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WorksheetsDay 65-Nov 28-worksheet-Btech-Footings part 1
Total questions: 15
Worksheet time: 11mins
Which footing is used when the width of a column footing cannot be increased due to boundary restrictions?
Mat footing
Isolated footing
Strap footing
Pile footing
For zero tension at the base of a footing, eccentricity must satisfy —
e≤L/12
e≤L/8
e≤L/4
e≤L/6
Which footing is suitable for soils of very low bearing capacity and heavy column loads?
Pad footing
Raft foundation
Combined footing
Strap footing
Which foundation transfers load to hard strata located at large depth?
Strip footing
Combined footing
Pile foundation
Raft footing
Maximum soil pressure under eccentric loading is —
P/A−(My)/I
P/A+(My)/I
My/I only
P/A only
Critical section for bending moment in an isolated footing occurs at
Centre of footing
Centre of column
Face of the column
Toe of footing
Raft foundation is preferred when soil has high bearing capacity
True
False
In strap footing, the strap beam transfers load directly to the soil
True
False
When isolated footings overlap, a (a) footing is provided.
Strip footing distributes the load of a _______ across the ground.
load-bearing wall
isolated column
machine foundation
water tank
Self-weight of footing is taken as (a) times the column load P.
Plan area of footing = Total working load / (a) .
Moment due to eccentricity is M = P * (a) .
As per code, minimum footing edge thickness must be at least (a) .
A rectangular footing of size 3 m × 2 m supports a column load of 600 kN with an eccentricity of 0.1 m along the 3 m length direction.
Find qmax and qmin.
(a)
