Related Questions

Assertion A: When rock conditions are favorable, it will not be necessary to take up concrete lining concurrently with the driving operations till the full length of the tunnel has been driven through rock.
Reason R: A tunnel through rock, hard or soft, does not need any concrete lining
Select your answer
If L is total length of a canal in kilometers, P is total perimeter of its lining in metres and C is the cost of lining per square metre, the additional expenditure involved on lining, is
Load-bearing walls are defined as those walls which carry their own weight only whereas non-load bearing walls are defined as those walls which can carry superimposed loads in addition to their own weight.
The needle beam method of tunnelling
(i) Is suitable for soils in which roof can stand for few minutes without support
(ii) Is suitable for brick lining
(iii) Is suitable for concrete lining
(iv) Requires large number of trench jacks
Flat roofs can be made fireproof easier than pitched roofs.
___________ include privacy walls, boundary-marking walls on property, and town walls. These intergrade into fence.
___________ categorises walls into calculated walls and non-calculated walls.
Construction of cavity walls as external walls to protect the building from the outside heat or cold as the hollow space between two walls act as an ________
Proper amount of entrained air in concrete results in
(i) Better workability
(ii) Better resistance to freezing and thawing
(iii) Lesser workability
(iv) Less resistance to freezing and thawing
The cement concrete, from which entrained air and excess water are removed after placing it in position, is called ________