DESIGN OF STEEL STRUCTURE QUIZ

0.65 Awfy

0.75 Awfy

0.85 Awfy

0.55 Awfy

equilibrium and mechanism conditions

equilibrium condition only

mechanism and plastic moment conditions

equilibrium and plastic moment conditions

more than d

equal to d

Any of these

less than d

1/12 of strain at the initiation of strain hardening and 1/200 of maximum strain

1/24 of strain at the initiation of strain hardening and about 1/200 of maximum strain

1/2 of strain at the initiation of strain hardening and about 1/12 of maximum strain

1/12 of strain at the initiation of strain hardening and about 1/120 of maximum strain

1.75 d

1.5 d

1.25 d

1.33 d

(i), (ii) and (iii)

only (i)

both (i) and (iii)

both (i) and (ii)

250

350

150

180

both (a) and (b)

slope of roof

degree of permeability of roof

None of these

250 t

50 t

200 t

85 t

1.5 L

1.3 L

1.1 L

1.8 L