Design of Steel Structure
The mechanism method and the statical method give

upper bound on the strength of structure
lower bound on the strength of structure
lower and upper bounds respectively on the strength of structure
upper and lower bounds respectively on the strength of structure

ANSWER DOWNLOAD EXAMIANS APP

Design of Steel Structure
In a gusseted base, when the end of the column is machined for complete bearing on the base plate, then the axial load is assumed to be transferred to base plate

75% by direct bearing and 25% through fastenings
Fully by direct bearing
50% by direct bearing and 50% through fastenings
Fully through fastenings

ANSWER DOWNLOAD EXAMIANS APP