A rectangular block 2 m long, 1 m wide and 1 m deep floats in water, the depth of immersion being 0.5 m. If water weighs 10 kN/m3, then the weight of the block is________?

Which of the following methods of tunneling is used for long tunnels at great depths?

What refers to the cost of borrowing money or the amount earned by a unit principal per unit time?

The minimum head room over a stair must be________?

A queen closer is a________?

A simply supported beam carries a varying load from zero at one end and w at the other end. If the length of the beam is a, the shear force will be zero at a distance x from least loaded point where x is________?