## 81. In the cross-section of a weld, throat is the

## 82. For rivets in tension with counter-sunk heads, the tensile value shall be

## 83. Area of openings for buildings of large permeability is more than

## 84. Load factor is

## 85. Lug angles . . . . . . . .

## 86. The effective length of a battened column is increased by

## 87. The statical method of plastic analysis satisfies

## 88. The mechanism method of plastic analysis satisfies

## 89. When the axis of load lies in the plane of rivet group, then the most heavily loaded rivet will be the one which (where, Fa is the load shared by each rivet due to axial load and Fm is the shearing load due to moment in any rivet.)

## 90. The minimum thickness of a steel plate, which is directly exposed to weather and is not accessible for cleaning and repainting, should be:

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