Which of the following should be employed to provide lateral support to the beams ?
1. Bracing of compression flanges.
2. Shear connectors.
3. Bracing of tension flanges
4. Embedding compression flanges into R.C.C. slab.
Select the correct answer using the codes given below :

Two reservoirs at different surface elevations are connected by a set of two pipes A and B of same diameter and length in parallel. If the friction factor of A is 4 times that of the pipe B, what is the ratio of the discharge in A to that in B ?

Consider the following steps :
1. Driving sheet piles surrounding a vibration-receiving structure.
2. Digging a trench around a source of vibration.
3. Placing rubber mountings between a machine causing vibration and its base. Active isolation of vibration can be achieved by

A fixed beam is subjected to ment M₀ as shown in the figure. The fixed end moments will be :

A circular plate 100 mm diameter is welded to another plate by means of 6 mm fillet weld. If the permissible shearing stress in the weld equals 10 kg/mm², then the greatest twisting moment that can be resisted by the weld will be