Which one of the following
relationships is true?

No Explaination.

The members which do not carry any force are

Conditions for zero force members are (i) The member meets at a joint and they are non-collinear and no external force acts at that joint. Both the members will be the zero force members. (ii) When the members meet at joint and two are collinear and no external force acts at the joint then third member will be zero force member. According to the above statements We can say that FT, TG, HU, MP and PL members are zero force members.

No Explaination.

Width of beam (b) = 250mm

Effective depth (d) =400 mm

As per IS-456:200

From clause 26.5.1.1 (a)

Minimum tension reinforcement

From clause 26.5.1.2(b)

Maximum tension reinforcement = 0.04bd = 0.04 × 250 × 400 = 4000mm^{2}

As per the Limit State Method of IS 800: 2007, the minimum length (rounded off to
the nearest higher multiple of 5 mm) of each weld to transmit a force P equal to 270
kN (factored) is

Maximum force carried by plates,

Load carried by each weld = P/2 = 136.36kN

For minimum length of weld,

Strength of weld=Load carried by weld

The minimum weight of the wall (expressed in kN per m length) required to prevent it
from overturning about its toe (Point P) is

As rotation and horizontal deflection in zero as per given figure. Therefore its stiffness is '∞' as deflection = 0. stiffness= Force/deflection and stiffness is zero in y direction

M – due to live load

N – due to wind load

As per IS800.

M - λ - 180

N - λ - 350 M<N