.770 md)0.785 mCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A dumpy level is set up with its eyepiece vertically over a peg A. The height from the top of peg A to the centre of the eyepiece is 1.540 m and the reading on peg B is 0.705 m. The level is then set up over B. The height of the eyepiece above peg B is 1.490 m and a reading on A is 2.195 m. The difference in level between A and B is ________.a)2.900 mb)3.030 mc)0.770 md)0.785 mCorrect answer is option 'C'. Can you explain this answer?.
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