UPSSSC JE (CE) Quiz 2

A rectangular floating body is 20 m long and 5 m wide. The water line is 1.5 m above the bottom. If the centre of gravity is 1.8 m from the bottom, then its metacentric height will be approximately:

A 250 ml water sample initially has pH 10. For the sample of pH 4.5, 25 ml of 0.02 N  is required. The total alkalinity of water as  in mg/l is

The rectangular column shown in the figure carries a load P having eccentricity, then stress at point A is

A precast concrete pile has size 40 cm x 40 cm, ultimate load carrying capacity of pile is 1200 KN, C and ∝ are 50 KN/m² and 0.6 respectively then what is the length of the pile?

Which of the following is NOT included in the floor area?

(1) Clear coverage area

(2) Area of the walls

(3) Sills of the doors

(4) Sills of the windows

When operated separately, pipe A takes 5 hours less than pipe B to fill a cistern, and when operated together, the cistern gets filled in 6 hours. In how much time (in hours) will pipe A fill the cistern, if operate separately?

Choose the correct option: