# Multiple choice question for engineering

## Set 1

1. Which of the following may not occur due to excessive deflection?

a) ponding problem in roofs

b) misalignment of supporting machinery

c) cracking of plaster ceilings

d) twisting of beam

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2. What is ponding?

a) excessive deflection of flat roof resulting in accumulation of rainwater

b) excessive deflection of flat roof not resulting in accumulation of rainwater

c) small deflection of flat roof resulting in accumulation of rainwater

d) small deflection of flat roof not resulting in accumulation of rainwater

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3. Deflection can be reduced by

a) proving less restraints

b) increasing span

c) increasing depth of beam

d) decreasing depth of beam

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4. Beam deflection is not a function of

a) loading

b) span

c) length of column

d) geometry of cross section

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5. What is the maximum vertical deflection in industrial building for purlins and girts subjected to live load/wind load for elastic cladding?

a) span/150

b) span/180

c) span/250

d) span/100

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6. What is the maximum vertical deflection in other buildings (other than industrial buildings)for floor subjected to live load and elements not susceptible to cracking?

a) span/150

b) span/180

c) span/300

d) span/100

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7. What is the maximum vertical deflection in other buildings (other than industrial buildings) for floor subjected to live load and elements susceptible to cracking?

a) span/150

b) span/360

c) span/300

d) span/100

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8. What is the maximum lateral deflection in other buildings (other than industrial buildings) subjected to wind load and for brittle cladding?

a) height/300

b) height/250

c) height/100

d) height/500

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9. What is the maximum vertical deflection for a cantilever member in other buildings (other than industrial buildings) subjected to live load and elements not susceptible to cracking?

a) span/150

b) span/180

c) span/300

d) span/100

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10. What is the maximum lateral deflection of column/frame in industrial buildings subjected to crane load plus wind load and for brittle cladding?

a) height/300

b) height/250

c) height/400

d) height/500

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11. The strength of steel beam depends on

a) strength of tension flange

b) strength of compression flange

c) strength of web

d) does not depend on strength of section

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12. A hole in flange of beam causes

a) increase in stress

b) decrease in stress

c) makes the stress to half

d) does not affect the stress

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13. Holes in beam webs should be placed at ____ and in flanges it should be placed at ________

a) high shear, high bending moment

b) high bending moment, high shear

c) low bending moment, low shear

d) low shear, low bending moment

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14. The strength of the beams with openings may be governed by plastic deformations due to

a) moment only

b) shear only

c) both moment and shear

d) does not depend on moment or shear

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15. Which of the following are correct regarding design of beams with openings?

a) web opening should be away from support by twice the beam depth

b) hole should be eccentrically placed in web

c) hole should not be placed within middle one third of the span

d) clear spacing between openings should be less than beam depth

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16. Which of the following are not correct regarding design of beams with openings?

a) diameter of circular opening should be restricted to 0.5D

b) for rectangular stiffened openings depth should be less than 0.7D and length less 2D

c) for rectangular unstiffened openings, depth should be less than 0.5D and length less than 1.5D

d) point load should be applied within a distance d from adjacent opening

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## Set 2

1. A column that can support same load in compression as it can in tension is called

a) intermediate column

b) long column

c) short column

d) cannot be determined

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2. The strength of compression members subjected to axial compression is defined by curves corresponding to _______ classes

a) a, b, c and d

b) a, d

c) b, e, f

d) e, f, g

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3. Which of the following is not a compression member?

a) strut

b) boom

c) tie

d) rafter

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4. The best compression member section generally used is

a) single angle section

b) I-section

c) double angle section

d) channel section

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5. The best double-angle compression member section is

a) unequal angles with short leg connected

b) unequal angles with long leg connected

c) unequal angles on opposite side of gusset plate

d) unequal angles on same side of gusset plate

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6. The flange is classified as semi-compact if outstand element of compression flange of rolled section is less than

a) 8.4ε

b) 10.5ε

c) 15.7ε

d) 9.4ε

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7. The flange is classified as plastic if outstand element of compression flange of rolled section is less than

a) 8.4ε

b) 9.4ε

c) 10.5ε

d) 15.7ε

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8. The outstand element of compression flange of a rolled section is 10.2 (ε=1). The flange will be classified as

a) compact

b) plastic

c) semi-compact

d) slender

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9. The design compressive stress of compression member in IS 800 is given by

a) Rankine Formula

b) Euler Formula

c) Perry-Robertson formula

d) Secant-Rankine formula

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## Set 3

1. Which of the following is correct criteria to be considered while designing?

a) Structure should be aesthetically pleasing but structurally unsafe

b) Structure should be cheap in cost even though it may be structurally unsafe

c) Structure should be structurally safe but less durable

d) Structure should be adequately safe, should have adequate serviceability

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2. What is serviceability?

a) It refers to condition when structure is not usable

b) It refers to services offered in the structure

c) It means that the structure should perform satisfactorily under different loads, without discomfort to user

d) It means that structure should be economically viable

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3. Analysis is referred to _____________

a) determination of cost of structure

b) determination of axial forces, bending moment, shear force etc.

c) determination of factor of safety

d) drafting architectural plans and drawings

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4. The structure is statically indeterminate when________________

a) static equilibrium equations are insufficient for determining internal forces and reactions on that structure

b) static equilibrium equations are sufficient for determining internal forces and reactions on that structure

c) structure is economically viable

d) structure is environment friendly

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5. Which of the following is one of the methods of analysis prescribed in the code for steel structures?

a) Hinge Analysis

b) Limit Analysis

c) Roller Analysis

d) Dynamic Analysis

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6. Which method is mainly adopted for design of steel structures as per IS code?

a) Limit State Method

b) Working Stress Method

c) Ultimate Load Method

d) Earthquake Load Method

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7. Which IS code is used for general construction of steel?

a) IS 456

b) IS 256

c) IS 800

d) IS 100

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8. Which of the following relation is correct?

a) Permissible Stress = Yield Stress x Factor of Safety

b) Permissible Stress = Yield Stress / Factor of Safety

c) Yield Stress = Permissible Stress / Factor of Safety

d) Permissible Stress = Yield Stress – Factor of Safety

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9. In Working Stress Method, which of the following relation is correct?

a) Working Stress ≤ Permissible Stress

b) Working Stress ≥ Permissible Stress

c) Working Stress = Permissible Stress

d) Working Stress > Permissible Stress

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10. Arrange the following in ascending order according to their factor of safety in working stress method :

(i) tension members, (ii) long column, (iii) short column, (iv) connections

a) i < ii < iii < iv

b) i < iv < ii < iii

c) i = iii < ii < iv

d) iv = i < iii < ii

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11. What is Load Factor?

a) ratio of working load to ultimate load

b) product of working load and ultimate load

c) product of working load and factor of safety

d) ratio of ultimate load to working load

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12. Which of the following is not a main element of framed structure?

a) Beam

b) Column

c) Shear connector

d) Lattice member

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13. Which of the following are subjected to both axial loads and bending moments?

a) Beam-Column

b) Column

c) Lattice member

d) Beam

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14. How much percentage increase of permissible stress is allowed when dead load, live load and wind load are considered together in working stress method?

a) 50%

b) 33%

c) 40%

d) 60%

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## Set 4

1. Which of the following are not the assumptions made in the analysis of welded joints?

a) welds connecting various joints are homogenous, isotropic

b) parts connected by weld are rigid

c) only stresses due to internal forces are considered

d) effects of residual stresses are neglected

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2. The minimum size of fillet weld should _______

a) not be less than 3mm

b) be less than 3mm

c) be less than 2mm

d) greater than thickness of thinner part joined

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3. The maximum size of fillet weld is obtained by _______

a) adding 1.5mm to thickness of thinner member to be jointed

b) adding 3mm to thickness of thinner member to be jointed

c) subtracting 3mm from thickness of thinner member to be jointed

d) subtracting 1.5mm from thickness of thinner member to be jointed

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4. What is the minimum specified length of fillet weld?

a) two times the size of weld

b) four times the size of weld

c) six times the size of weld

d) half the size of weld

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5. Effective length of fillet weld is _______

a) equal to overall length plus twice the weld size

b) twice the overall length plus twice the weld size

c) equal to overall length minus twice the weld size

d) twice the overall length minus twice the weld size

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6. End returns are made ________

a) equal to twice the size of weld

b) equal to half the size of weld

c) equal to the size of weld

d) equal to thrice the size of weld

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7. Which of the following is not true regarding effective throat thickness of weld?

a) Effective throat thickness should not be less than 3mm

b) It should not exceed 0.7t or 1t, where t is thickness of thinner plate of elements being welded

c) Effective throat thickness = K x size of weld, where K is a constant

d) Effective throat thickness = K x (size of weld)^{2} , where K is a constant

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8. The effective throat thickness is K times the size of weld. What is the value of K when angle between fusion faces is 80˚?

a) 0.5

b) 0.65

c) 0.7

d) 1

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Angle between fusion faces | 60˚-90˚ | 91˚-100˚ | 101˚-106˚ | 107˚-113˚ | 114˚-120˚ |

K | 0.7 | 0.65 | 0.6 | 0.55 | 0.5 |

9. The length of overlap of plates to be fillet welded in lap joint ____

a) should not be less than 4 times the thickness of thinner part

b) should be less than 4 times the thickness of thinner part

c) should be less than 2 times the thickness of thinner part

d) should not be less than 2 times the thickness of thinner part

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10. Which of the following option is incorrect?

a) Effective length of groove weld should not be less than 4 times the weld size

b) Effective length of groove weld should be less than 4 times the weld size

c) Effective length of intermittent weld should not be less than 4 times the weld size

d) Effective length of intermittent weld should have a minimum length 80mm

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## Set 5

1. Which of the following aspects need not be considered for beam design?

a) deflection

b) material of beam

c) buckling

d) lateral supports

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2. The design bending strength of laterally supported beams is governed by

a) torsion

b) bending

c) lateral torsional buckling

d) yield stress

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3. The web is susceptible to shear buckling when d/t_{w}

a) <67ε

b) < 2×67ε

c) >67ε

d) < 70ε

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_{w}> 67ε), the web is susceptible to shear buckling before yielding.

4. When there is no shear buckling,

a) V_{p} = V_{n}

b) V_{p} > V_{n}

c) V_{p} < V_{n}

d) V_{p} = 2V_{n}

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_{w}≤ 67ε), the nominal shear resistance V

_{n}equals plastic shear strength V

_{p}.

5. Plastic shear resistance is given by

a) f_{y}/√3

b) shear area x f_{y} x √3

c) shear area x f_{y}/√3

d) shear area / (f_{y}/√3)

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_{p}= shear area x f

_{y}/√3.

6. The design shear strength is given by

a) V_{n}

b) V_{n}/γ_{m0}

c) V_{n} x γ_{m0}

d) γ_{m0}

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_{d}= V

_{n}/γ

_{m0}, where V

_{n}= plastic shear resistance, γ

_{m0}= partial factor of safety.

7. The web area will be fully effective when shear force V

a) ≥ 0.6V_{d}

b) < 0.6V_{d}

c) ≤ 0.6V_{d}

d) >2×0.6V_{d}

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_{d}, the web area will be fully effective and entire cross section of beam will be effective in resisting the moment.

8. Which of the following is true about sections with high shear case V>0.6V_{d} ?

a) web area is ineffective

b) web area is fully effective

c) flanges will not resist moment

d) moment is not reduced

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_{d}, web area will be ineffective and only flanges will resist the moment. Because of this for high shear case, moment capacity of beam is reduced.