Design Of Steel Structures MCQs

Option A: Just above the freezing point

Option B: At the freezing point

Option C: Below the freezing point

Option D: None of these

Correct Answer: Below the freezing point ✔

Option A: 40mm

Option B: 60mm

Option C: 80mm

Option D: 100mm

Correct Answer: 60mm ✔

Option A: bending moment due to 2.5% of the column load

Option B: shear force due to 2.5% of the column load

Option C: 2.5% of the column load

Option D: both (A) and (B)

Correct Answer: shear force due to 2.5% of the column load ✔

Option A: only (i)

Option B: only (iii)

Option C: (i) and (ii)

Option D: (ii) and (iii)

Correct Answer: (i) and (ii) ✔

Option A: 3t

Option B: 4t

Option C: 6t

Option D: 8t

Correct Answer: 4t ✔

Option A: minimum weight

Option B: minimum depth

Option C: maximum weight

Option D: minimum thickness of web

Correct Answer: minimum weight ✔

Option A: shear buckling of web plate

Option B: compression buckling of web plate

Option C: yielding

Option D: all of the above

Correct Answer: compression buckling of web plate ✔

Option A: increasing the web thickness

Option B: providing suitable stiffeners

Option C: increasing the length of the bearing plates

Option D: none of the above

Correct Answer: increasing the length of the bearing plates ✔

Option A: 501

Option B: 851

Option C: 200 t

Option D: 2501

Correct Answer: 851 ✔

Option A: d/4

Option B: d/3

Option C: d/2

Option D: 2d/3

Correct Answer: d/3 ✔

Option A: axial forces

Option B: shear and axial forces

Option C: shear and bending forces

Option D: axial and bending forces

Correct Answer: shear and bending forces ✔

Option A: only (i)

Option B: both (i) and (ii)

Option C: both (i) and (iii)

Option D: (i), (ii) and (iii)

Correct Answer: both (i) and (iii) ✔

Option A: 1.33 d

Option B: 1.25 d

Option C: 1.5 d

Option D: 1.75 d

Correct Answer: 1.5 d ✔

Option A: 650 mm

Option B: 810 mm

Option C: 1250 mm

Option D: 1680 mm

Correct Answer: 1680 mm ✔

Option A: 4 mm

Option B: 5 mm

Option C: 6 mm

Option D: 8 mm

Correct Answer: 6 mm ✔

Option A: 1

Option B: 2

Option C: 3

Option D: 4

Correct Answer: 2 ✔

Option A: zero

Option B: ±0.2p

Option C: ± 0.5 p

Option D: ±0.7p

Correct Answer: ±0.2p ✔

Option A: 0.65 kN/m2

Option B: 0.75 kN/m2

Option C: 1.35 kN/m2

Option D: 1.50 kN/m2

Correct Answer: 0.65 kN/m2 ✔

Option A: 10 m

Option B: 20 m

Option C: 25 m

Option D: 50 m

Correct Answer: 10 m ✔

Option A: degree of permeability of roof

Option B: slope of roof

Option C: both (A) and (B)

Option D: none of the above

Correct Answer: slope of roof ✔

Option A: 4 zones

Option B: 5 zones

Option C: 6 zones

Option D: 7 zones

Correct Answer: 6 zones ✔

Option A: 1.5 d

Option B: 2.0 d

Option C: 2.5 d

Option D: 3.0 d

Correct Answer: 3.0 d ✔

Option A: weight of tank

Option B: wind pressure

Option C: water pressure

Option D: earthquake forces

Correct Answer: water pressure ✔

Option A: 1000 litre

Option B: 1650 litre

Option C: 1950 litre

Option D: 2450 litre

Correct Answer: 1950 litre ✔

Option A: less than d

Option B: equal to d

Option C: more than d

Option D: any of the above

Correct Answer: more than d ✔

Option A: 0

Option B: 0.5

Option C: between 0.5 and 1.0

Option D: 1.0

Correct Answer: 0 ✔

Option A: 1.23 m above the rail level

Option B: 1.50 m above the rail level

Option C: 1.83 m above the rail level

Option D: 2.13 m above the rail level

Correct Answer: 1.83 m above the rail level ✔

Option A: transfer load from top of end posts to bearings

Option B: keep the rectangular shape of the bridge cross-section

Option C: stiffen the structure laterally

Option D: prevent the sidesway buckling of top chord

Correct Answer: transfer load from top of end posts to bearings ✔

Option A: bearing and shear

Option B: bending and shear

Option C: bearing and bending

Option D: bearing, shear and bending

Correct Answer: bearing, shear and bending ✔

Option A: 1.18

Option B: 1.414

Option C: 1.67

Option D: 1.81

Correct Answer: 1.18 ✔

Option A: 1/12 of strain at the initiation of strain hardening and about 1/120 of maxi-mum strain

Option B: 1/2 of strain at the initiation of strain hardening and about 1/12 of maxi-mum strain

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

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

Correct Answer: 1/12 of strain at the initiation of strain hardening and 1/200 of maximum strain ✔

Option A: linear

Option B: parabolic

Option C: constant moment for all curvatures

Option D: constant curvature for all moments

Correct Answer: constant moment for all curvatures ✔

Option A: equilibrium and mechanism conditions

Option B: equilibrium and plastic moment conditions

Option C: mechanism and plastic moment conditions

Option D: equilibrium condition only

Correct Answer: equilibrium and plastic moment conditions ✔

Option A: always equal to factor of safety

Option B: always less than factor of safety

Option C: always greater than factor of safety

Option D: sometimes greater than factor of safety

Correct Answer: always greater than factor of safety ✔

Option A: equal to load factor in determinate structures

Option B: more than the load factor in determinate structures

Option C: less than the load factor in determinate structures

Option D: unpredictable

Correct Answer: more than the load factor in determinate structures ✔

Option A: displacement

Option B: load

Option C: slope

Option D: moment

Correct Answer: displacement ✔

Option A: 1.5

Option B: 1.7

Option C: 2.0

Option D: 2.34

Correct Answer: 2.34 ✔

Option A: 4.5 mm

Option B: 6 mm

Option C: 8 mm

Option D: 10 mm

Correct Answer: 8 mm ✔

Option A: are used to reduce the length of connection.

Option B: are unequal angles.

Option C: increases shear lag.

Option D: all the above

Correct Answer: are used to reduce the length of connection. ✔

Option A: 75 t2/h

Option B: 125 t3/h2

Option C: 125 t2/h

Option D: 175 t2/h

Correct Answer: 125 t2/h ✔

Option A: reduced by 25 %

Option B: reduced by 33.3%

Option C: increased by 25 %

Option D: increased by 33.3 %

Correct Answer: reduced by 33.3% ✔

Option A: shear in rivets

Option B: compression in rivets

Option C: tension in rivets

Option D: strength of rivets in bearing

Correct Answer: tension in rivets ✔

Option A: 500 mm

Option B: 600 mm

Option C: 1000 mm

Option D: 300 mm

Correct Answer: 1000 mm ✔

Option A: decrease in h/t ratio

Option B: increase in h/t ratio

Option C: decrease in thickness

Option D: increase in height

Correct Answer: increase in h/t ratio ✔

Option A: bottom chord area

Option B: top chord area

Option C: effective span of bridge

Option D: heaviest axle load of engine

Correct Answer: bottom chord area ✔

Option A: stringer beam

Option B: lintel beam

Option C: spandrel beam

Option D: header beam

Correct Answer: spandrel beam ✔

Option A: equal angles back to back

Option B: unqual legged angles with long legs back to back

Option C: unequal legged angles with short legs back to back

Option D: both (B) or (C)

Correct Answer: unqual legged angles with long legs back to back ✔

Option A: 1.5dV/C

Option B: 1.5d¥/C

Option C: 1.5d¥/C2

Option D: 1.5dY/C3

Correct Answer: 1.5d¥/C ✔

Option A: 0.55 Awfy

Option B: 0.65 Awfy

Option C: 0.75 Awfy

Option D: 0.85 Awfy

Correct Answer: 0.55 Awfy ✔

Option A: (i) and (ii) are correct

Option B: (i), (ii) and (iii) are correct

Option C: (ii) and (iii) are correct

Option D: only (i) is correct

Correct Answer: (i) and (ii) are correct ✔

Option A: equilibrium condition

Option B: yield condition

Option C: plastic moment condition

Option D: mechanism condition

Correct Answer: equilibrium condition ✔

Option A: is equal to 1

Option B: is always less than 1

Option C: is always greater than 1

Option D: can be less than 1

Correct Answer: is always greater than 1 ✔

Option A: equilibrium and mechanism conditions

Option B: equilibrium and plastic moment conditions

Option C: mechanism and plastic moment conditions

Option D: equilibrium condition only

Correct Answer: equilibrium and mechanism conditions ✔

Option A: only on the ultimate stress of the material

Option B: only on the yield stress of the material

Option C: only on the geometry of the section

Option D: both on the yield stress and ultimate stress of material

Correct Answer: only on the geometry of the section ✔

Option A: lower and upper bounds respectively on the strength of structure

Option B: upper and lower bounds respectively on the strength of structure

Option C: lower bound on the strength of structure

Option D: upper bound on the strength of structure

Correct Answer: upper and lower bounds respectively on the strength of structure ✔

Option A: rectangular beams up to 300 mm depth

Option B: all rectangular beams

Option C: solid circular beams only

Option D: all square cross-section beams

Correct Answer: rectangular beams up to 300 mm depth ✔

Option A: 0.5 D

Option B: 0.68 D

Option C: 0.88 D

Option D: D

Correct Answer: 0.88 D ✔

Option A: sway bracing

Option B: portal bracing

Option C: top lateral bracing

Option D: bottom lateral bracing

Correct Answer: portal bracing ✔

Option A: 2Vi % of the top panel wind load to bottom bracing

Option B: 10% of the top panel wind load to bottom bracing

Option C: 25% of the top panel wind load to bottom bracing

Option D: 50% of the top panel wind load to bottom bracing

Correct Answer: 50% of the top panel wind load to bottom bracing ✔

Option A: only (i)

Option B: only (ii)

Option C: both (i) and (ii)

Option D: none of the above

Correct Answer: only (i) ✔

Option A: deck type

Option B: through type

Option C: half through type

Option D: double deck type

Correct Answer: through type ✔

Option A: 6t

Option B: 101

Option C: 121

Option D: 161

Correct Answer: 101 ✔

Option A: horizontal shear due to wind or earthquake only

Option B: horizontal, shear due to wind or earthquake + 2.5% of column loads

Option C: column loads + 2.5% of horizontal shear due to wind or earthquake

Option D: column loads + full horizontal shear due to wind or earthquake

Correct Answer: horizontal, shear due to wind or earthquake + 2.5% of column loads ✔

Option A: angle section

Option B: channel section

Option C: box type section

Option D: any of the above

Correct Answer: box type section ✔

Option A: 95.0 MPa on net area

Option B: 105.5 MPa on net area

Option C: 105.5 MPa on gross area

Option D: 150.0 MPa on gross area

Correct Answer: 105.5 MPa on net area ✔

Option A: 3

Option B: 5

Option C: 6

Option D: 7

Correct Answer: 5 ✔

Option A: 10% of wall area

Option B: 20% of wall area

Option C: 30% of wall area

Option D: 50% of wall area

Correct Answer: 20% of wall area ✔

Option A: mean probable design life of structures

Option B: basic wind speed

Option C: both (A) and (B)

Option D: none of the above

Correct Answer: both (A) and (B) ✔

Option A: ± 0.2

Option B: ±0.5

Option C: ± 0.7

Option D: 0

Correct Answer: ± 0.7 ✔

Option A: pa V

Option B: paV2

Option C: p a (1/V)

Option D: paV”2

Correct Answer: paV2 ✔

Option A: axial force in rafter

Option B: shear force in rafter

Option C: deflection of rafter

Option D: bending moment in rafter

Correct Answer: bending moment in rafter ✔

Option A: 26’/2°

Option B: 30°

Option C: 35°

Option D: 40°

Correct Answer: 30° ✔

Option A: L/3 to L/5

Option B: L/4to2L/5

Option C: L/3 to L/2

Option D: 2L/5 to 3L/5 where L is span

Correct Answer: L/3 to L/5 ✔

Option A: horizontal shear only

Option B: vertical load only

Option C: both (A. and (B.

Option D: none of the above

Correct Answer: horizontal shear only ✔

Option A: lateral loads

Option B: longitudinal loads and vertical loads

Option C: lateral, longitudinal and vertical loads

Option D: lateral and longitudinal loads

Correct Answer: lateral, longitudinal and vertical loads ✔

Option A: transfer the load from the top flange to the bottom one

Option B: prevent buckling of web

Option C: decrease the effective depth of web

Option D: prevent excessive deflection

Correct Answer: prevent buckling of web ✔

Option A: 121

Option B: 161

Option C: 201

Option D: 251

Correct Answer: 161 ✔

Option A: 5 mm

Option B: 6 mm

Option C: 8 mm

Option D: 10 mm

Correct Answer: 6 mm ✔

Option A: vertical intermediate stiffener

Option B: horizontal stiffener at neutral axis

Option C: bearing stiffener

Option D: none of the above

Correct Answer: vertical intermediate stiffener ✔

Option A: 100

Option B: 120

Option C: 145

Option D: 180

Correct Answer: 145 ✔

Option A: 5%

Option B: 10%

Option C: 15%

Option D: 20%

Correct Answer: 10% ✔

Option A: 10° to 30°

Option B: 30° to 40°

Option C: 40° to 70°

Option D: 90°

Correct Answer: 40° to 70° ✔

Option A: prohibited

Option B: not prohibited

Option C: permitted at start and end of lacing system only

Option D: permitted between two parts of the lacing

Correct Answer: permitted at start and end of lacing system only ✔

Option A: lacing

Option B: battening

Option C: tie plates

Option D: perforated cover plates

Correct Answer: lacing ✔

Option A: it is uneconomical

Option B: it cannot carry the load safely

Option C: it is difficult to connect beams to the round sections

Option D: all of the above

Correct Answer: it is difficult to connect beams to the round sections ✔

Option A: 1:1

Option B: 1 : V2

Option C: V2 : 1

Option D: 2: 1

Correct Answer: V2 : 1 ✔

Option A: more

Option B: less

Option C: equal

Option D: none of the above

Correct Answer: more ✔

Option A: 0.67 L

Option B: 0.8 L

Option C: L

Option D: 1.5 L

Correct Answer: 0.8 L ✔

Option A: 180

Option B: 200

Option C: 250

Option D: 350

Correct Answer: 180 ✔

Option A: 1.0

Option B: 1.4

Option C: 1.8

Option D: 2.0

Correct Answer: 1.4 ✔

Option A: 150

Option B: 180

Option C: 250

Option D: 350

Correct Answer: 250 ✔

Option A: lesser of 200 mm and 12 t

Option B: lesser of 200 mm and 161

Option C: lesser of 300 mm and 32 t

Option D: lesser of 3 00 mm and 24 t

Correct Answer: lesser of 200 mm and 12 t ✔

Option A: 1.8 L

Option B: L

Option C: 1.1 L

Option D: 1.5 L

Correct Answer: L ✔

Option A: zero

Option B: 10

Option C: 100

Option D: infinity

Correct Answer: zero ✔

Option A: effective throat thickness

Option B: plate thickness

Option C: size of weld

Option D: penetration thickness

Correct Answer: effective throat thickness ✔

Option A: two times the weld size

Option B: four times the weld size

Option C: six times the weld size

Option D: weld size

Correct Answer: four times the weld size ✔

Option A: black bolt

Option B: ordinary unfinished bolt

Option C: turned and fitted bolt

Option D: high strength bolt

Correct Answer: high strength bolt ✔

Option A: shear

Option B: bending

Option C: axial tension

Option D: shear and bending

Correct Answer: axial tension ✔

Option A: 40%

Option B: 50%

Option C: 60%

Option D: 70%

Correct Answer: 60% ✔

Option A: stronger

Option B: weaker

Option C: equally strong

Option D: any of the above

Correct Answer: stronger ✔