Question

A mild steel flat subjected to tensile force of 940 kN is connected to a gusset plate using bolts. If the permissible force required per pitch length (i) to shear a single bolt (ii) to crush the bolt. and (iii) to tear the plate are 50 kN, 80 kN and 60 kN respectively, then the number of bolts required will be _______

• A. 19

Answer 1

The correct option is A 19
Number of bolts required

$=\frac{\text{Tensile force}}{\text{Bolt value}}$

$\text{Now, bolt value = Min. of (shear, bearing strength)}$

$=50kN$

$\therefore$ Number of bolts required
$=\frac{940}{50}=18.18\simeq 19$