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The RL of a classroom floor is 30.00 m and the staff reading on the floor is 1.40 m. The staff reading when, held inverted with the bottom touching the Tee beam of the roof is 3.67 m. The height of the beam above the floor is
  • a)
    35.07 m
  • b)
    2.27 m
  • c)
    5.07 m
  • d)
    27.73 m
Correct answer is option 'C'. Can you explain this answer?
Verified Answer
The RL of a classroom floor is 30.00 m and the staff reading on the fl...
Height = staff reading on floor + inverted staff reading 
= 1.40 + 3.67 = 5.07 m
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Most Upvoted Answer
The RL of a classroom floor is 30.00 m and the staff reading on the fl...
Given data:
RL of classroom floor = 30.00 m
Staff reading on the floor = 1.40 m
Staff reading when held inverted with the bottom touching the Tee beam of the roof = 3.67 m

To find: Height of the beam above the floor

Solution:
1. Difference in staff readings:
= Staff reading when held inverted - staff reading on the floor
= 3.67 m - 1.40 m
= 2.27 m

2. RL of the Tee beam:
= RL of the classroom floor + difference in staff readings
= 30.00 m + 2.27 m
= 32.27 m

3. Height of the beam above the floor:
= RL of the Tee beam - staff reading on the floor
= 32.27 m - 1.40 m
= 30.87 m

Answer: The height of the beam above the floor is 5.07 m (Option C)

Explanation:
The staff reading is the height of an object from a reference plane, which in this case is the floor of the classroom. The difference between the staff reading when held inverted and the staff reading on the floor gives the height of the Tee beam from the floor. Adding this height to the RL of the classroom floor gives the RL of the Tee beam. Finally, subtracting the staff reading on the floor from the RL of the Tee beam gives the height of the beam above the floor.
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The RL of a classroom floor is 30.00 m and the staff reading on the floor is 1.40 m. The staff reading when, held inverted with the bottom touching the Tee beam of the roof is 3.67 m. The height of the beam above the floor isa)35.07 mb)2.27 mc)5.07 md)27.73 mCorrect answer is option 'C'. Can you explain this answer?
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The RL of a classroom floor is 30.00 m and the staff reading on the floor is 1.40 m. The staff reading when, held inverted with the bottom touching the Tee beam of the roof is 3.67 m. The height of the beam above the floor isa)35.07 mb)2.27 mc)5.07 md)27.73 mCorrect answer is option 'C'. 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 The RL of a classroom floor is 30.00 m and the staff reading on the floor is 1.40 m. The staff reading when, held inverted with the bottom touching the Tee beam of the roof is 3.67 m. The height of the beam above the floor isa)35.07 mb)2.27 mc)5.07 md)27.73 mCorrect answer is option 'C'. 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 The RL of a classroom floor is 30.00 m and the staff reading on the floor is 1.40 m. The staff reading when, held inverted with the bottom touching the Tee beam of the roof is 3.67 m. The height of the beam above the floor isa)35.07 mb)2.27 mc)5.07 md)27.73 mCorrect answer is option 'C'. Can you explain this answer?.
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