RCC STRUCTURES DESIGN QUIZ

Be more at the edges of the foundation

Be zero at the centre of the foundation

Be uniform

Not be uniform

(Area of the column A × Safe punching stress)/Load on column A

None of these

(Perimeter of column A × Safe punching stress)/(Load on column A + Upward pressure × Area of the column)

(Perimeter of column A × Safe punching stress)/(Load on column A × Upward pressure × Area of the column)

Parabolic with convexity upward

Straight below centroidal axis

Parabolic with convexity downward

Straight above centroidal axis

5.0 cm larger than the diameter of the column

4.0 cm larger than the diameter of the column

0.25 times the span length

0.25 times the diameter of the column

275 KN/mm²

250 KN/mm²

150 KN/mm²

200 KN/mm²

f = (P/'- (Z/M)

f = (P/A) - (M/Z)

f = (P/A) - (M/6Z)

f = (A/P) - (M/Z)

1.0

2.0

3.0

1.5

Smaller of 40 mm or diameter

Greater of 25 mm or diameter

Smaller of 25 mm or diameter

Greater of 40 mm or diameter

b/4

b/6

b/3

b/5

All listed here

40°

30°

45°