Civil Engineering (CE) Exam > Civil Engineering (CE) Questions > Which of the following statements is incorrec...
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Which of the following statements is incorrect?
- a)Error due to refraction may not be completely eliminated by reciprocal levelling
- b)Tilting levels are commonly used for precision work
- c)The last reading of levelling is always a foresight
- d)All of the above statements are incorrect
Correct answer is option 'D'. Can you explain this answer?
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Which of the following statements is incorrect?a)Error due to refracti...
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Which of the following statements is incorrect?a)Error due to refracti...
Levelling in Surveying
Levelling is a process of determining the elevation of a point relative to a datum or reference level. It is an essential part of surveying and is used to establish the height of points, the slope of the ground, and the relative heights of various features.
Incorrect Statements
a) Error due to refraction may not be completely eliminated by reciprocal levelling - This statement is correct. Refraction is the bending of light as it passes through the atmosphere, which can cause errors in levelling. Reciprocal levelling is a technique used to eliminate the effects of refraction by taking readings in opposite directions and averaging the results. However, this technique may not completely eliminate the effects of refraction.
b) Tilting levels are commonly used for precision work - This statement is incorrect. Tilting levels, also known as dumpy levels, are not commonly used for precision work as they suffer from errors due to the tilting of the instrument. Instead, more precise instruments such as automatic levels or digital levels are used for precision work.
c) The last reading of levelling is always a foresight - This statement is incorrect. The last reading of levelling may be a backsight or a foresight, depending on the method used. In a single levelling, the last reading is a backsight, while in a differential levelling, the last reading is a foresight.
d) All of the above statements are incorrect - This statement is incorrect as statement a) is correct.
Conclusion
The incorrect statement is option 'D', which states that all of the above statements are incorrect. In reality, statement a) is correct, while statements b) and c) are incorrect.
Levelling is a process of determining the elevation of a point relative to a datum or reference level. It is an essential part of surveying and is used to establish the height of points, the slope of the ground, and the relative heights of various features.
Incorrect Statements
a) Error due to refraction may not be completely eliminated by reciprocal levelling - This statement is correct. Refraction is the bending of light as it passes through the atmosphere, which can cause errors in levelling. Reciprocal levelling is a technique used to eliminate the effects of refraction by taking readings in opposite directions and averaging the results. However, this technique may not completely eliminate the effects of refraction.
b) Tilting levels are commonly used for precision work - This statement is incorrect. Tilting levels, also known as dumpy levels, are not commonly used for precision work as they suffer from errors due to the tilting of the instrument. Instead, more precise instruments such as automatic levels or digital levels are used for precision work.
c) The last reading of levelling is always a foresight - This statement is incorrect. The last reading of levelling may be a backsight or a foresight, depending on the method used. In a single levelling, the last reading is a backsight, while in a differential levelling, the last reading is a foresight.
d) All of the above statements are incorrect - This statement is incorrect as statement a) is correct.
Conclusion
The incorrect statement is option 'D', which states that all of the above statements are incorrect. In reality, statement a) is correct, while statements b) and c) are incorrect.
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Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer?
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Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer?.
Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer? for Civil Engineering (CE) 2024 is part of Civil Engineering (CE) preparation. The Question and answers have been prepared according to the Civil Engineering (CE) exam syllabus. Information about Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer? covers all topics & solutions for Civil Engineering (CE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer?.
Solutions for Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Civil Engineering (CE).
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Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer?, a detailed solution for Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer? has been provided alongside types of Which of the following statements is incorrect?a)Error due to refraction may not be completely eliminated by reciprocal levellingb)Tilting levels are commonly used for precision workc)The last reading of levelling is always a foresightd)All of the above statements are incorrectCorrect answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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