Question

The reduced level of a factory floor is 36.00 m, and the staff reading on the f loor is 1.40 m. The staff reading when held inverted with the bottom touching the Tee-beam of the roof is 3.67 m. What will be the height of the beam above the floor?

• A. 5.07 m
• B. 2.27 m
• C. 3.35 m
• D. 4.77 m

Hint:

For inverted staff readings:
Total height = Floor reading + Inverted reading.
This method is commonly used for height determination.

Answer 1

The Correct Option is A

The height of the beam above the floor is calculated as:
Height of the beam = Staff reading (inverted) + Staff reading (floor).
Given:
• Staff reading on the floor = 1.40 m,
• Staff reading when inverted = 3.67 m.
Substitute the values:
Height of the beam = \(1.40+3.67 = 5.07m.\)