Which of the following statement(s) is / are correct with respect to the deviations in construction of cellular coffer dams?

i. Closing of cells may be permitted with one additional or less pile from the design number.

ii. Deviation to verticality to the extent that the cell diameter does not vary more than 5 percent at any point may be accepted.

With reference to the water supply requirements in multi-storeyed buildings, overhead storage tank should be constructed at least __________ above the terrace level.

Which of the following statements are true for Radon Gas?

(i) It is a radioactive gas that has a pungent smell

(ii) It is produced from the natural radioactive decay of uranium, which is found in rocks and soils

(iii) Its high concentration in indoor air is one of the major causes of lung cancer

The construction of formwork normally involves the following operation.

The size of a step commonly adopted for residential buildings is

In Brick work on the elevation if it consists of alternate courses of all headers and all stretchers then this type of bond is called as

As per the Indian Standard code for Requirements of Low Income Housing in Urban Areas, the width of individual balcony shall not be more than

Expansion joints in masonry walls are generally provided at length interval of more than

The minimum number of holdfasts recommended on each side of a door frame and a window frame respectively are

Advantages of prefab construction over cast in situ construction