16.Study the following statements. i) Top lateral bracing prevents the sidesway buckling of the chord. ii) Sway bracing keeps the rectangular shape of the bridge cross-section. iii) Sway bracing transfers the load from top of end posts to bearings. The correct answer is

17.Which of the following conditions is to be satisfied both in elastic and plastic analysis ?

18.The least dimension in case of a circular column of diameter D is taken as

19.The effect of racking forces is considered in the design of i) lateral braces ii) chord members The correct answer is

20.As per IS:800, in the plastic design, which of the following pairs are correctly matched? Working Loads Load factor (i) Dead load 1.7 (ii) Dead Load + imposed load 1.7 (iii) Dead load + load due to wind or 1.3 seismic forces (iv) Dead load + imposed load + load 1.7 due to wind or seismic forces Of these statements